Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1975-07-23
1977-10-04
Van Horn, Charles E.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
83255, 83263, 83278, 156521, 156529, 156568, 226 58, 226144, 271276, B26D 900, B65H 508
Patent
active
040522490
ABSTRACT:
A length of face sealing valve stock is formed into individual face sealing valves and applied to end closures of pressurized dispensers. The stock advances in steps by a feed dog in vent slots in the tape. The tape is held against advancement by an index dog at all other times. Lost motion in the feed dog drive accommodates the drive to tape arrest and permits shutdown and startup at a known, predetermined position in a cycle. A head carries a punch and shear blade which form vent slots and cut the tape to valve length during the time that the tape is stopped. Tape is sheared to valve length at an index wheel which holds the tape by vacuum during shear and successive 90.degree. transports for solvent activation of adhesive and transfer from the wheel by bonding the activated adhesive to an end closure. A proximator forces an end closure into contact with a valve during transfer. A manifold moves with respect to the index wheel to brake vacuum at the transfer station, apply an air blast there during valve transfer to an end closure, and to establish vacuum at the shear station just prior to shear. An end closure having a valve falls away from the index wheel and the end closure is stripped from the proximator and conveyed away.
REFERENCES:
patent: 1995077 (1935-03-01), Perryman
patent: 2720994 (1955-10-01), Arvidson
patent: 2779590 (1957-01-01), Seastrom
patent: 3367822 (1968-02-01), Hoffler
patent: 3586585 (1971-06-01), Kirk et al.
patent: 3607537 (1971-09-01), Von Hofe et al.
patent: 3753836 (1973-08-01), Buckholz
patent: 3910811 (1975-10-01), Paxton et al.
Bruce Roger K.
Marhold Werner
Sterigard Corporation
Van Horn Charles E.
Wityshyn M. G.
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