Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Means joining flexible indefinite length or endless bodies...
Patent
1993-11-29
1995-03-14
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Means joining flexible indefinite length or endless bodies...
1563042, 1563045, 156508, 156535, 269157, B32B 3100
Patent
active
053974255
ABSTRACT:
A pair of plastic tubes are welded together by mounting each tube in the clamp jaws of a holder. A heated wafer is movably mounted in the gap between the tubes to cause the ends of the tubes to melt. The melted ends of the opposed tubes are pressed into contact with each other to form a welded connection. Each side of the wafer has a scoop to remove excess plastic material at the ends of the tubes to control the size of the weld connection. A pair of structural cam elements is used to create a precise spacing between each set of clamp jaws for guiding the wafer to control the plastic volume of the weld. The resulting weld is independent of rheology of plastic. The same device could also be used for disconnect purposes by cutting through a single tube and forming two tube sections. Unique double jaw construction is also disclosed.
REFERENCES:
patent: 3729360 (1973-04-01), McElroy
patent: 3793119 (1974-02-01), Province
patent: 4222296 (1980-09-01), Christy et al.
Ivansons Ivars V.
Ivansons Valdis
Spencer Dudley W. C.
Denco Inc.
Rivaro Paul M.
Simmons David A.
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