Automatic ventilator with manual override
AssigneeTemp-Vent Corporation
InventorsPaul M. Sarazen, Jr., Dennis A. Beam, Jr.
Life of this patent
Estimating the term…
Abstract
A ventilator is selectively configured so that it can automatically open and close its louvers according to the temperature in its environment or have its louvers manually positioned in either the open or closed orientation. The louvers are disposed in an air passageway that is defined by a housing. A bimetallic coil acts through a drive element and a linkage element to automatically open and close the louvers of the ventilator. A pair of override members have respective handles accessible to the user. Manipulation of the override members enables the user to override the automatic drive element to manually open and close the louvers.
Claims25
An automatic temperature actuating ventilator with manual override, comprising:
- (a) a housing defining an air passageway therethrough;
- (b) a means for selectively opening and closing said air passageway depending upon the temperature of the surrounding atmosphere, said temperature dependent opening and closing means includes at least one louver disposed in said air passageway;
- and
- (c) a first override member configured and disposed with respect to said housing so that when said first override member is selectively placed in a first position relative to said housing, said temperature dependent opening and closing means is held in an open orientation relative to said passageway.
An automatic temperature actuating ventilator with manual override, comprising:
- (a) a housing defining an air passageway therethrough;
- (b) a means for selectively opening and closing said air passageway depending upon the temperature of the surrounding atmosphere, said temperature dependent opening and closing means includes at least one louver disposed in said air passageway;
- and
- (c) an override member configured and disposed with respect to said housing so that when said override member is selectively placed in a first position relative to said housing, said temperature dependent opening and closing means is thereby held in a closed orientation relative to said passageway.
A temperature actuating ventilator with manual override, comprising:
- (a) a housing defining an air passageway therethrough;
- (b) a first elongated louver and a second elongated louver, each said louver being disposed within said passageway, each said louver defining a pivoting axis along the length of said louver and being pivotally mounted to said housing about said respective pivoting axis;
- (c) a bimetallic coil having one end connected to said housing and a second end connected to at least one of said louvers;
- (d) an elongated linkage element pivotally connected at a first site to said first louver and pivotally connected at a second site to said second louver;
- (e) a first override member configured and disposed with respect to said housing so that when selectively placed in a first position relative to said housing each said louver is held in an open orientation relative to said passageway and when said first override member is selectively placed in a second position relative to said housing each said louver is released from said open orientation;
- (f) wherein said first override member includes a first main body and a first cam member extending from said first main body;
- (g) a first handle, said first main body and said first handle being configured to be connected together to become integral with one another in the assembled ventilator, said first handle being configured and disposed relative to said housing so as to be accessible manually by an operator of the ventilator;
- (h) a first guide forming part of one of said housing and said first override member;
- (i) a first slide forming part of the other one of said housing and said first override member, said first slide being slidably retained by said first guide and configured for selective slidable translation relative to said first guide so as to permit movement of said first override member between said first and second positions relative to said housing;
- (j) wherein said first louver defines a substantially flat portion and said first cam member of said first override member is configured to engage said flat portion of said first louver in a first asymmetrical orientation relative to said pivoting axis of said first louver to retain said first louver in an open orientation relative to said passageway when said first override member is disposed in said first position relative to said housing.
Dependencies are inferred from the claim text.