Planar ring and blister diaphragm for improved diaphragm-type pressure sensor

• US 20060236773A1
• Filed: 06/21/2006
• Published: 10/26/2006
• Est. Priority Date: 07/19/1999
• Status: Abandoned Application

• Current Assignee: Nate Coleman
• Original Assignee: Nate Coleman
• Inventors: Coleman, Nate
• Application Number:
  US11/472,637
• Publication Number:
  US 20060236773A1
• Time in Patent Office: Days
• US Class Current: 73/715
• CPC Class Codes: G01L 9/0039 using photoelectric means

Abstract

A Pressure Sensing Apparatus is disclosed. Also disclosed is a diaphragm-type pressure sensor comprising a planar ring with a blister formed on said planar ring. The planar ring diaphragm-type pressure sensor is designed to function as an integral part of the overall larger pressure sensing apparatus, although it also has other uses. The planar ring diaphragm type pressure sensor may have a blister which is either larger or smaller than the width of the planar ring depending on the intended use. Furthermore, the blister on the planar ring may be light reflective.

Claims

1. In a diaphragm-type pressure sensor, an improved diaphragm, comprising:

a planar ring; and

a blister formed on said diaphragm within said planar ring.

2. The sensor of claim 1, wherein said diaphragm defines a first face and a second face, said blister defining a concave portion of said second face.

3. The sensor of claim 2, wherein said concave portion of said second face is light-reflective.

4. The sensor of claim 1, wherein said planar ring defines a width and said blister defines a diameter, said width being greater than said diameter.

5. The sensor of claim 1, wherein said planar ring defines a width and said blister defines a diameter, said width being smaller than said diameter.