Abstract: A spark plug includes a body and a center electrode. The body includes a first end, a second end, an insulating portion and a shell portion. The shell portion includes an exterior threaded section, a nut section below the threaded section, an electrically conductive, axially elongated firing ring above the threaded section and terminating at an upper surface. The center electrode extends through the body and includes a terminal end and a firing end. The firing end extends beyond the second end of the body and includes a plurality of tines. Each tine includes a first section and a second section. The first section extends radially from the firing end. The second section extends axially toward the upper surface of the firing ring and terminates at a tip. The insulating portion electrically isolates the shell portion from the center electrode.

Abstract: A spark plug includes a body and a center electrode. The body includes a first end, a second end, an insulating portion and a shell portion. The shell portion includes an exterior threaded section, a nut section below the threaded section, an electrically conductive, axially elongated firing ring above the threaded section and terminating at an upper surface. The center electrode extends through the body and includes a terminal end and a firing end. The firing end extends beyond the second end of the body and includes a plurality of tines. Each tine includes a first section and a second section. The first section extends radially from the firing end. The second section extends axially toward the upper surface of the firing ring and terminates at a tip. The insulating portion electrically isolates the shell portion from the center electrode.

Abstract: The present invention is an adjustable standing muscular releasing and stretching exercise device for a user. The device has a vertical linear column base, a support handle that can be vertically moved and attached along the linear base, a pair of adjustable releasing rollers on a horizontal bar with a roller connection that is movably connected to the linear base, a horizontal floor base that is attached to and supports the linear base, a raised non-skid foot platform that is attached to and extends over said floor base and an adjustable non-skid calf step perpendicularly and slidably attached to said foot platform.

Abstract: An improved spark plug having a one-piece electrode of a particular alloy material, terminating in a firing end that has a plurality of extending tines, each tine having a downwardly end that is within a prescribed distance from the plug's firing ring.

Abstract: An improved spark plug of the type comprising a concentric arrangement of a center electrode, a multi-finned insulator comprised of zirconia surrounding the center electrode, and a metallic shell surrounding the insulator. The improvement comprises a cap and fire points attached to the end of the center electrode, the cap extending outward from the center electrode to the proximity of the base or an extension to the base so that the electrode extends a greater distance within the cylinder chamber, and apertures within the extended base.

Abstract: A counterforce spring assembly for printed circuit board test fixtures is provided. A number of counterforce spring assemblies are provided in an array between the top plate and probe plate of the test fixture. Each counterforce spring assembly includes a support cup residing in an aperture through the probe plate. A compression spring resides in the support cup and provides spring-biasing of the top plate to the probe plate during the UUT testing cycle. Each counterforce spring assembly includes a circumferential flange to limit downward travel of the top plate toward the probe plate. Each assembly is small enough to fit between probe apertures corresponding to component leads of the UUT. The counterforce spring assemblies can be freely placed underneath the top plate to provide even spring-biasing thereof to prevent bowing and bending of the top plate which often causes errors in the testing of printed circuit boards.

Abstract: The invention relates to a leg support for use on towless water skis, the water skis each defining an elongated buoyant thick ski and an orifice on the top surface of the ski leading to a foot cavity. The leg support is adapted to be positioned adjacent to the orifice on the ski top surface. The leg support comprises a lower rod and an upper rod, pivotally interconnected by an intermediate hinge. The lower rod is pivotally fixed to the ski top surface, while the upper rod is pivotally fixed to a loop band, the latter for being releasably tightened around the calf and tibia of a ski user. Each of the pivotal connections are hinges which permit a movement only in a plane perpendicular to the ski footrest and parallel to the longitudinal axis of the ski. This restriction in movement prevents the user from loosing his stability, for he cannot rotate his ankle in another plane than the above-mentioned plane, and he can thus prevent the drifting of his skis with more ease.

Abstract: A pair of buoyant skis are used by a person over a body of water for forward motion thereover by reciprocating motion of the skis in alternate fashion. Each ski is a mirror image of the other and includes an elongated, box-like hull, inwardly lined with buoyant material and defining a water-tight body which is generally right-triangular in cross-section and defines a top deck, a port wall transverse to the top deck and an upwardly inclined starboard wall joining the bottom edge of the port wall with the starboard edge of the top deck. A foot well is formed within the hull body intermediate the bow and stern. The two walls of the hull progressively converge from the stern to the bow. The port wall is straight throughout its length while the starboard wall is longitudinally straight except for a curved bow section which joins both walls. The bottom edge of the port wall forms a longitudinally extending straight keel and additional longitudinal keels protrude from the starboard wall.

Abstract: An apparatus is disclosed for the feeding of oval-shaped open end wire links seriatim, from an open-link feeding bar magazine, to a groove in a movable link-forming slide tool. Subsequent upward movement of the link-forming slide tool carries the open oval-shaped wire link into internal surface contact with a fixed position link center-forming anvil. Closed chain links or findings are mounted over the ends of the open wire links at this point, and further upward movement of the link-forming slide tool results in the closure of the previously open wire link to a desired configuration such as oval or round, and its assembly with the preformed ornamental objects is completed. The present device may be employed in various power driven modes.