Abstract: A receiver for a lidar system. The receiver comprises a monolithic block of optically transmissive material, the block shaped to define a planar light receiving surface, a first reflective surface and a second reflective surface positioned adjacent to the light receiving surface. The surfaces are positioned such that light from a distant on-axis source passing through the light receiving surface passes through the block to the first reflective surface and is reflected thereby towards the second reflective surface and in turn reflected thereby to pass through a receiving aperture formed in the first reflective surface and to come to a focus at or after the receiving aperture.

Abstract: Method and actuator system for a Kellyguard valve disposed in a drill string. The actuator system includes a sleeve that includes a cavity; an actuator disposed inside the cavity and configured to rotate the Kellyguard valve; first and second external regions of the sleeve having plural holes configured to receive a medium under pressure for actuating the actuator; a ring provided around the first and second external regions of the sleeve and configured to be fixed, the ring having first and second internal grooves facing the first and second external regions, respectively; and first and second seals provided inside the first and second grooves, respectively, at least one of the first and second seals being configured to not touch the first or second external regions of the sleeve when in a collapsed state and to touch the first or second external regions when in an inflated state.

Abstract: The disclosed system includes a two-phase cooling apparatus configured for cooling an array of LED dies.

Abstract: A high intensity lamp is described herein. The lamp comprises a LED array emitting a light and a two-phase cooling apparatus. The LED array includes a plurality of LEDs. The LEDs are arranged in close proximity so that a luminous emittance from a emitter area of the LED array is at least 1000 lumens per square centimeter. The two-phase cooling apparatus is thermally coupled to the LED array.

Abstract: Method and actuator system for a Kellyguard valve disposed in a drill string. The actuator system includes a sleeve that includes a cavity; an actuator disposed inside the cavity and configured to rotate the Kellyguard valve; first and second external regions of the sleeve having plural holes configured to receive a medium under pressure for actuating the actuator; a ring provided around the first and second external regions of the sleeve and configured to be fixed, the ring having first and second internal grooves facing the first and second external regions, respectively; and first and second seals provided inside the first and second grooves, respectively, at least one of the first and second seals being configured to not touch the first or second external regions of the sleeve when in a collapsed state and to touch the first or second external regions when in an inflated state.

Abstract: The disclosed system includes a two-phase cooling apparatus configured for cooling an array of LED dies.

Abstract: Pennants of high quality have first and second exposed layers preferably with a stiffener layer disposed therebetween and bonded thereto. Appliqués are applied to the first layer, the appliqués being in the form of embroidered images of graphic art works of photographic images. Direct embroidery can also applied to the first layer. The pennant in one embodiment has a front and back layer and in another either embodiment, an appliqué with a photographic image is fixed with stitching, preferably in the form of embroidery, around the periphery of the appliqué. The pennant may be mounted in a rigid frame having a triangular shape or rectangular shape.

Abstract: Pennants of high quality have first and second exposed layers preferably with a stiffener layer disposed therebetween and bonded thereto. Appliqués are applied to the first layer, the appliqués being in the form of embroidered images of graphic art works or photographs. Direct embroidery is also applied to the first layer. In an embodiment of the invention the embroidered images are embroidered reproductions of photographs which may be applied to the first layer with the pennant either having or not having other layers. The pennant may be mounted in a rigid frame having a triangular shape or rectangular shape.

Abstract: Pennants of high quality have first and second exposed layers preferably with a stiffener layer disposed therebetween and bonded thereto. Appliqués are applied to the first layer, the appliqués being in the form of embroidered images of graphic art works or photographs. Direct embroidery is also applied to the first layer. In an embodiment of the invention the embroidered images are embroidered reproductions of photographs which may be applied to the first layer with the pennant either having or not having other layers. The pennant may be mounted in a rigid frame having a triangular shape or rectangular shape.

Abstract: A three-dimensional amusement device for transforming the outer appearance of a video terminal thus enhancing its appeal and improving the state of mind of the person requiring its use, particularly when that person is a child.

Abstract: A three-dimensional amusement device for transforming the outer appearance of a video terminal thus enhancing its appeal and improving the state of mind of the person requiring its use, particularly when that person is a child.