Abstract: This removable snap-on plastic device can be affixed to a surfboard leash allowing the open outer sleeve portion to clamp onto any adjacent section of the leash to prevent it from unraveling, representing significant improvements over other similar devices. This device does not interfere with the performance of a surfer nor affect the performance of the surfboard leash.

Abstract: This removable snap-on plastic cylinder with a half pipe barrel molded parallel can be affixed to a surfboard leash or any power cord, rope, etc., allowing the open barrel side to clamp onto any adjacent section of the leash or cord to prevent it from unraveling. This device represents significant improvements over other similar devices. This device does not interfere with the performance of a surfer and does not affect the performance of the surfboard leash.

Abstract: A battery for use with a modular battery assembly is provided. The battery includes two poles, with each pole including a dual terminal. Each dual terminal includes a first connector and a second connector. The battery is adapted to be mounted in either of a first housing, with a wiring board having a prewired circuit located thereon connected to slide-in terminals arranged on the wiring board, and a second housing without a prewired circuit. The slide-in terminals arranged on the wiring board are adapted to be located in complementary positions to the first connectors on the battery such that when the battery is slidably received in the first housing, the first connectors are adapted to be received in the complementarily positioned slide-in terminals, and when the battery is located in the second housing, the second connectors are connectable using jumpers such that the battery is adapted to be used interchangeably in the first and second housings.

Abstract: An array of optical fiber bundles includes one or more diffractive elements positioned above gaps between adjacent bundles. Incident radiation produces mathematically determinative diffraction patterns on the respective input faces of the adjacent bundles. Radiation intensity values for areas between and along the abutting edges of adjacent optical fiber bundles can be determined using the diffraction patterns. These intensity values can be assigned to other pixels so that precise, seamless images can be reconstructed.

Abstract: An array of tapered optical fiber bundles having input faces for receiving incident radiation thereon are staggered with respect to one another such that an input face edge portion of a tapered optical fiber bundle overlies a portion of an input face of an adjacent optical fiber bundle so as to occlude the overlaid portion from incident radiation. Optical fiber bundles may be staggered in various configurations, including repeating patterns.

Abstract: A tool for turning an elongate pipe is disclosed. The tool comprises a base and a drive wheel mounted for rotation on the base. The drive wheel has a cylindrical outer surface may include a plurality of projections extending radially outward from the outer surface of the first drive wheel. The projections extend past the edge of the base. In use, the projections contact a portion of the outer surface of an elongate pipe and turn the pipe with the rotation of the drive wheel. A guide is also mounted for movement on the base. The guide may be a pair of guide arms pivotally mounted on the base. Each guide arm has a free end and a guide roller is mounted for free rotation at each free end of each guide arm. Each guide arm is pivotable to a position wherein the guide rollers hold the elongate pipe against the projections on the outer surface of the first drive wheel.