Patent ID: 11950665
Assignee: JERRY GUIRE
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A pendant comprising:
a face plate including:
a circumferential wall extending from a rear side of the face plate in a thickness direction perpendicular from the face plate and including a beveled edge surface;
a first circumferential step extending from an interior of the circumferential wall toward a center of the face plate;
a second circumferential step extending from the interior of the circumferential wall toward the center of the face plate to define an opening display portion on a front side of the face plate and a seat on a rear side, the second circumferential step extending further to the interior than the first circumferential step;
a plurality of key portions on the circumferential wall protruding toward the interior of the face plate and disposed below the first circumferential step, each of the plurality of key portions offset by a predetermined angle;

a face plate bail including:
a base extending outwardly from the face plate and including a varying width;
two protruding portions protruding in the thickness direction;
a rod disposed in holes of the two protruding portions;
a bushing on the rod between the two protruding portions;
a latch fixed on the bushing between the two protruding portions; and
a bump disposed on a narrower portion of the base than the two protruding portions and closer to the face plate than the two protruding portions;

a back plate including:
a first circumferential wall defining an inner chamber;
a second circumferential wall having a diameter greater than the first circumferential wall and a height less than that of the first circumferential wall to define a beveled edge surface;
an O-ring resting on the beveled edge surface;
wherein an outer portion of the first circumferential wall above the second circumferential wall includes a plurality of grooves, wherein the plurality of grooves includes key entrances offset by the predetermined angle;
wherein each of the plurality of grooves has a first portion in which the thickness decreases from the key entrance and a second portion connected to the first portion, the second portion having a greater thickness than a point of connection with the first portion,

a back plate bail including:
a base extending outwardly from the second circumferential wall of the back plate and including a varying width;
two protruding portions protruding outwardly from the base positioned to provide a seat location for the latch;
a bump disposed closer to the back plate than the two protruding portions;

wherein the key portions on the circumferential wall of the face plate are positioned to match the positions of the key entrances of the plurality of grooves on the back plate,
wherein when the key portions on the face plate are positioned over the key entrances, and the face plate is rotated with respect to the back plate so that the key portions rest on a top surface of the second portion of the grooves, the pendant enters a primary locked position,
wherein when the latch is positioned between the two protruding portions of the back plate and resting on the seat location, the pendant enters a secondary locked position.