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. 21, 1992
Filed:
Nov. 27, 1990
Applicant:
Inventor:
Richard W Munroe, Millbury, MA (US);
Assignee:
Coppus Engineering Corporation, Millbury, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219496 ; 219497 ; 219491 ; 219494 ; 392360 ; 392365 ;
Abstract
An air heater with a safety control circuit is disclosed. A heat source is mounted within a hollow housing having an air inlet end and an air outlet end. The heat source is actuated in response to the presence of a heat control signal. The heat control signal is produced when both a predetermined minimum pressure differential between static air pressure outside the hollow housing and the air velocity pressure within the housing is reached and the temperature of a portion of the housing is lower than a predetermined maximum sensed temperature. Application of the heat control signal to the heat source can be manually initiated or interrupted.