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:
Jun. 01, 1976
Filed:
Jan. 20, 1975
Applicant:
Inventor:
Frank Payne, Knoxville, TN (US);
Assignee:
Robertshaw Controls Company, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ; F01P / ;
U.S. Cl.
CPC ...
1231 / ; 137554 ; 236 / ; 337401 ;
Abstract
Improved pollutant emission control system and a combined electric switch and temperature responsive valve therefor as utilized in an internal combustion engine wherein a specially arranged electric switch and valve of the combined switch and valve is respectively connected to a catalytic converter of the engine exhaust system and to certain engine portions such as the engine spark device in order that the thermo-responsive power element of the combined switch and valve controls the operation of both the specially arranged electric switch and valve to minimize noxious pollutant emission from the engine exhaust system.