Abstract: A remote interface for smart electronic hand-held devices is provided. The remote interface includes a touchpad having a sensitive surface for detecting and/or registering fingertip touch, tap, click, and gesture movements, a control module for wirelessly transmitting detected fingertip touch, tap, click, and gesture movements and generating a cursor on the hand-held device that tracks the detected fingertip touch, tap, click, and gesture movements, and a band for removably attaching the touchpad to a surface. The touchpad is rotatably coupled to a body of the remote interface and includes a bezel for rotating the touchpad about the body. An indicator indicates the directionality of the touchpad so as to provide visualization of the orientation and directionality of the touchpad relative to the graphic user interface of the hand-held device.

Abstract: A remote interface for smart electronic hand-held devices is provided. The remote interface includes a touchpad having a sensitive surface for detecting and/or registering fingertip touch, tap, click, and gesture movements, a control module for wirelessly transmitting detected fingertip touch, tap, click, and gesture movements and generating a cursor on the hand-held device that tracks the detected fingertip touch, tap, click, and gesture movements, and a band for removably attaching the touchpad to a surface. The touchpad is rotatably coupled to a body of the remote interface and includes a bezel for rotating the touchpad about the body. An indicator indicates the directionality of the touchpad so as to provide visualization of the orientation and directionality of the touchpad relative to the graphic user interface of the hand-held device.

Abstract: A remote interface for smart electronic hand-held devices is provided. The remote interface includes a touchpad having a sensitive surface for detecting and/or registering fingertip touch, tap, click, and gesture movements, a control module for wirelessly transmitting detected fingertip touch, tap, click, and gesture movements and generating a cursor on the hand-held device that tracks the detected fingertip touch, tap, click, and gesture movements, and a band for removably attaching the touchpad to a surface. The touchpad is rotatably coupled to a body of the remote interface and includes a bezel for rotating the touchpad about the body. An indicator indicates the directionality of the touchpad so as to provide visualization of the orientation and directionality of the touchpad relative to the graphic user interface of the hand-held device.

Abstract: A centrifuge test tube cap assembly for sealing a thin walled test tube used primarily with a vertical tube rotor. The cap assembly is designed for convenient and easy removal from the test tube through the use of internal means which activates the direct sealing and unsealing of the cap with respect to the test tube. The mechanism of the tube cap provides for convenient removal of the cap assembly from the test tube which is necessary in order to insert or remove the liquid to be subjected to centrifugation.

Abstract: A test tube cap assembly for centrifuge rotor tubes. A stem member slidably moves within a crown member to exert a direct force on a bushing to securely grip the upper portion of a test tube located within the crown member. The stem member and the bushing have generally mating frustoconical surfaces to provide a wedging action on the upper portion of the test tube. The wedging action serves to not only seal the tube, but also support the upper end of the test tube by restraining the centipetal side of the tube from pulling away from the cap. The operation of the cap assembly is enhanced by the hydraulic forces exerted from within the test tube by the contained liquid.