US 6,802,543 B1Granted

Door handle

AssigneeAAON, Inc.

InventorStephen E. Wakefield

Life of this patent

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Abstract

A door handle system for a door employing a plurality of door handles that operate in unison. Each door handle comprised of a lever with a perpendicular shaft, and the shaft extending through sequentially and securing together the following additional elements of the door handle to insure that the latch mechanism rotates together with the lever: a sealing washer, snap bushing, handle opening through the door, second bushing, collar and latch mechanism. An arm provided on each latch mechanism that attaches to a common bus bar. An outwardly extending tongue provided on each latch mechanism for engaging either a door facing or a tongue receiving bracket attached to the door facing to latch the door in a closed position. A lock bracket on the door with a lock opening to align with a lock opening provided the lever for padlocking the lever closed.

Claims2

Dependent claims

A door handle assembly comprising:

a plurality of handles, each handle provided with a shaft, a latch mechanism attached to each said shaft so that each shaft extends through a handle opening of a door and the latch mechanism and associated handle are on opposite sides of the door and said handle and latch mechanism rotate in unison with each other,
each said latch mechanism provided with an arm that attaches to a common bus bar so that all the latch mechanisms work in unison,
each said latch mechanism provided with a tongue for engaging a door frame for the door as a means of latching the door shut,
a longitudinal axis of each shaft is approximately perpendicular to a longitudinal axis of its associated handle,
each arm is provided on its associated latch mechanism so that a longitudinal axis of the arm is approximately perpendicular to the longitudinal axis of the shaft,
each tongue is provided on its associated latch mechanism so that a longitudinal axis of the tongue forms an obtuse angle with the longitudinal axis of its associated arm, the longitudinal axis of the tongue is approximately perpendicular to the longitudinal axis of the shaft, and the longitudinal axis of the tongue is located in a plane that is approximately parallel to a plane in which the arm is located.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/280,234Filed 25 Oct 2002
Granted: 12 Oct 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

E05C 9/02
Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing: with one sliding bar for…
E05B 13/002
Devices preventing the key or the handle or both from being used: locking the handle
E05C 9/028
With one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in…:…
E05B 63/04
Locks or fastenings with special structural characteristics: for alternative use on the right-hand or left-hand side of wings