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. 11, 1981
Filed:
Aug. 31, 1979
Laurence G Horwitt, New Haven, CT (US);
Sun Chemical Corporation, New York, NY (US);
Abstract
A probe-like, vibration-resistant fast-heating electrical heater assembly for use in a pollution sensor of an exhaust monitoring system for internal combustion engines, which comprises an elongate metal tube having concentrically disposed therein a metal conductor rod which is insulated from the tube. At one pair of corresponding ends, the tube and rod carry a ceramic coil form having an open winding on it comprising a helical resistance coil that is disposed in a helical groove of the coil form. Ceramic cement is utilized to secure the coil form in place, and also to mount the conductor rod in the conductor tube whereby a rigid, vibration-resistant assemblage is had that can also withstand high temperatures. The conductor tube is carried in a terminal post that has an annular flange at one end for the purpose of mounting the heater assembly in the associated equipment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile