Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With separate heating means for work
Patent
1993-03-24
1995-01-31
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With separate heating means for work
1563042, 1563046, 156507, B29C 6520, B29C 6534
Patent
active
053856287
ABSTRACT:
Bevelled end edges (37, 38) of gasket lengths (21, 36) are fused into miter joints (39) at corners (18) by welding apparatus having jig and clamp sets (64) on plates (49, 50) that are mounted on rails (59, 60) and separated by cam followers (81, 82) which interact against the bias of a spring (87) with a cam (88) which is rotated by a handler (93) on a shaft (73) to set the spacing of the sets (64). End edges (37, 38) are aligned in the spacing gap (54) against surfaces (185, 186) of a sissy bar (180) which is lifted up when the cam (88) is turned to its position of longest spacing. The bar (180) is then lowered and a heater block (29) is moved and locked into an advanced position within the gap (54) pulling a handle (115 of a rod (116), by spring finger (122) which shifts onto a lockwheel (125). The cam (88) is turned to an intermediate spacing position to melt the edges (37, 38) against the block (79), and then moved to a shortest spacing position to fuse the melted edges together. In moving from the intermediate to the shortest spacing position, the cam passes through the longest spacing position again, momentarily separating the edges (37, 38) from the block (79) and aligning the finger (122) with a lockwheel cutout (127), to return the block (79) to its retracted position under the bias of a spring (118).
REFERENCES:
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patent: 3186891 (1965-06-01), Gelling
patent: 3562957 (1971-02-01), Landis
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patent: 4644698 (1987-02-01), Gerdes et al.
patent: 4700509 (1987-10-01), Merla
patent: 4860495 (1989-08-01), Kessler
patent: 4995935 (1991-02-01), Ganzberger
patent: 5246534 (1993-09-01), Tanner
Davis Roland
Koch Gil
Ball Michael W.
Beusse James H.
Franz Warren L.
Stemmer Daniel J.
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