US 5,272,840 A · Security gate with walk through feature

Abstract

A gate is provided for use as a closure device within a doorway and includes an L-shaped frame member which may be positioned in stationary relationship to the doorway and a panel member which is pivotally mounted to the frame member. The panel member carries a latching mechanism including a latch for engaging a lower horizontal extension of the frame member to prevent pivotal movement of the panel portion. In addition, a contact member is provided for contacting a surface of the doorway when the latch member is engaged with the frame. A release lever is provided for moving the contact member out of engagement to allow pivotal movement of the panel relative to the frame. A locking member is provided for preventing operation of the lever such that the locking member must be operated simultaneously with the lever in order to release the contact member.

Claims24

Dependent claims

A closure device for use in a doorway defined by opposing first and second doorway surfaces, said closure device comprising:

a frame member adapted to be positioned within said doorway and defining a frame member closure area,
a panel portion positioned within said frame member closure area,
hinge means mounting said panel portion to said frame member for pivotal movement,
first engagement means attached to said frame member for engaging said first doorway surface,
second engagement means attached to said frame member for engaging said second doorway surface to thereby cooperate with said first engagement means to hold said frame member in a predetermined position within said doorway,
a contact member supported by said panel portion for engaging said second doorway surface in a first position of said contact member and said contact member being movable relative to said panel portion to a second position out of contact with said second doorway surface,
a lever mounted for movement relative to said panel portion, and
connection means defining a pivotal connection between said contact member and said lever such that movement of said lever causes said contact member to move between said first and second positions.

5 more elements

A closure device for use in a doorway defined by opposing first and second doorway surfaces, said closure device comprising:

a frame member including a vertical portion and a horizontal portion,
a panel portion including at least a vertical edge and a horizontal edge extending substantially parallel to said vertical portion and said horizontal portion, respectively,
hinge means for mounting said panel portion to said frame member for pivotal movement whereby said panel portion may pivot relative to said horizontal portion,
first engagement means attached to said frame member for engaging said first doorway surface,
second engagement means attached to said frame member for engaging said second doorway surface to thereby cooperate with said first engagement means to hold said frame member in a predetermined position within said doorway, and
latch means mounted to said panel portion for engaging said horizontal portion of said frame member to prevent relative movement between said panel portion and said frame member, said panel portion being movable in a vertical direction to move said latch means out of engagement with said horizontal portion to permit relative pivotal movement between said panel portion and said frame member.

3 more elements

A closure device for use in a doorway defined by opposing first and second doorway surfaces, said closure device comprising:

a frame member adapted to be positioned within said doorway, said frame member including a vertical portion and a horizontal portion to form an L-shaped structure defining a frame member closure area,
a panel portion positioned within said frame member closure area, said panel portion including a horizontal edge adjacent to said horizontal portion of said frame member,
hinge means formed on said panel portion for mounting said panel portion to said frame member for pivotal movement, said hinge means including means defining upper and lower substantially oval apertures receiving said vertical portion of said frame member whereby said vertical portion is movable within said apertures in a horizontal direction,
first engagement means attached to said vertical portion of said frame member for engaging said first doorway surface,
second engagement means attached to said horizontal portion of said frame member for engaging said second doorway surface to thereby cooperate with said first engagement means to hold said frame member in a predetermined position within said doorway,
a contact member supported by said panel portion for engaging said second doorway surface in a first position of said contact member, said contact member being movable relative to said panel portion to a second position out of contact with said second doorway surface,
a lever mounted to said panel portion at a pivot point such that said lever is pivotally movable relative to said panel portion, said lever including a hand aperture for receiving an operator's hand and means defining a slot,
connection means defining a pivotal connection between said contact member and said lever such that movement of said lever causes said contact member to pivot relative to said panel portion and said lever and to move between said first and second positions,
a pawl member mounted to said panel portion and resiliently biased toward said lever, said pawl member engaging said slot in said lever to lock said contact member in said first position, and
latch means mounted to said panel portion for engaging said horizontal portion to prevent relative movement between said panel portion and said frame member, said panel portion being movable to position said horizontal edge at an acute angle relative to said horizontal portion of said frame member whereby said latch means is moved upwardly out of engagement with said horizontal portion to permit relative movement between said panel portion and said frame member.

7 more elements

Dependencies are inferred from the claim text.

Security gate with walk through feature

Life of this patent

Security gate with walk through feature

Life of this patent

Abstract

Claims24