A system comprising at least one liquid, the system able to accommodate the thermal expansion/compression of such liquid over a given temperature range without leaking, bursting, and without the generation of bubbles, by adapting its liquid containing chamber volume to the ambient temperature.

A system comprising at least one liquid, the system able to accommodate the thermal expansion/compression of such liquid over a given temperature range without leaking, bursting, and without the generation of bubbles, by adapting its liquid containing chamber volume to the ambient temperature.

A pendant for a necklace has a body with an aperture, and a hole extending into the body from the aperture. The hole terminates at a closed bottom in the body. A body coupling is adjacent the aperture. A lid can be attached to and detached from the body. The lid also can be mounted to the necklace to support the body therefrom. The lid has a lid coupling to couple to the body coupling to close the aperture. The lid coupling can be uncoupled from the body coupling to provide access to the hole. A container is removably mounted in the body. The container has a retained position where the container is in the hole in the body when the lid is mounted to the body. The container also has a released position with the lid detached such that the container is at least partially exposed from the body.

A jewelry piece having a body or housing that defines a cavity sized and shaped to removably receive an interchangeable ornament, a cover or back connected to the body, such that the jewelry piece may be opened or closed, and a locking mechanism to secure the ornament in the jewelry piece. The body and cover mechanically engage when the jewelry piece is closed to secure the ornament without the need for excessive force or an additional tool. The mechanical engagement is accomplished by interlocking mating elements and a spring-loaded lever.

A jewelry piece having a body or housing that defines a cavity sized and shaped to removably receive an interchangeable ornament, a cover or back connected to the body, such that the jewelry piece may be opened or closed, and a locking mechanism to secure the ornament in the jewelry piece. The body and cover mechanically engage when the jewelry piece is closed to secure the ornament without the need for excessive force or an additional tool. The mechanical engagement is accomplished by interlocking mating elements and a spring-loaded lever.

A jewelry piece having a body or housing that defines a cavity sized and shaped to removably receive an interchangeable ornament and a cover or back connected to the body, such that the jewelry piece may be opened or closed. The body and cover magnetically and mechanically engage when the jewelry piece is closed to secure the ornament without the need for excessive force or an additional tool. The magnetic engagement is accomplished by magnets that are located opposite each other when the jewelry piece is closed. The mechanical engagement is accomplished by interlocking mating elements that combine to define a bail when the jewelry piece is closed.

Provided is a wearable device for displaying translucent stones and the like. The wearable device comprises a base, a back plate, a bezel and a locking element. The base comprises a cavity, at least one base locking element a recess comprising a recess void and an illumination assembly in the cavity wherein the illumination assembly comprises an illuminator capable of emitting light. The back plate is reversibly mountable on the base. The back plate comprises at least one back plate locking element. The back plate locking element is reversibly engageable with the base plate locking element. A tab is provided on the back plate which is receivable by the recess. The tab comprises a tab void which is alignable with the recess void. An illumination window in the back plate allows light to transmit through said illumination window. The back plate also comprises at least one securing recess. The bezel is reversibly mountable on the back plate. The bezel comprises a viewing window and a securing tab wherein the securing tab is received by the securing recess. A locking element extends through the aligned tab void and recess void.

A surveillance pendant assembly for discretely recording audio and video includes a personal electronic device and a pendant that is attachable to a necklace for wearing on a user. A video camera is integrated into the pendant to capture video footage of the user's environment. A microphone is integrated into the pendant to record audio of the user's environment. Each of the video camera and the microphone are in remote communication with the personal electronic device for storing video and audio in the personal electronic device.

A low-power mobile telephony alert system and an alert device. The alert device has a communication interface configured to establish a low-power communication link with a mobile device for transmitting status data to the mobile device, and a telephony-enabled communication linked with the mobile device for initiating telephony from the mobile device while in locked mode. The alert device can initiate a status check request to third party contact devices before escalating to connect to the mobile device from locked mode to initiate telephony to an emergency service. The alert device is compact and can be incorporated into an article of jewelry or a wearable loop member.

A personal ornament that includes: a base portion that includes a pair of right-and-left base-side engaging ring portions, and fixes and holds a gemstone; and a frame portion that includes a pair of right-and-left frame-side engaging ring portions to be coupled to the base-side engaging ring portions, and that supports the base portion, the base portion and the gemstone being supported to be swingable with respect to the frame portion. The personal ornament also includes a protective member that protects, from an outside, at least the frame-side engaging ring portions, and coupling parts of the base-side engaging ring portions with respect to the frame-side engaging ring portions.