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:
May. 04, 1982
Filed:
Sep. 17, 1980
Applicant:
Inventors:
Leland L Howland, Belle Plaine, MN (US);
Hendrie J Grant, St. Paul, MN (US);
David H Taylor, Bloomington, MN (US);
Assignee:
Thermo King Corporation, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B / ; F25B / ;
U.S. Cl.
CPC ...
62160 ; 6219 / ; 6219 / ; 62228 ;
Abstract
A hot gas pressure switch 29 is provided to be responsive to pressure in a hot gas line 22 which will have a significant pressure value only during a heat or defrost mode, to unload cylinders of a transport refrigeration compressor to avoid overload, so that the compressor can operate with a substantially greater discharge pressure in a cooling mode without penalty.