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:
Apr. 14, 1981
Filed:
Mar. 24, 1980
Norman Zatsky, Southbury, CT (US);
Timex Corporation, Waterbury, CT (US);
Abstract
An air/metal cell includes an internal gas-permeable membrane to restrict the transfer of oxygen from ambient atmosphere to the cathode, and incorporates an internal valve actuated by external force on the cell to open the valve and admit substantial quantities of oxygen for intermittent high current drain on the cell. Preferably the external force is provided by the same switching device which closes the electric circuit requiring the high current drain. The cell is specifically shown in the environment of a zinc/air cell powering a digital wristwatch. The high current mode of the cell is actuated by the pushbutton of the watch which turns on a miniature lamp.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile