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:
Jan. 11, 1977
Filed:
Sep. 03, 1975
Curtis D Johnson, Davenport, IA (US);
Hal E Weidner, Davenport, IA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
An electrochemical elapsed time meter indicator with round counter circui for a gun to indicate past usage whereby maintenance and repair or replacement procedures will insure greater reliability in critical field use. The meter, working on an electroplating principle as a function of current and time, may be activated by gun use such as by a switch on the gun trigger, an inductance or piezoelectric transducer in the buffer, a recoil operated microswitch or as part of the circuit in externally powered guns. The meter preferably is color coded to indicate weapon condition, area of use, and replacement or maintenance required.