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US 4,732,417 AGranted
Door handle
OwnerAnthony L. Yanginventor
Life of this patent
Estimating the term…
Abstract
A C-shaped door handle for replacing a conventional rotatable doorknob has mounting brackets at each end for attaching to a flat surface and a drive shaft adapted to engage a conventional latch-operating mechanism. The handle has an internal pivoted grip lever actuated by pulling the handle. Motion from the grip lever is transmitted to the rotary drive shaft by a rack and pinion transmission.
Claims1
A door handle comprising
- a C-shaped handle having upper and lower ends,
- a first mounting member comprising a hollow casing located at one end of the C-shaped handle having a planar mounting surface adapted to abut and engage a flat vertical surface of a door,
- a grip lever pivotally mounted with the C-shaped handle and biased outwardly from said handle,
- a rotatable shaft extending forwardly from the planar mounting surface of the first mounting member and being adapted to engage an actuation mechanism of a conventional door latch, and
- actuating means housed within the first mounting member operably connection the grip lever and the rotatable shaft such that movement of the grip lever toward the C-shaped handle rotates the shaft, said actuating means including a lever arm activated by the grip lever and a rack and pinion mechanism operatively connected to the lever arm.
2 more elements
Dependencies are inferred from the claim text.