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:
Jul. 01, 1980
Filed:
Jul. 25, 1979
Donald A Grimes, Findlay, OH (US);
Bendix Autolite Corporation, Fostoria, OH (US);
Abstract
The helical compression spring which completes the electrical circuit between the interior surface of a tubular ion conductive solid electrolyte gas sensing element closed at one end, and an electrical terminal retained in spaced relation to the open end of the sensing element is close wound adjacent the end exposed to temperatures which would cause open coils of the spring to relax and has a compressed length sufficient to maintain a preselected minimum force against the terminal and sensing element over the full range of operating temperatures to which the sensor is exposed. In an alternate embodiment of the invention, this spring is provided with a closely wound portion at each end so that the sensor can be assembled by inserting the spring either end first.