1
Walter Stewart, Nicholas Jones, Wolfger Schneider: Helmet system including at least three accelerometers and mass memory and method for recording in real-time orthogonal acceleration data of a head. Johns Hopkins University, Pillsbury Madison & Sutro, November 9, 1999: US05978972 (145 worldwide citation)

A system designed to measure and record in real time data relating to translational and angular acceleration of an individual's head during normal sporting activity. One embodiment of the device includes at least three orthogonal accelerometers mounted within a sports helmet together with means for ...


2
Gus A Rush III: Sports helmet. Cushman Darby & Cushman, July 30, 1996: US05539935 (78 worldwide citation)

A signalling device is installed in headwear such as an athletic helmet and includes triaxially sensitive sensors for detecting impacts above a selected magnitude and for providing a signal characteristic of the magnitude and direction of an impact.


3
Nicole Durr: Sports helmet. McHale & Slavin, September 10, 2002: US06446270 (68 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 ...


4
Thad M Ide, Ralph J Infusino, Nelson Kraemer, Christopher R P Withnall, Timothy D Bayne: Sports helmet. Riddell, McDermott Will & Emery, July 10, 2007: US07240376 (63 worldwide citation)

The present invention provides a sports helmet, such as a football, hockey, lacrosse or baseball helmet. The helmet includes a shell having an outer surface, a front region, a rear region, and two side regions. A jaw flap extends from each ear flap towards the front region of the shell, wherein the ...


5
Aldean Burdett Bassette, Nicole Durr: Sports helmet. A V E, McHale & Slavin, February 3, 1998: US05713082 (62 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 ...


6
William E Lancellotti: Sports helmet with face mask. Salter & Michaelson, November 18, 1980: US04233687 (60 worldwide citation)

A combination sports helmet and face mask construction is disclosed in which a mask of grid-like configuration having a peripheral base portion is attached to the helmet in a novel manner. In one embodiment of the invention, the attachment means includes a plurality of spaced blocks each including a ...


7
Richard M Greenwald, Jeffrey J Chu: Power management of a system for measuring the acceleration of a body part. Riddell, McDermott Will & Emery, April 28, 2009: US07526389 (59 worldwide citation)

The present invention provides an apparatus and method for determining the magnitude of linear and rotational acceleration of an impact to a body part. The apparatus can be used with protective sports equipment, such as a sports helmet, wherein the apparatus includes a battery, a number of accelerom ...


8
Montie M Barnes Jr: Cap for sports helmet. Julian Flehr Hohbach Test Albritton & Herbert Caplan, May 28, 1996: US05519895 (54 worldwide citation)

A baseball type cap for over a conventional sports helmet (e.g., for bicyclists). An elastic band is sewn or otherwise affixed to the bottom edge of the cap. The band fits against the bottom edge of the helmet to hold the cap in place. When the cap is removed from the helmet, it can be worn on the h ...


9
Leonard F Gaines: Sports helmet braced for protection of the cervical spine. June 23, 1992: US05123408 (53 worldwide citation)

A flexible support brace transfers excessive back motion of a sports helmet through a flexible interlinked brace, which floats freely between two spaced circumferential spans on the helmet during normal play but which engage with the helmet and collapses to a braced configuration if the helmet is ex ...


10
Gus A Rush III: Sports helmet capable of sensing linear and rotational forces. Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro, April 22, 1997: US05621922 (51 worldwide citation)

A signalling device is installed in headwear, such as an athletic helmet, and includes sensing devices for detecting linearly and rotationally directed impacts above a selected magnitude. The sensing devices trigger the signalling device so as to produce a perceivable signal, thereby alerting observ ...