Resilient door knob
OwnerRandall C. Labruminventor
Life of this patent
Estimating the term…
Abstract
A resilient door knob utilizes both a spring-loaded internal housing and a resilient foam knob so that the doorknob absorbs shock when the door is swung against a wall, or someone strikes the doorknob. Another important feature is that the knob comes in sets of knobs of different colors or configurations such that one knob can be pulled off (or slit of if necessary) of the shaft housing and replaced with another one of a different color in the event, for example, the room is re-painted.
Claims7
A resilient doorknob assembly for engaging the doorlatch structure of a door having a transverse shaft which operates a latch element when rotated, said doorknob comprising:
- (a) a knob body;
- (b) a shaft mounting which mounts said knob body and slidably engages said shaft in operation;
- (c) limit means defining limits to the travel of said knob body as it travels toward and away from said door;
- and
- (d) bias means biasing said knob body away from said door such that upon said doorknob impacting an obstacle, it will yield axially on the end of said shaft against said bias means.
A resilient doorknob assembly for engaging the doorlatch structure of a door having a transverse shaft which operates a latch element when rotated, said doorknob comprising:
- (a) a knob body;
- (b) a shaft mounting which mounts said knob body and slidably engages said shaft;
- (c) limit means defining limits to the travel of said knob body as it travels toward and away from said door;
- (d) bias means biasing said knob body away from said door such that upon said doorknob impacting an obstacle, it will yield axially on the end of said shaft against said bias means;
- and
- (e) said shaft mount comprising a longitudinally extended cylindrical housing passing over one end of said shaft and including a first plate fixed to said housing and slidably fitted over said shaft, and a second plate mounted to said shaft and rotatably fitted within said housing, such that said plates define said limit means and cause rotation of said doorknob to rotate said shaft.
A resilient doorknob assembly for engaging the doorlatch structure of a door having a transverse shaft which operates a latch element when rotated, said doorknob comprising:
- (a) a knob body;
- (b) a shaft mounting which mounts said knob body and slidably engages said shaft;
- (c) limit means defining limits to the travel of said knob body as it travels toward and away from said door;
- (d) bias means biasing said knob body away from said door such that upon said doorknob impacting an obstacle, it will yield axially on the end of said shaft against said bias means;
- (e) said knob body including a bulbous hand-gripped portion in addition to said shank, and at least a portion of said bulbous portion remote from said door comprising a resilient material;
- and
- (f) said portion of said bulbous portion remote from said door comprising a hemispherical mass of resilient foam.
Dependencies are inferred from the claim text.