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. 06, 1991
Filed:
Sep. 25, 1989
Applicant:
Inventors:
Frederick G Grise, Osterville, MA (US);
Paul H Bodensiek, Centerville, MA (US);
Lawrence Morgan, Streetsville, CA;
Demetrius Maikantis, Brampton, CA;
John A Marstiller, Marstons Mills, MA (US);
Assignee:
Flexwatt Corporation, West Wareham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219213 ; 219549 ; 392435 ;
Abstract
A truck trailer or similar bulk storage area is heated by providing electrical resistance heaters in longitudinally-extending metal ducts extending from and to a short distance below the floor level. Electrical sheet resistance heaters are attached to the underside of the metal plate forming the duct top, each duct is placed between a longitudinally-extending pair of wooden floor boards, and a pair of ducts are placed side-by-side near each edge of the trailer bed or floor of the storage area.