Pressure activated switching device - Patent Review 5962118

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Pressure activated switching device

United States Patent

5962118

Link to this page

http://www.wikipatents.com/5962118.html

Inventor(s)

Burgess; Lester E. (Swarthmore, PA)

Abstract

A pressure sensitive sparkless switching device includes a layer of piezoresistive cellular polymer foam, at least two conductive layers, and an insulative spacer element having at least one opening. When pressure is applied to the device the piezoresistive foam disposes itself through the opening of the spacer element and makes electrical contact between the conductive layers. The resistance of the piezoresistive foam varies with the amount of pressure applied to provide an analog as well as on-off function. The device may also provide multiple switching, and shear detection capabilities.

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Reference	Relevancy	Comments	Reference	Relevancy	Comments
5656344 Sawa et al. Aug,1997	Your vote accepted [0 after 0 votes]		5510812 O'Mara Apr,1996	Your vote accepted [0 after 0 votes]
5477217 Bergan Dec,1995	Your vote accepted [0 after 0 votes]		5431571 Hanrahan et al. Jul,1995	Your vote accepted [0 after 0 votes]
5264824 Hour Nov,1993	Your vote accepted [0 after 0 votes]		5132583 Chang Jul,1992	Your vote accepted [0 after 0 votes]
5089672 Miller Feb,1992	Your vote accepted [0 after 0 votes]		5072079 Miller Dec,1991	Your vote accepted [0 after 0 votes]
5066835 Miller et al. Nov,1991	Your vote accepted [0 after 0 votes]		5060527 Burgess Oct,1991	Your vote accepted [0 after 0 votes]
5027552 Miller et al. Jul,1991	Your vote accepted [0 after 0 votes]		5023411 Miller et al. Jun,1991	Your vote accepted [0 after 0 votes]
5019797 Marstiller et al. May,1991	Your vote accepted [0 after 0 votes]		5019950 Johnson May,1991	Your vote accepted [0 after 0 votes]
5010774 Kikuo et al. Apr,1991	Your vote accepted [0 after 0 votes]		4977386 Lodini Dec,1990	Your vote accepted [0 after 0 votes]
4972054 Miller et al. Nov,1990	Your vote accepted [0 after 0 votes]		4964302 Grahn et al. Oct,1990	Your vote accepted [0 after 0 votes]
4954673 Miller Sep,1990	Your vote accepted [0 after 0 votes]		4951985 Pong et al. Aug,1990	Your vote accepted [0 after 0 votes]
4920241 Miller Apr,1990	Your vote accepted [0 after 0 votes]		4908483 Miller Mar,1990	Your vote accepted [0 after 0 votes]
4900497 Lodini Feb,1990	Your vote accepted [0 after 0 votes]		4876419 Lodini Oct,1989	Your vote accepted [0 after 0 votes]
4876420 Lodini Oct,1989	Your vote accepted [0 after 0 votes]		4845323 Beggs Jul,1989	Your vote accepted [0 after 0 votes]
4837548 Lodini Jun,1989	Your vote accepted [0 after 0 votes]		4785143 Miller Nov,1988	Your vote accepted [0 after 0 votes]
4661664 Miller Apr,1987	Your vote accepted [0 after 0 votes]		4640137 Trull et al. Feb,1987	Your vote accepted [0 after 0 votes]
4620072 Miller Oct,1986	Your vote accepted [0 after 0 votes]		4584324 Bauman et al. Apr,1986	Your vote accepted [0 after 0 votes]
4559254 Suzuki Dec,1985	Your vote accepted [0 after 0 votes]		4497989 Miller Feb,1985	Your vote accepted [0 after 0 votes]
4481815 Overton Nov,1984	Your vote accepted [0 after 0 votes]		4349710 Miller Sep,1982	Your vote accepted [0 after 0 votes]
4301040 Berbeco Nov,1981	Your vote accepted [0 after 0 votes]		4273974 Miller Jun,1981	Your vote accepted [0 after 0 votes]
4231901 Berbeco Nov,1980	Your vote accepted [0 after 0 votes]		4200777 Miller Apr,1980	Your vote accepted [0 after 0 votes]
4172216 O'Shea Oct,1979	Your vote accepted [0 after 0 votes]		4143367 Schestag Mar,1979	Your vote accepted [0 after 0 votes]
4137116 Miller Jan,1979	Your vote accepted [0 after 0 votes]		4121488 Akiyama Oct,1978	Your vote accepted [0 after 0 votes]
4051336 Miller Sep,1977	Your vote accepted [0 after 0 votes]		4014217 Lagasse et al. Mar,1977	Your vote accepted [0 after 0 votes]
3859485 Blinkilde et al. Jan,1975	Your vote accepted [0 after 0 votes]		3693026 Miller Sep,1972	Your vote accepted [0 after 0 votes]
3668337 Sinclair Jun,1972	Your vote accepted [0 after 0 votes]		3634334 Burgess Jan,1972	Your vote accepted [0 after 0 votes]
3321592 Miller May,1967	Your vote accepted [0 after 0 votes]		3315050 Miller Apr,1967	Your vote accepted [0 after 0 votes]
2951817 Myers Sep,1960	Your vote accepted [0 after 0 votes]
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