Pressure activated switching device

Details Pressure activated switching device Pressure activated switching device

1997-10-23

1999-06-08

Krynski, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428465, 428464, 428901, 200 84B, B32B 900

Patent

active

059103558

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.

REFERENCES:
patent: 2951817 (1960-09-01), Myers
patent: 3315050 (1967-04-01), Miller
patent: 3321592 (1967-05-01), Miller
patent: 3634334 (1972-01-01), Burgess
patent: 3668337 (1972-06-01), Sinclair
patent: 3693026 (1972-09-01), Miller
patent: 3859485 (1975-01-01), Blinkilde et al.
patent: 4014217 (1977-03-01), Lagasse et al.
patent: 4051336 (1977-09-01), Miller
patent: 4121488 (1978-10-01), Akiyama
patent: 4137116 (1979-01-01), Miller
patent: 4143367 (1979-03-01), Schestag
patent: 4172216 (1979-10-01), O'Shea
patent: 4200777 (1980-04-01), Miller
patent: 4273974 (1981-06-01), Miller
patent: 4349710 (1982-09-01), Miller
patent: 4481815 (1984-11-01), Overton
patent: 4497989 (1985-02-01), Miller
patent: 4620072 (1986-10-01), Miller
patent: 4640137 (1987-02-01), Trull et al.
patent: 4661664 (1987-04-01), Miller
patent: 4785143 (1988-11-01), Miller
patent: 4837548 (1989-06-01), Lodini
patent: 4845323 (1989-07-01), Beggs
patent: 4876419 (1989-10-01), Lodini
patent: 4876420 (1989-10-01), Lodini
patent: 4900497 (1990-02-01), Lodini
patent: 4908483 (1990-03-01), Miller
patent: 4920241 (1990-04-01), Miller
patent: 4951985 (1990-08-01), Pong et al.
patent: 4954673 (1990-09-01), Miller
patent: 4964302 (1990-10-01), Grahn et al.
patent: 4972054 (1990-11-01), Miller et al.
patent: 4977386 (1990-12-01), Lodini
patent: 5010774 (1991-04-01), Kikuo et al.
patent: 5019797 (1991-05-01), Marstiller et al.
patent: 5019950 (1991-05-01), Johnson
patent: 5023411 (1991-06-01), Miller et al.
patent: 5027552 (1991-07-01), Miller et al.
patent: 5060527 (1991-10-01), Burgess
patent: 5066835 (1991-11-01), Miller et al.
patent: 5072079 (1991-12-01), Miller
patent: 5089672 (1992-02-01), Miller
patent: 5132583 (1992-07-01), Chang
patent: 5264824 (1993-11-01), Hour
patent: 5477217 (1995-12-01), Bergan
patent: 5510812 (1996-04-01), O'Mara

Affiliated with

Also associated with

Rating

Pressure activated switching device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure activated switching device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure activated switching device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1682388