Abstract: A hanger assembly for supporting a spring from a crib having a plurality of closed loop brackets mounted on each corner post of the crib and a Z-shaped hanger mounted at each corner of the spring frame. One end of the hanger extends outwardly from the spring frame so as to mate with the associated bracket. The outer end has a depending lip which extends below the bracket when the spring is hung in place. Accordingly, the spring must be lifted vertically and moved horizontally in order to remove the hanger from the bracket.

Abstract: A midsize tennis racket is disclosed which utilizes two arcuate bridges, inverted with respect to the arc of the head of the racket, and includes grommets at opposite ends of the head in order to shorten the length of the center main string so as to provide more uniform power response in the central hitting area. A selected number of the center main strings are crisscrossed between the arcuate bridges and their support locations on the frame. The construction provides the playability of a small headed racket while maintaining the stability of a large headed racket. Further embodiments are disclosed which effectively shorten the length of the main strings by effectively creating two arcuate bridges. In one embodiment, the arcuate bridges are formed by elongated projections which have boreholes at their distal ends. In a further embodiment, inelastic loops are used to form the arcuate bridges.

Abstract: Automotive spark plug having an injection molded body which includes the central electrode and connnecting cap and the grounded electrode. In one embodiment, the grounded electrode is secured to a threaded metal cap which is mounted on a band integral with the molded body, and which has support legs extending into the molded body. In a second embodiment, the molded body is appropriately threaded and the grounded electrode extends into the interior radius of the threads so as to provide a proper ground.

Abstract: A method for packaging a playing ball so as to provide a partially exposed surface of the ball which comprises the steps of imprinting selected indicia on a heat shrinkable plastic film loop, placing the loop about the ball in frictional contact with a portion of the surface of the ball, applying heat to the loop and the ball to shrink said loop so as to wrap a circumferential section of the ball, and removing the heat and permitting the loop to cool about the ball in its shrunken state. If the ball is partially deflated, the loop is placed about the ball and the ball is inflated until frictional contact between the ball and loop occurs with subsequent heat application.

Abstract: An apparatus wherein there is provided a source of fiber forming material, with said fiber forming material being pumped into a die having a plurality of spinnerets about its periphery. The die is rotated at a predetermined adjustable speed, whereby the liquid is expelled from the die so as to form fibers. It is preferred that the fiber forming material be cooled as it is leaving the holes in the spinnerets during drawdown. The fibers may be used to produce fabrics, fibrous tow and yarn through appropriate take-up systems. The pumping system provides a pumping action whereby a volumetric quantity of liquid is forced into the rotational system independent of viscosity or the back pressure generated by the spinnerets and the manifold system of the spinning head, thus creating positive displacement feeding. Positive displacement feeding may be accomplished by the extruder alone or with an additional pump of the type generally employed for this purpose.

Abstract: A marker holder is supported within the frame and comprises a plurality of rows of marker trays extending across the width of the holder and extending in a stair-step configuration from the bottom to the top of the holder. Each tray includes a plurality of wells at the front of the tray and a plurality of first arcuate indentations at the rear of the tray mating with said wells. Substantially all of trays include a plurality of second arcuate indentations at the rear of the tray which extend above the base of the wells of the adjacent upper tray and align with the wells of the adjacent upper tray. The distance between the extremities between said first and second arcuate indentations being greater than the diameter of said well so as to provide a shelf adjacent the top of said well. There is also disclosed support means for maintaining at least one marker holder or a row of marker holders at an inclined angle when placed on a flat surface.

Abstract: A method of and apparatus for controlling air flow through the medium of a circular frame structure upon which is pivotally mounted a plurality of shutters, the frame being adapted to be secured to a ceiling of a room or space in which ceiling an opening has been cut to accommodate air flow and movement of the pivotally mounted shutters. The circular frame structure and shutter assemblage is substantially flush with the plane of the ceiling and a housing and ventilating fan is disposed in an attic or space above the opening in the ceiling. The ventilating fan above the shutters is rotated in a direction to draw air from the room upwardly into the attic space for dissipation through conventional air vents located in the roof or wall region of an attic space.

Abstract: A marker caddy for holding and displaying a plurality of markers having different cap designs which may be at both ends of the marker, different barrel diameters and heights including a base mounted on wheels, upright support members attached to said base and a frame pivotally mounted at the upper end of the support members. A marker holder is supported within the frame and comprises a plurality of rows of marker trays extending across the width of the holder and extending in a stair-step configuration from the bottom to the top of the holder. The marker is adjustably mounted to said holder so as to be positionable at any selected angle. Each tray includes a plurality of wells at the front of the tray and a plurality of first arcuate indentations at the rear of the tray mating with said wells.

Abstract: A dampening mechanism for sports implements such as tennis rackets comprising an elongated vibratable member formed of an elastomeric, energy absorbing material. The vibrational member is integral with a grommet strip which mates with the underside of the yoke of the racket and the string holes therethrough. The unit is held firmly to the frame, with the vibrational member fixed within the throat of the frame below the yoke, by the strings when the racket is strung.

Abstract: A child's car seat is disclosed which consists of two basic parts, the first comprising a base, frame, and back, and the second consisting of a seat removably secured to the base adjacent the back whereby, when the seat is secured to the base, a child's car seat is provided for infants and small toddlers and, when the seat is removed from the base, a booster seat is provided for larger children. The seat includes a split shield secured to the seat portion so as to be used in both the car seat and booster seat configuration. A harness, including a crotch strap, is provided for use when the car seat configuration is used.

Abstract: A low voltage lighting system is provided which comprises at least one stepping stone, and, preferably, a series of stepping stones, with each stepping stone having at least one recessed channel in the upper face thereof, and a light source removably inserted within the recessed channel. The light source comprises a flexible, substantially transparent tube and low voltage lights within the tube. Means are disclosed for connecting the light source to a power source in a selective or predetermined manner.

Abstract: A tap connector for use with a range of conductor diameters having a yoke comprising a pair of opposed plates extending angularly from a pad. A flat spring is attached to the terminal ends of each of the plates and extends towards the pad and is spaced from the inner face of the plates a predetermined distance. The springs terminate in an arcuate configuration so as to accommodate the conductor under a predetermined constant pressure. The pad is connected to a ground cable. High amperages caused by lightning or short circuits create an electromechanical force which drives the terminal ends of the springs toward each other so as to provide higher mechanical pressure about the conductor under such fault conditions.

Abstract: Disclosed herein is a device for sealing portions of an overlapped pair of single or composite films by contacting or facing an appropriately heated sealing surface of a heat sealing member. The heat sealing member is provided with the sealing surface in a part of its outer surface and with a sealed chamber therewithin in the vicinity of the sealing surface. The sealed chamber contains under decompression working liquid for evaporating and generating high-temperature condensable gas by being heated. The heat sealing member further has a heat source in the interior or the exterior thereof adjacent to at least a part of the sealed chamber for heating the working liquid.

Abstract: A tray for holding sutures, vessel loops, umbilical tapes, and the like, having a base with a substantially flat upper surface and a lip on one edge thereof for hooking onto a Mayo stand. The flt upper surface of the tray has secured thereto one side of a loop and hook fastener substantially adjacent each side thereof. A plurality of transparent covers are hinged to said base and have the other side of the loop and hook fastener secured thereto in mating fashion with the side of the fastener secured to the upper surface of the tray. Tabs extend outwardly from the tray so that sutures or the like may be looped about the tabs, with the ends protruding at the opposite end. When the transparent covers are folded down, the sutures are removably held by the loop and hook fastener.

Abstract: A two-piece softball or baseball includes a molded core and a molded cover including simulated stitching having protrusions and indentations integral with the cover material. Stitch holes adjacent the simulated stitching extend through the cover to the spherical core to simulate the depth of the stitching holes in a standard stitched leather covered ball.

Abstract: A softball having a core and a cover wherein the ball has a circumference of approximately 12 inches, a weight of 175 to 178 grams, a coefficient of restitution of approximately 0.478 and a compression from about 0.010 to 0.014 inches, wherein said core has a density from about 15.5 to 16.5 pounds per cubic foot, and a hardness from about 72 to 78 on the shore A scale, said core being formed from a cellular polymeric material. The core is surrounded by a cover having a specific gravity of about 1.2, a thickness from about 0.035 inches to 0.060 inches and a hardness from about 78 to 90 on the Shore A scale. The cover is formed from a vinyl resin, a phthalate compound, stabilizers and a titanium dioxide dispersion.

Abstract: A collapsible sawhorse having a bench and four legs extending outwardly therefrom at a fixed angle. All of the legs are hinged to the bench so as to be movable between an upright position and a collapsed, substantially flat position. An arm is pivotally mounted to the outer legs at opposite corners of the sawhorse and each arm terminates in an angular finger which mates with a U-shaped bracket extending from plates mounted to directly opposite legs. The sawhorse is secured in its upright position when the fingers mate with the U-shaped bracket and may be folded when the fingers are released from the bracket. A tool holder is hinged to the legs a predetermined distance below the bench so as to be collapsible with the basic structure.