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:
Feb. 01, 1977
Filed:
Mar. 03, 1975
Carlton E Sanford, East Providence, RI (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A push-button switch particularly adapted for use in a digital watch has an open-ended chamber formed at one end of an electrically conductive body and has a passage communicating with the chamber from the opposite end of the body, has electrically insulating spacer means secured in sealing relation to the open-chamber end supporting at fixed contact extending from the chamber through the open chamber end, has a resilient electrical contact supported on the spacer means within the chamber with the perimeter of the resilient contact in electrical engagement with the body and with a central portion of the electrical contact disposed in selected spaced relation to the fixed contact, has a flexible diaphragm secured between the resilient electrical contact and said body passage sealing the chamber opposite the open chamber end, and has a push-button operating member slidable in the body passage for selectively depressing the central portion of the resilient contact through the flexible diaphragm into electrical engagement with the fixed contact to close an electrical circuit, the body being adapted to be secured to a watch case by press-fitting into a watch case aperture.