Patent · US Expired

Cover for a battery cell

US4666800A · kind A · utility

2Cited by

2References

7Claims

0Family size

Assignee

Varta Batterie Aktiengesellschaft · DE

Inventors

Dieter Bechtold · Bad Vilbel, DE
Rudolf Eckardt · Wesel, DE

Key dates

Filing date	Sep 3, 1985
Grant date	May 19, 1987
Priority date	—
Expiry date	Sep 3, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A cover which is to be sealed tightly to the corresponding plastic container of a battery cell by means of radiant heating is provided with a series of molded knobs along the lower side of its edge, which knobs serve as spacers between the cover and the edge of the container during the heat-up phase so that the surfaces to be bonded are exposed to the radiant heat without obstruction. The softened knobs are plasticized and bonded when the container and the cover are subsequently pressed together.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.