Door latch assembly
AssigneeBauer Products, Inc.
InventorBRUCE C. BACON
Life of this patent
Estimating the term…
Abstract
A door latch assembly includes a housing, an inside and outside handle operably coupled with the housing, and a latch plunger. A latch cam is operably coupled with the inside and outside handles, and the latch cam further includes a crank arm slidably disposed against an inclined surface of a plunger leg operably coupled to the latch plunger. A biasing member urges the latch plunger to an extended position, wherein rotation of the inside or outside door latch handle in a first direction rotates the crank arm of the latch cam and displaces the plunger leg of the latch plunger and the latch plunger to a retracted position against the urging of the biasing member.
Claims23
A closable door latch assembly for an egress/ingress door pivotable between an open position and a closed position, the closable door latch assembly comprising:
- an inner housing cover and an outer housing cover in juxtaposed relation with one another to define a housing;
- a rotatable inside door latch handle operably coupled with the housing;
- a rotatable outside door latch handle operably coupled with the housing and the rotatable inside door latch handle;
- a latch plunger moveable between an extended position and a retracted position within an elongated recess, the latch plunger further comprising a main body and a plunger leg operably coupled with main body, the plunger leg extending outside of the elongated recess and having an inclined surface;
- a latch cam operably coupled with each of the rotatable inside door latch handle and the rotatable outside door latch handle, the latch cam further comprising a crank arm slidably disposed against the inclined surface of the plunger leg;
- and
- a biasing member mounted within the housing urging the latch plunger to an extended position;
- wherein rotation of either of the rotatable inside door latch handle or the rotatable outside door latch handle in a first direction rotates the crank arm of the latch cam and displaces the plunger leg of the latch plunger and the latch plunger to the retracted position against the urging of the biasing member;
- and
- wherein the latch plunger comprises a main body received within the elongated recess, and the crank arm and plunger leg are disposed in a vertical plane adjacent one or both of an interior surface of the outer housing cover and an interior surface of the inner housing.
A door assembly comprising an inner screen door detachable coupled with an exterior door, wherein each of the inner screen door and exterior door are pivotable between an open position and a closed position, the exterior door having a latch retention member disposed on an interior surface thereof and the inner screen door having a latch assembly comprising:
- a housing;
- a rotatable inside door latch handle operably coupled with the housing;
- a rotatable outside door latch handle operably coupled with the housing and the rotatable inside door latch handle;
- a latch plunger moveable between an extended position and a retracted position within an elongated recess, the latch plunger further comprising a main body and a plunger leg integrally formed on the main body and extending outside of the elongated recess, the plunger leg further comprising an inclined surface;
- a latch cam operably coupled with each of the rotatable inside door latch handle and the rotatable outside door latch handle, the latch cam further comprising a crank arm slidably disposed against the inclined surface of the plunger leg, wherein the crank arm and the plunger leg are disposed in a vertical plane adjacent one or both of an interior surface of the outer housing cover and an interior surface of the inner housing;
- and
- a biasing member mounted within the housing urging the latch plunger to an extended position;
- wherein rotation of either of the rotatable inside door latch handle or the rotatable outside door latch handle in a first direction rotates the crank arm of the latch cam and displaces the plunger leg of the latch plunger and the latch plunger to the retracted position against the urging of the biasing member;
- and
- wherein when the inner screen door and the exterior door are in juxtaposed relation with one another, the latch retention member engages the outside door latch handle and rotates the outside door latch handle in the first direction and displaces the latch plunger to the retracted position.
A door latch assembly comprising:
- a housing;
- an inside and outside handle operably coupled with the housing;
- a latch plunger moveable between an extended position and a retracted position within an elongate recess, the latch plunger further comprising a plunger leg integrally formed with latch plunger, the plunger leg extending outside of the elongated recess and having an inclined surface;
- a latch cam operably coupled with the inside and outside handles, the latch cam further comprising a crank arm slidably disposed against the inclined surface of the plunger leg, wherein the crank arm and the plunger leg are disposed in a vertical plane adjacent one or both of an interior surface of the outer housing cover and an interior surface of the inner housing;
- and
- a biasing member urging the latch plunger to an extended position;
- wherein rotation of the inside or outside door latch handle in a first direction rotates the crank arm of the latch cam and displaces the plunger leg of the latch plunger and the latch plunger to a retracted position against the urging of the biasing member.
A closable door latch assembly for an egress/ingress door pivotable between an open position and a closed position, the closable door latch assembly comprising:
- an inner housing cover and an outer housing cover in juxtaposed relation with one another to define a housing;
- a rotatable inside door latch handle operably coupled with the housing;
- a rotatable outside door latch handle operably coupled with the housing and the rotatable inside door latch handle;
- a latch plunger moveable between an extended position and a retracted position within an elongated recess, the latch plunger further comprising a plunger leg extending outside of the elongated recess;
- a latch cam operably coupled with each of the rotatable inside door latch handle and the rotatable outside door latch handle, the latch cam further comprising a crank arm slidably disposed against the plunger leg, wherein the crank arm and the plunger leg are disposed in a vertical plane adjacent one or both of an interior surface of the outer housing cover and an interior surface of the inner housing;
- and
- a biasing member mounted within the housing urging the latch plunger to an extended position;
- wherein rotation of either of the rotatable inside door latch handle or the rotatable outside door latch handle in a first direction rotates the crank arm of the latch cam and displaces the plunger leg of the latch plunger and the latch plunger to the retracted position against the urging of the biasing member.
The closable door latch assembly of claim 23, wherein the latch plunger comprises a main body received within an elongated recess disposed within the outer housing cover, and the plunger leg is disposed adjacent an interior surface of the outer housing cover.
Dependencies are inferred from the claim text.