The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 1977
Filed:
Mar. 03, 1975
Carlton E Sanford, East Providence, RI (US);
Laurence P Kleven, South Attleboro, MA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A push-button switch having an electrically conductive body forming a chamber, having a fixed contact supported in the chamber, having a passage communicating with the chamber, having a flexible diaphragm sealing said chamber from said passage, and having an operating member slidably movable in said passage for depressing the diaphragm, has a flat spiral spring disposed within the chamber with the perimeter of the spring in electrical engagement with the body and with a central portion of the spring disposed in selected spaced relation to the fixed contact between the fixed contact and the diaphragm for permitting movement of the operating member to depress the central portion of the flat spiral spring through the flexible diaphragm into electrical engagement with the fixed contact to close an electrical circuit between the fixed contact and the body.