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:
Jun. 26, 2001
Filed:
Sep. 04, 1996
Applicant:
Inventor:
Eugen Schwarzkopf, Lüdenscheid, DE;
Assignee:
Hotset Heizpatronen U. Zubehohr GmbH, Ludenscheid, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/526 ;
U.S. Cl.
CPC ...
B29C 4/526 ;
Abstract
An electrical heater for a mold has an elongated tubular casing made of a ductile metal and deformable by hand, a manually deformable electrical heating element extending longitudinally inside the casing, and a manually deformable mass of electrically insulating potting filling the casing around the element. The casing can be annularly corrugated and formed by a succession of like U-section rings each having a pair of parallel legs and a bight portion and a succession of like rounded annular webs interconnecting the rings and each joining a leg of one respective ring with a leg of an adjacent respective ring.