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:
Aug. 31, 1976
Filed:
Mar. 31, 1975
William J Lynn, Groveland, MA (US);
Richard E Seeger, Jr, Topsfield, MA (US);
Chomerics, Inc., Woburn, MA (US);
Abstract
A keyboard device which includes a frame having a plurality of bores in which there is positioned a core for slideable motion therein, and a keyboard top positioned over the bores and preferably sealing each of the cores within the bores of the frame so that no particles of food or dust can accumulate between the cores and the frame while still permitting the cores to be depressed to cause a contactor means to engage contact means. In the preferred embodiment the cores are loose within the bores and are held therein from the top by said keyboard top. In addition, a mask to simulate the appearance of a frame about the portions of the top is provided. In addition, the preferred embodiment is sealed on the top and bottom to protect the in words from the environment.