×

Variable analog output pressure switch

  • US 7,255,009 B1
  • Filed: 03/27/2006
  • Issued: 08/14/2007
  • Est. Priority Date: 03/27/2006
  • Status: Expired due to Fees
First Claim
Patent Images

1. A pressure switch comprising:

  • a diaphragm for detecting change in pressure;

    a plunger coupled to said diaphragm, wherein said plunger is depressed due to an applied pressure on said diaphragm; and

    a light source located on one side of said plunger and a photodetector located on an opposite side of said plunger to detect an amount of light from the light source,wherein said switch provides an analog output varying according to the amount of light detected by said photodetector.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×