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:
Feb. 15, 1994
Filed:
Jan. 13, 1992
Rainer Klink, Kernen, DE;
Deutsche Automobilgesellschaft mbH, Stuttgart, DE;
Abstract
A process and apparatus for the hermetic adhesive bonding of plastic casing parts of a battery or of a galvanic cell. The casing comprises a plastic casing container and a top or bottom of the same type of plastic, preferably of polyamide, which are adhesively bonded to each other by means of a pair of joining surfaces. For adhesive bonding, the joining surface of one of the two parts is wetted at specific locations with a solvent dissolving the plastic, preferably with formic acid, over a time period of 5 to 7 seconds. The joining surface is aired at room temperature in still air over a time period of about 15 to 25 seconds, and the casing parts are then joined to each other and pressed together with pressure maintained over a time period of about to 5 to 10 minutes.