Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-10-10
1992-03-24
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156286, 156290, 156301, 156324, 156499, 156552, 156562, B29C 5110, B29C 5114, B29C 6502
Patent
active
050984985
ABSTRACT:
A method and apparatus for encapsulating a porous article in plastic film without employing supporting molds. The article is deposited onto a lower web and an upper web is moved into overlying position. The edges of the webs are gripped by moving teeth to move the webs and the article in unison. The webs are then pinched together adjacent the article to form an enclosed volume. The film is heated to its fusing temperature and the enclosed volume is evacuated through a tube inserted through the lower web and into the article. The tube is removed and the fused webs are trimmed adjacent the edges of the article, resulting in an encapsulated article.
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Batdorf Daniel J.
Hale Steven E.
Sherman James W.
Ball Michael W.
Lister John
Maki Steven D.
Manville Corporation
Quinn Cornelius P.
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