Push-pull or twist door knob/handle mechanism

Details Push-pull or twist door knob/handle mechanism Push-pull or twist door knob/handle mechanism

1990-04-27

1991-06-25

Nicholson, Eric K.

Closure fasteners

Bolts

Sliding

292170, E05C 112

Patent

active

050261010

ABSTRACT:
An improved door knob/handle mechanism is described which opens, i.e. unlatches, the door through the mechanism of pushing, pulling or twisting the door knob/handle. When the door panel is to be opened in a direction so as to swing-away from the user, the door is opened either by pushing on the knob/handle, or twisting it. When the door panel is to open in a direction by swinging towards the user, the door is opened either by pulling the knob/handle or twisting it. The improved mechanism facilitates the opening of a door by those individuals who may be handicapped, suffer from arthritis, or have their hands filled while attempting to open the door, either inwardly, or outwardly.

REFERENCES:
patent: 397226 (1889-02-01), Aguero
patent: 618708 (1897-01-01), Merwin
patent: 908361 (1908-12-01), Vredenburgh
patent: 1991822 (1935-02-01), Snipes
patent: 3385622 (1968-05-01), Winger
patent: 3490803 (1970-01-01), Rollins
patent: 3582121 (1969-09-01), Rollins
patent: 4728133 (1988-03-01), Valley
patent: 4777810 (1988-10-01), Webster

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