Tony Verna: Systems, devices and methods for reviewing selected signal segments. ScanZ Communications, Covington & Burling, January 20, 2004: US06681398 (53 worldwide citation)

The present invention provides on-field sports officials and other similarly situated users with systems, methods and portable devices for monitoring, reviewing and evaluating sports, entertainment, news and other events and occurrences in nearly real time. These systems, methods and devices for exa ...

William Walter Bohnhoff: Subsurface fluid drainage and storage systems. Invisible Structures, December 15, 1998: US05848856 (52 worldwide citation)

There is provided by the invention a subsurface drainage system which promotes efficient and controlled subsurface drainage of fluids, such as irrigation water, applied to the surface of land such as a football field. A drain core apparatus is provided that provides rapid infiltration and later move ...

James T Hayden: Football helmet with breakaway face mask. Wood Herron & Evans, August 14, 1990: US04947490 (52 worldwide citation)

A football helmet is provided with a releasable face mask which is attached to the helmet by hook-and-pile fastening means. Abutment means prevent relative movement of the face mask in response to a force which impinges on the mask in a direction toward the wearer's face, but permit the mask to brea ...

Lemelson Jerome H, Elfman Allan M: Ball for target games. November 4, 1975: US3917271 (52 worldwide citation)

Structures are provided in missiles for use in toy target games and the like having a multitude of upstanding hook-like formations secured thereto and operable to retain the missiles against a target surface. In one form, a missile in the shape of a hollow spheroid is moulded of plastic and includes ...

William F Wilke, Alan G Hutcheson, Richard D Ross: Electronic game apparatus and method. Phillips Moore Weissenberger Lempio & Majestic, June 6, 1978: US04093223 (51 worldwide citation)

An electronic apparatus for simulating athletic contests is disclosed. A specific embodiment of the apparatus is a football game including a simulated playing field, wherein the play execution and play outcome for each play is displayed in real time. Two opposing players are alternatively on defense ...

Raymond F Tonkel: Cushioning and impact absorptive means for footwear operative component. Kangaroos U, Paul M Denk, February 21, 1989: US04805319 (51 worldwide citation)

This invention pertains to the encapsulation of a cellular insert, formed of various woven cellular components, or fabricated to a grooved design formed of a series of linearly woven strands, each of which presents various voids or cavities within their formed structure, and then foamed in place wit ...

Johnny B Bilberry: Neck support. John M Harrison, February 26, 1985: US04501023 (50 worldwide citation)

A neck support for use in athletic contact sports such as football, which includes a resilient, yieldable collar having at least one front support extending downwardly from the collar beneath an athlete's chin, and attached to his shoulder harness or pads. The collar intercepts the chin, and the col ...

John N Handy: Football having raised ribs. Mattel, Roy A Ekstrand, July 28, 1992: US05133550 (50 worldwide citation)

A football-shaped game ball is formed of a resilient foam material and defines an oblate spheroidal outer surface having generally pointed ends. A plurality of rib portions extend outwardly from the outer surface and define nonsymmetrical cross-sections. In the preferred embodiment shown, the rib po ...

Thad M Ide, Ralph J Infusino, Nelson Kraemer, Christopher R P Withnall, Timothy D Bayne: Football helmet. Riddell, Wallenstein Wagner & Rockey, August 30, 2005: US06934971 (49 worldwide citation)

A new football helmet includes: a jaw flap attached to the ear flap of the helmet, and the jaw flap overlies the sides of the lower jaw of football player; and a face guard connector which includes a shock absorbing member.

Aldean Burdett Bassette, Nicole Durr: Sports helmet. A V E, McHale & Slavin, February 3, 1998: US05713082 (49 worldwide citation)

An improved helmet constructed with a rigid shell having a soft outer covering which absorbs impacts and disperses energy thereby protecting the wearer of the helmet, as well as protecting the impacting object. When used for contact sports such as football, this covering is effective in preventing i ...

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