41
Judith J Schweitzer: Knapsack with integral storage and carrying pouch. Pollock Vande Sande & Priddy, April 25, 1978: US04085873 (55 worldwide citation)

An improved knapsack or similar receptacle of thin, flexible material includes a patch of the material attached to a wall thereof. An opening through the patch permits the receptacle to be pushed through the opening to form a carrying and storage pouch for the receptacle. A closure is provided for t ...


42
Edward H Hagey: Hand grip for a racquet. Walter W Duft, July 20, 1999: US05924941 (53 worldwide citation)

This invention is a racquet handle configuration for a tennis racquet handle having a knob (50) to engage the forefinger, a protrusion (40) to engage the saddle formed between the forefinger and thumb of the user when using an Eastern forehand grip, and an extended rear surface to receive the thumb ...


43
Kent Yeh: Grip for sports racquet. Prince Sports Group, White & Case, April 29, 1997: US05624116 (53 worldwide citation)

A grip for a sports racquet, such as a tennis racquet, a squash racquet, a badminton racquet, or a racquetball racquet, comprises a thin layer of synthetic material and a porous backing material, e.g., felt. One or more longitudinal channels are formed in the thin synthetic layer to expose the backi ...


44
Adolf Dassler: Sports shoe. July 18, 1978: US04100685 (52 worldwide citation)

A sports shoe, particularly for tennis, has a flexible plastics outsole through which extend venting channels which open, on the interior of the shoe, in the region of a wearer's toes and forwardly of the ball of the foot. Channels can be provided through the bottom of the sole to terminate beneath ...


45
Jerry A Nuttall: Method and apparatus for radar measurement of ball in play. Matrix Engineering, Cahill Sutton & Thomas, August 11, 1992: US05138322 (51 worldwide citation)

A system for continuously and precisely measuring the positions of a generally symmetrical object, e.g., a tennis ball, in motion in a predefined three-dimensional region, e.g., a tennis court, which transmits multiple radar signals from first, second, and third, spaced antenna devices, respectively ...


46
Donald O Fareed: Forearm transaxial compression band. Michael G Petit, October 6, 1992: US05152302 (51 worldwide citation)

An adjustable strap or band adapted to be circumferentially fitted around the forearm to alleviate the symptoms of tennis elbow. The strap is a generally band-shaped device having opposing inwardly protruding means on its forearm contacting surface to direct transaxial compression against the radial ...


47
Terry L Sparks: Portable beach cache. Stetina and Brunda, October 8, 1991: US05054507 (51 worldwide citation)

A portable beach cache having a plurality of fabric panels and rigid support members arranged in a picture frame configuration for sheltering the user from wind and wind-blown debris, such as sand. Fold-out feet provide support in soft sand. A handle is provided to simplify carrying and a hook and l ...


48
Ferenc Kovacs, Laszl o Juhasz, Attila Szmejkal, Rudolf Liptay: Computer controller ball throwing machine. Handal & Morofsky, June 30, 1992: US05125653 (51 worldwide citation)

A new ball throwing machine for ejecting tennis balls comprising an adjustable ball throwing mechanism, a microcomputer controlling the throwing mechanism for programmed stroke sequences, and a remote control unit attached to the microcomputer and having a touch pad keyboard for direct assignment of ...


49
Alfonso Puyana: Therapeutic pressure strap. Brown & Martin, January 6, 1981: US04243028 (51 worldwide citation)

A therapeutic pressure strap primarily for the purpose of treating "tennis elbow" includes a flexible inelastic band having fastening means on both ends thereof for fastening around either the upper or lower extremities of a person, and includes a pressure concentrating portion on the inside of the ...


50
Froimson Avrum I: Therapeutic support device. Teare Teare & Sammon, February 5, 1974: US3789842 (50 worldwide citation)

A theropeutic support device of the type to be worn by a user, such as a tennis player, on his arm for relief of the pain resulting from the pathological lesion commonly referred to as 'tennis elbow.' The device includes a flexible, elongated band-like body formed from a substantially inelastic mate ...



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