Foam welding apparatus

Details Foam welding apparatus Foam welding apparatus

1978-07-17

1979-11-27

Goolkasian, John T.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Work-secured and/or work-guided

52 80, 156 71, 156186, 156195, 156304, 156306, 156425, 156445, 156475, 156499, 156544, 156575, 219201, 219221, 219552, 220414, 264 32, 425 60, 425375, H05B 320, B29C 2722, B32B 3104, B65H 8104

Patent

active

041759982

ABSTRACT:
Improved welds for thermoplastic foam insulation spirally deposited about a structure are obtained employing a thin, resistance heated welding blade which beneficially is positioned by means of a four-bar linkage connecting the blade to the blade support.

REFERENCES:
patent: 2686861 (1954-08-01), Waller
patent: 3206899 (1965-09-01), Wright
patent: 3282766 (1966-11-01), Wright
patent: 3337384 (1967-08-01), Wright
patent: 3507735 (1970-04-01), Chisholm
patent: 3923573 (1975-12-01), Hay
patent: 3924039 (1975-12-01), Smith
patent: 3954539 (1976-05-01), Smith
patent: 4017346 (1977-04-01), Smith
patent: 4050607 (1977-09-01), Smith

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