Floating sealing pressure means for carton ends

Details Floating sealing pressure means for carton ends Floating sealing pressure means for carton ends

1976-10-12

1977-08-02

Coan, James F.

93 441R, B31B 164

Patent

active

040389081

ABSTRACT:
A floating sealing pressure means for sealing carton ends, and which eliminates undesirable loading of a carton mandrel support system in a packaging machine due to carton and sealing pressure. The floating sealing pressure means is disclosed in a carton bottom sealing embodiment which employs a pressure pad for sealing engagement with the bottom end of a carton, and a reaction or counter pressure pad. The pressure pad and reaction pad are movably supported so as to function like a "C" clamp, so as to allow the pressure pad and reaction pad to operate in alignment with each other and locate on a carton mandrel so as to impart substantially no load into the supporting structure of the mandrel during a carton bottom sealing operation. The pressure pad and reaction pad are powered by a toggle actuator means which balances the loading on the supporting system of the mandrel.

REFERENCES:
patent: 1535463 (1925-04-01), Gault
patent: 1563323 (1925-12-01), Bergstein
patent: 2412924 (1946-12-01), Stover
patent: 3971300 (1976-07-01), Bachner

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