US 2017/0362862 A1 · SASH WINDOW RESTRICTOR

Abstract

A sash window restrictor (20) has a housing (22) which is to be let into a vertical frame member (10) of one sash (normally the upper, outer sash) of a window, at a position, say, 10 cm above the top rail of the lower sash when the windows are closed. A tab (24) is mounted in the housing and can be retracted into the housing or extended from the housing. A mechanism acts between the tab and the housing and allows the tab to be pressed into the housing and held in the housing for a period of time before the tab is released to allow the tab to extend. With the tab extended, the lower sash (12) can be lifted until it reaches the tab (24) but no further, so that a 10 cm gap will be opened at the bottom of the window.

Claims75

Dependent claims

1-7. (canceled)

A restrictor for restricting the movement of a sash window at least from a first sash position to a second sash position, the restrictor comprising:

a housing;
and
a tab,
the tab a one-piece unitary structure,
the tab moveable with respect to the housing between at least a first restricting position and at least a first retracted position,
the tab extending from a face of the housing in the first restricting position,
at least a portion of the tab in the housing in the first retracted position,
the restrictor configured such that the restrictor can be positioned relative to the sash window such that:
with the tab in the first restricting position, an edge of the tab prevents the sash window from moving from the first sash position to the second sash position,
moving the tab from the first restricting position to the first retracted position enables the sash window to be moved relative to the housing from the first sash position to the second sash position, and
the sash window contacts the tab as the sash window is moved from the first sash position to the second sash position.

8 more elements

A restrictor, comprising:

a housing;
a tab;
and
a pushing element,
the entirety of the tab a one-piece unitary structure,
the tab pivotally mounted on the housing, whereby the tab is pivotally movable relative to the housing about a first pivot axis among at least a first pivot position, a second pivot position and a third pivot position, whereby the tab is movable from the first pivot position to the second pivot position by movement consisting solely of pivotally moving the entirety of the tab about the first pivot axis, the tab is movable from the second pivot position to the third pivot position by movement consisting solely of pivotally moving the entirety of the tab about the first pivot axis, and the tab is movable from the third pivot position to the first pivot position by movement consisting solely of pivotally moving the entirety of the tab about the first pivot axis,
an entirety of the housing to a second side of a first plane,
in the first pivot position:
a first portion of the tab is to a first side of the first plane, and a second portion of the tab is to the second side of the first plane, the first portion of the tab and the second portion of the tab together comprising an entirety of the tab, the first side of the first plane and the second side of the first plane on respective opposite sides of the first plane, and
the first portion of the tab would prevent a window sash structure, that has a flat front surface and a flat top surface, the flat top surface perpendicular to the flat front surface, from being moved, with the flat front surface moving along the first plane in a first direction perpendicular to a plane defined by said flat top surface, with an entirety of the window sash structure, other than the flat front surface, to the first side of the first plane, toward where the flat top surface comes into contact with the tab, past where the flat top surface contacts the tab,
in the second pivot position:
a third portion of the tab is to the first side of the first plane, and a fourth portion of the tab is to the second side of the first plane, the third portion of the tab and the fourth portion of the tab together comprising an entirety of the tab, and
the third portion of the tab would not prevent said window sash structure from being moved, with the flat front surface moving along the first plane in the first direction, into contact with the tab and then beyond where the window sash structure contacts the tab,
in the third pivot position, an entirety of the tab is to the second side of the first plane,
with the tab in the second pivot position, moving said window sash structure such that the flat front surface moves along the first plane in the first direction such that a first portion of the flat front surface moves past the tab, would cause the window sash structure to contact the fourth portion of the tab, and thereby (1) cause the tab to move from the second pivot position to the third pivot position, and (2) cause the tab to come into contact along a second portion of the flat front surface whereby the contact between the tab and the second portion of the flat front surface prevents the tab from being moved toward the first pivot position by force exerted by the pushing element, and
with the tab in the third pivot position, moving said window sash structure such that the flat front surface moves along the first plane in a second direction, the second direction opposite the first direction, such that said first portion of the flat front surface moves past the tab in the second direction, so that the flat front surface reaches a position at which no portion of the flat front surface blocks the tab from being moved by the force exerted by the pushing element, would allow the pushing element to move the tab from the third pivot position to the first pivot position.

13 more elements

A restrictor, comprising:

a housing;
a tab;
and
a pushing element,
an entirety of the housing to a second side of a first plane,
the tab movable relative to the housing among at least a first tab position, a second tab position and a third tab position, the tab a one-piece unitary structure,
in the first tab position, a first portion of the tab is to a first side of the first plane, the first portion of the tab comprises a first extremity of the tab, the first extremity of the tab spaced from the first plane by a first distance, the first distance equal to or greater than respective distances that every other point on the tab is spaced from the first plane, in the second tab position, the first extremity of the tab is a second distance from the first plane,
the second distance smaller than the first distance,
with the tab in the first tab position:
a second portion of the tab is to the second side of the first plane, the first portion of the tab and the second portion of the tab together comprising an entirety of the tab, the first side of the first plane and the second side of the first plane on respective opposite sides of the first plane, and
the first portion of the tab would prevent a window sash structure, that has a flat front surface and a flat top surface, the entirety of the window sash structure, other than the flat front surface, to the first side of the first plane, and the flat top surface perpendicular to the flat front surface, from being moved, with the flat front surface moving along the first plane in a first direction perpendicular to a plane defined by said flat top surface, toward where the flat top surface comes into contact with the tab, past where the flat top surface contacts the tab,
with the tab in the second tab position:
a third portion of the tab is to the first side of the first plane, and a fourth portion of the tab is to the second side of the first plane, the third portion of the tab and the fourth portion of the tab together comprising an entirety of the tab, and
the third portion of the tab would not prevent said window sash structure from being moved, with the flat front surface moving along the first plane in the first direction, into contact with the tab and then beyond where the window sash structure contacts the tab,
in the third tab position, an entirety of the tab is to the second side of the first plane,
with the tab in the second tab position, moving said window sash structure such that the flat front surface moves along the first plane in the first direction such that a first part of the flat front surface moves past the tab, would cause the window sash structure to contact the first portion of the tab.

13 more elements

A restrictor, comprising:

a housing;
a tab;
and
a pushing element,
an entirety of the housing to a second side of a first plane,
the tab movable relative to the housing among at least a first tab position, a second tab position and a third tab position,
in the first tab position, a first portion of the tab is to a first side of the first plane, the first portion of the tab comprises a first extremity of the tab, the first extremity of the tab spaced from the first plane by a first distance, the first distance equal to or greater than respective distances that every other point on the tab is spaced from the first plane, in the second tab position, the first extremity of the tab is a second distance from the first plane,
the second distance smaller than the first distance,
in the third tab position, an entirety of the tab is to the second side of the first plane,
pressing the tab to move the tab from the first tab position to the third tab position and then releasing the tab causes the tab to move to the second tab position,
pressing the tab to move the tab from the second tab position to the third tab position and then releasing the tab causes the tab to move to the first tab position, and
the first portion of the tab comprises at least a first sloped surface that defines a sloped angle with respect to the first plane, the first sloped surface non-parallel with respect to the first plane and non-perpendicular with respect to the first plane.

9 more elements

A sliding system, comprising:

at least a first member and a second member;
and
a restrictor,
at least the second member being movable relative to the first member between at least a first closed position and at least a first open position,
the second member having a first surface substantially aligned in a first plane, the first member having a second surface substantially aligned in a second plane, the second plane substantially parallel to the first plane,
the restrictor comprising a housing, a tab and a pushing element,
an entirety of the tab a one-piece unitary structure,
the tab pivotally mounted on the housing, whereby the tab is pivotally movable relative to the housing about a first pivot axis among at least a first pivot position, a second pivot position and a third pivot position, whereby the tab is movable from the first pivot position to the second pivot position by movement consisting solely of pivotally moving the entirety of the tab about the first pivot axis, the tab is movable from the second pivot position to the third pivot position by movement consisting solely of pivotally moving the entirety of the tab about the first pivot axis, and the tab is movable from the third pivot position to the first pivot position by movement consisting solely of pivotally moving the entirety of the tab about the first pivot axis,
an entirety of the housing to a second side of a first plane,
in the first pivot position:
a first portion of the tab is to a first side of the first plane, and a second portion of the tab is to the second side of the first plane, the first portion of the tab and the second portion of the tab together comprising an entirety of the tab, the first side of the first plane and the second side of the first plane on opposite sides of the first plane, and
the first portion of the tab prevents the second member from being moved from the first closed position to the first open position,
in the second pivot position:
a third portion of the tab is to the first side of the first plane, and a fourth portion of the tab is to the second side of the first plane, the third portion of the tab and the fourth portion of the tab together comprising an entirety of the tab, and
the third portion of the tab does not prevent the second member from being moved from the first closed position to the first open position,
in the third pivot position, an entirety of the tab is to the second side of the first plane,
with the tab in the second pivot position, moving the second member from the first closed position to the first open position causes the second member to contact the third portion of the tab, and thereby (1) causes the tab to move from the second pivot position to the third pivot position, and (2) causes the tab to come into contact along a first part of the first surface whereby the contact between the tab and the first part of the first surface prevents the tab from being moved toward the first pivot position by force exerted by the pushing element, and
with the tab in the third pivot position and the second member in the first open position, moving the second member to the first closed position allows the force exerted by the pushing element to move the tab from the third pivot position to the first pivot position.

15 more elements

A sliding system, comprising:

at least a first member and a second member;
and
a restrictor,
at least the second member being movable relative to the first member between at least a first closed position and at least a first open position,
the second member having a first surface substantially aligned in a first plane, the first member having a second surface substantially aligned in a second plane, the second plane substantially parallel to the first plane,
the restrictor comprising a housing, a tab and a pushing element,
the tab a one-piece unitary structure,
an entirety of the housing to a second side of a first plane,
the tab movable relative to the housing among at least a first tab position, a second tab position and a third tab position,
in the first tab position, a first portion of the tab is to a first side of the first plane, the first portion of the tab comprises a first extremity of the tab, the first extremity of the tab spaced from the first plane by a first distance, the first distance equal to or greater than respective distances that every other point on the tab is spaced from the first plane,
in the second tab position, the first extremity of the tab is a second distance from the first plane,
the second distance smaller than the first distance,
with the tab in the first tab position:
a second portion of the tab is to the second side of the first plane, the first portion of the tab and the second portion of the tab together comprising an entirety of the tab, the first side of the first plane and the second side of the first plane on opposite sides of the first plane, and
the first portion of the tab prevents the second member from being moved from the first closed position to the first open position,
with the tab in the second tab position:
a third portion of the tab is to the first side of the first plane, and a fourth portion of the tab is to the second side of the first plane, the third portion of the tab and the fourth portion of the tab together comprising an entirety of the tab, and
the third portion of the tab does not prevent the second member from being moved from the first closed position to the first open position,
in the third tab position, an entirety of the tab is to the second side of the first plane,
with the tab in the second tab position, moving the second member from the first closed position to the first open position causes the second member to contact the third portion of the tab protruding from the opening.

17 more elements

A sliding system, comprising:

at least a first member and a second member;
and
a restrictor,
at least the second member being movable relative to the first member between at least a first closed position and at least a first open position,
the second member having a first surface substantially aligned in a first plane, the first member having a second surface substantially aligned in a second plane, the second plane substantially parallel to the first plane,
the restrictor comprising a housing, a tab and a pushing element,
an entirety of the housing to a second side of a first plane,
the tab movable relative to the housing among at least a first tab position, a second tab position and a third tab position,
in the first tab position, a first portion of the tab is to a first side of the first plane, the first portion of the tab comprises a first extremity of the tab, the extremity of the tab spaced from the first plane by a first distance, the first distance equal to or greater than respective distances that every other point on the tab is spaced from the first plane,
in the second tab position, the first extremity of the tab is a second distance from the first plane,
the second distance smaller than the first distance,
in the third tab position, an entirety of the tab is to the second side of the first plane,
pressing the tab to move the tab from the first tab position to the third tab position and then releasing the tab causes the tab to move to the second tab position,
pressing the tab to move the tab from the second tab position to the third tab position and then releasing the tab causes the tab to move to the first tab position, and
the first portion of the tab comprises at least a first sloped surface that defines a sloped angle with respect to the first plane, the first sloped surface non-parallel with respect to the first plane and non-perpendicular with respect to the first plane.

12 more elements

A restrictor for restricting the movement of a sash between a first range of sash positions and a second range of sash positions, the restrictor comprising:

a housing;
a tab;
and
a pushing element, wherein:
the tab is moveable with respect to the housing between at least a first tab position relative to the housing and a second tab position relative to the housing, the first tab position relative to the housing differing from the second tab position relative to the housing,
the restrictor can be attached to a sash system in which:
the sash system comprises said sash and a first structure,
the sash comprises at least a first surface and a second surface,
the first surface is substantially aligned in a first plane,
the second surface is substantially aligned in a second plane,
the second plane is substantially perpendicular to the first plane,
the sash is movable relative to the first structure in a first direction perpendicular to said second plane in a range between a first extreme position and a second extreme position,
said sash is prevented from moving to any position relative to the first structure outside of said range between said first extreme position and said second extreme position, said first range of sash positions and said second range of sash positions within said range between said first extreme position and said second extreme position, said first extreme position at an end of said first range of sash positions most remote from the second range of sash positions, said second extreme position at an end of said second range of sash positions most remote from said first range of sash positions, each of said second range of sash positions spaced from each of said first range of sash positions,
in such a way that:
with the tab in the first tab position relative to the housing, movement of the sash within said first range of sash positions such that the second surface moves in said first direction brings the second surface into contact with an edge of the tab, and said contact prevents the second surface from moving past the tab into said second range of positions,
with the tab in the first tab position relative to the housing, the tab can be manually moved from the first tab position relative to the housing to the second tab position relative to the housing,
with the tab in the second tab position relative to the housing, and the sash in any position in the first range of sash positions, the sash can be moved such that the second surface moves in the first direction, such that the sash is moved into the second range of sash positions,
with the sash in any position in the second range of sash positions, the pushing element urges the tab so that the tab presses against the sash,
moving the sash in a second direction, said second direction opposite said first direction, from a position in the second range of sash positions to a position in the first range of sash positions moves the sash out of a range of positions where the tab presses against the sash, so that the pushing element is allowed to move the tab from the second tab position relative to the housing to the first tab position relative to the housing, and
said tab presses against the sash for an entirety of moving the sash in the second direction from the second extreme position through the second range of sash positions.

17 more elements

A restrictor for restricting the movement of a sash between a first sash position and a second range of sash positions, the restrictor comprising:

a housing;
a tab;
and
a pushing element, wherein:
the tab is moveable with respect to the housing between at least a first tab position relative to the housing and a second tab position relative to the housing, the first tab position relative to the housing differing from the second tab position relative to the housing, the restrictor can be attached to a sash system in which:
the sash system comprises said sash and a first structure,
the sash comprises at least a first surface and a second surface,
the first surface is substantially aligned in a first plane,
the second surface is substantially aligned in a second plane,
the second plane is substantially perpendicular to the first plane,
the sash is movable relative to the first structure in a first direction perpendicular to said second plane in a range between said first sash position to a second extreme position,
said sash is prevented from moving to any position relative to the first structure outside of said range between said first sash position and said second extreme position, said second range of sash positions within said range between said first sash position and said second extreme position, said second extreme position at an end of said second range of sash positions most remote from said first sash position, each of said second range of sash positions spaced from said first sash position,
in such a way that:
with the tab in the first tab position relative to the housing, the second surface is in contact with an edge of the tab, and said contact prevents the second surface from moving in said first direction past the tab into said second range of positions,
with the tab in the first tab position relative to the housing, the tab can be manually moved from the first tab position relative to the housing to the second tab position relative to the housing,
with the tab in the second tab position relative to the housing and the sash in the first sash position, the sash can be moved such that the second surface moves in the first direction, such that the sash is moved into the second range of sash positions,
with the sash in any position in the second range of sash positions, the pushing element urges the tab so that the tab presses against the sash,
moving the sash in a second direction, said second direction opposite said first direction, from a position in the second range of sash positions to the first sash position moves the sash out of a range of positions where the tab presses against the sash, so that the pushing element is allowed to move the tab from the second tab position relative to the housing to the first tab position relative to the housing, and
said tab presses against the sash for an entirety of moving the sash in the second direction from the second extreme position through the second range of sash positions.

16 more elements

A sliding system comprising:

a first structure;
a sash;
and
a restrictor,
the sash comprising at least a first surface and a second surface,
the first surface substantially aligned in a first plane,
the second surface substantially aligned in a second plane, the second plane substantially perpendicular to the first plane,
the sash movable relative to the first structure in a first direction perpendicular to said second plane in a range between a first sash position and a second extreme position,
said sash is prevented from moving to any position relative to the first structure outside of said range between said first sash position and said second extreme position,
a second range of sash positions within said range between said first sash position and said second extreme position, said second extreme position at an end of said second range of sash positions most remote from said first sash position, each of said second range of sash positions spaced from said first sash position,
the restrictor comprising:
a housing;
a tab;
and
a pushing element, wherein:
the tab is moveable with respect to the housing between at least a first tab position relative to the housing and a second tab position relative to the housing, the first tab position relative to the housing differing from the second tab position relative to the housing,
the restrictor is attached to the first structure,
with the tab in the first tab position relative to the housing, the second surface of the sash is in contact with an edge of the tab, and said contact prevents the second surface of the sash from moving in said first direction past the tab into said second range of positions,
with the tab in the first tab position relative to the housing, the tab can be manually moved from the first tab position relative to the housing to the second tab position relative to the housing,
with the tab in the second tab position relative to the housing and the sash in the first sash position, the sash can be moved such that the second surface moves in the first direction, such that the sash is moved into the second range of sash positions,
with the sash in any position in the second range of sash positions, the pushing element urges the tab so that the tab presses against the sash,
moving the sash in a second direction, said second direction opposite said first direction, from a position in the second range of sash positions to the first sash position moves the sash out of a range of positions where the tab presses against the sash, so that the pushing element is allowed to move the tab from the second tab position relative to the housing to the first tab position relative to the housing, and
said tab presses against the sash for an entirety of moving the sash in the second direction from the second extreme position through the second range of sash positions.

20 more elements

A restrictor for restricting the movement of a sash window between a first range of positions and a second range of positions, the restrictor comprising a housing, a tab moveable with respect to the housing between a first, restricting position in which the tab extends from a face of the housing, a second, retracted position in which at least a portion of the tab is located within the housing and a third, retracted position in which at least a portion of the tab is located within the housing, the tab being in a different position with respect to the housing in the second and third positions, and a pushing element that biases the tab to pivot relative to the housing, the restrictor being configured such that when the tab is in the first position an edge of the tab contacts a part of said sash window to prevent the sash window moving from said first range of positions to said second range of positions, and wherein the tab can be manually moved from the first position to the second position to enable the sash window to move relative to the housing into said second range of positions, and the tab moves from the second position to the third position before automatically moving to the first position when the sash window is returned to its first range of positions.

Dependencies are inferred from the claim text.

Facts

Application

15/691,010Filed 30 Aug 2017

Priority

GB 0811324.319 Jun 2008

Published

21 Dec 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification22 codes

E05C 3/12
Fastening devices with bolts moving pivotally or rotatively: with latching action
E05B 43/00
Time locks
E05B 65/0852
The bolts pivoting about an axis parallel to the wings: with a bolt under compression force
E05B 65/0864
For sliding wings: the bolts sliding perpendicular to the wings

Family

Application12/999,751Division · filed 17 Dec 2010

Application14/499,858Continuation · filed 29 Sep 2014

Application15/691,010Continuation

Application14/499,858Division

US 11,136,797 B2Related patent

US 2011/0113695 A1Published application

US 2015/0015000 A1Published application

US 8,881,461 B2Related patent

US 9,816,300 B2Related patent

US 2017/0362862 A1This patent

From the US filing history. Foreign family members aren’t listed.

Sash window restrictor

Life of this patent

Abstract

Claims75

Sash window restrictor

Life of this patent

Abstract

Claims75