Battery enveloping with foam

Details Battery enveloping with foam Battery enveloping with foam

1975-07-09

1978-05-30

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 466, 264 54, 264261, 264323, 429139, B29D 2700

Patent

active

040923860

ABSTRACT:
A battery separator envelope is provided having two walls of battery separator connected together by a foam member. In a method, two walls of battery separator are secured on a mandrel by sandwiching the mandrel and the walls of battery separator in a jig. A foam bead is then extruded between the walls and the bead is tamped and squeezed to complete the final formation of the foam member. The apparatus includes the mandrel, jig, extruder and support for guiding the jig assembly past the extruder.

REFERENCES:
patent: 2707202 (1955-04-01), Chubb
patent: 2995614 (1961-08-01), Krueger
patent: 3201280 (1965-08-01), Yumoto
patent: 3340100 (1967-09-01), Silvestri
patent: 3630819 (1971-12-01), Conger
patent: 3703417 (1972-11-01), Rosa et al.
patent: 3872198 (1975-03-01), Britton
patent: 3919371 (1975-11-01), Jache

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