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3297 results about "Detent" patented technology

A detent is a device used to mechanically resist or arrest the rotation of a wheel, axle, or spindle. Such a device can be anything ranging from a simple metal pin to a machine. The term is also used for the method involved.

Touch sensitive apparatus and method for improved visual feedback

A touch sensitive apparatus and method of operation to improve visual feedback and visual perception of tactile input to an operator. The apparatus includes a touch screen device or display having a touch overlay, a processor and stored program instructions in a memory in which a three-dimensional graphical image, such as a key element, is created in the apparatus and shown on the display as an input device or keypad to the processor. Each key element includes a beveled surface surrounding a flat surface. When a displayed key element is touched by a probe, such as a finger, the screen area about the displayed key element and the finger, visually enlarges or "splats" confirming the selection of the particular key. Concomitantly or simultaneously, the key element detents or depresses within the key pad, changes color and bevel size further verifying the key selection to the operator thereby creating a sense of key movement and visual perception of tactile input to the operator aiding in the operation of the key pad. The simultaneous visual key enlargement, visual detenting and change in key color and bevel size upon key selection in a touch sensitive apparatus improves the feedback to the operator in the selection and confirmation of a key element actuated by the operator.

Intervertebral prosthesis

An expandable intervertebral prosthesis includes a bone graft implant member dimensioned for insertion within an intervertebral space defined between adjacent vertebrae, thereafter adapted to vertically elevate and expand a plurality of barbs into the surrounding bone. The expandable intervertebral prosthesis has a tubular outer body portion having an axial bore with an enlarged proximal end and an exterior surface dimensioned to fit snugly within the space, and a barbed expansion cylinder slidably or rotatably mounted within the axial bore. The tubular outer body portion of the expandable intervertebral prosthesis has a plurality of longitudinal slots or holes in the wall thereof to allow the expansion and retraction of the expansion cylinder's barbs into or out of the surrounding bone. The barbs on the expansion cylinder may be elastically deformed from a normal, retracted configuration to a locking, splayed configuration wherein the outer ends of the barbs extend outwardly through the slots and exterior surface of tubular outer body to penetrate the surrounding bone as the expansion cylinder is moved. The expansion cylinder and, in one embodiment, the exterior surface of the tubular outer body portion, have a plurality of barbs disposed in circumferentially spaced relation about the body and positioned in various angles and positions respect to the axial bore. In another embodiment, the intervertebral prosthesis includes an elevating cylinder rotatably mounted within a frangible tubular outer body portion. The elevating cylinder has one or more detent positions that expand and vertically elevate the frangible tubular outer body portion of the intervertebral prosthesis body upon rotation thereof.
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