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:
Oct. 30, 1984
Filed:
Sep. 14, 1983
Laurent de Bellis, Le Bouscat, FR;
Raymond Prokopp, Bordeaux, FR;
Societe Anonyme dite SAFT, Romainville, FR;
Abstract
The sealed feed-through (1) interconnects two cells of an alkaline storage battery (eg. for an electrically propelled car) by passing through a wall (2) of the battery. The battery includes a monobloc casing of plastic material defining at least two battery cell compartments which are separated by said wall, and said wall has an orifice for receiving the feed-through. The feed-through comprises a first portion (10) for electrical connection to electrodes (7) of a first polarity in a first one of the cells and a second portion (20) for electrical connection to electrodes (7') of opposite polarity in the other cell. In an alkaline battery, conventional welding techniques for making such feed-throughs in lead-acid batteries are not applicable because metals such as nickel steel must be used instead of lead. The resulting welding temperature would destroy the plastic wall. Instead, the first and second portions include interfitting male and female portions (11 and 21) suitable for passing through said orifice from opposite sides thereof and for engaging each other in a force fit. Respective skirts surround said interfitting portions and serve to compress at least one deformable sealing member (30) around the orifice. Stops are provided to prevent the wall being crushed when the feed-through portions are forced together.