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. 20, 1990
Filed:
Oct. 26, 1988
Rainer Klink, Kernen i.R., DE;
Wolfgang Grothe, Reutlingen, DE;
Deutsche Automobilgesellschaft mbH, Hanover, DE;
Abstract
A welding and backing ring arrangement for the connecting of two cylindrical enclosure parts of a flameproof enclosure of an electric cell having stacks of electrodes arranged symmetrically to the weld seam is described. The ring consists of a rectangular hollow profile section (box profile) with an outwardly directed, approximately equatorially arranged collar. The ring is advantageously produced from two identical ring halves which are connected mirror-invertedly and the meridian cross-section of which has a hat profile. To relieve the weight, the axially perpendicular areas may be provided with breakthroughs. The wall thickness of the welding ring is to be approximately 50% of the wall thickness of the flameproof enclosure.