Anti-ligative doorknob
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United States of America Patent
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Mar 31, 2015
Grant Date -
Aug 28, 2014
app pub date -
May 5, 2014
filing date -
Jan 29, 2009
priority date (Note) -
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Abstract
An anti-ligative ergonomic type door-knob primarily of the institutional type, essentially serving to defeat the effort of a temporarily mentally-depressed room occupant from succeeding in committing self-hanging via contrived ensnaring by which to secure a cord like hanging-noose. Generic-variant embodiments of my anti-ligative doorknob are set forth, including both a circular and semi-circular escutcheon-plate for I-shaped V-shaped Y-shaped X-shaped fin-levers, and also a non-finned hemispherical iteration. The novel critical minimum approximate 40-degree anti-ligative principle of my LIFESTAR™ doorknobs reliably prevents a person ensnaring any heretofore problematically hazardous to portion of the door-knob assembly, while my optionally cooperating door latchbolt is formed to a matching critical minimum approximate 40-degree anti-ligative tri-beveled latchbolt as well. Further suicide-deterrence is achieved by effectively submerging the doorknob into the door escutcheon-plate, thereby leaving virtually no declivity by which a suicidal-person can secure any manner of self-inflicted hanging-cord.
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