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. 07, 1981
Filed:
Jun. 19, 1979
Applicant:
Inventor:
Barrie J Martin, Shenfield, GB;
Assignee:
Plessey Handel und Investments AG, Zug, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F22B / ;
U.S. Cl.
CPC ...
1224 / ; 431-1 ; 239102 ;
Abstract
A boiler control system comprising an oil burner, one or more electrically-operated oil-injecting devices for injecting oil into a combustion chamber of the oil burner, and switch means for periodically energizing the or each oil-injecting device, and switch-control means for varying the ON/OFF time ratio of the energization of the or each oil-injecting device.