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. 21, 2002
Filed:
May. 05, 2000
Max Endler, Ludwigsburg, DE;
Martin Allgaier, Ludwigsburg, DE;
Michael Haussner, Benningen, DE;
Heinz-Georg Schmitz, Kirchberg, DE;
Ulf Wyrwich, Pleidelsheim, DE;
Reinhold Grebe, Affalterbach, DE;
Hans-Peter Kasimirski, Ludwigsburg, DE;
Martin Eller, Ludwigsburg, DE;
Beru AG, Ludwigsburg, DE;
Abstract
A glow plug including a heating rod having a plug body composed of an electrically insulating plastic material, an inner pole connected to heating elements, and optionally, control elements, and an outer pole which is electrically insulated from adjoining components of the plug body by an insulative material provided between an inner and outer support tube, the inner support tube surrounding the heating rod while the plug body surrounds the outer support tube.