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. 24, 1977
Filed:
Nov. 11, 1975
Applicant:
Inventors:
John W Shirley, Chicago, IL (US);
James V DePhillips, Chicago, IL (US);
Assignee:
Wrap-On Company, Inc., Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219549 ; 200302 ; 219528 ; 219535 ; 337113 ; 337381 ; 3402 / ;
Abstract
An improved thermostatic electrical cable heater is disclosed which permits more accurate temperature sensing by the thermostat and better control over the temperature of the object being heated. This improved sensing and temperature control is accomplished by isolating the thermostat and its surrounding insulated envelope from the electrical resistance heating elements of the cable heater.