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:
Mar. 02, 1993
Filed:
Jan. 11, 1991
Applicant:
Inventor:
Nicholas Couch, Huddersfield, GB;
Assignee:
Wellman Thermal Systems Corporation, Shelbyville, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
392501 ;
Abstract
An immersion heater having a screw plug formed from header and sleeve parts. The header part comprises a stamped, thin sheet of metal having a plurality of holes for the heating elements to extend through and a portion of hexagonal configuration to be gripped by a tool. The sleeve part is a threaded piece of pipe to be screwed into the wall of a fluid-containing vessel. The header and sleeve parts are welded together to form the assembled screw plug.