Dispensing – Processes of dispensing
Patent
1989-11-21
1991-05-07
Olszewski, Robert P.
Dispensing
Processes of dispensing
2221462, 222415, B67D 542
Patent
active
050129538
ABSTRACT:
Trigger-operated hot-melt dispenser with positive-feed mechanism wherein at least one continuous feed-belt in axial contact with a rod of thermoplastic material and operated to urge said rod into the melt chamber of said hot-melt dispenser is characterized in that release of the trigger first reverses the feed-belt to withdraw the rod a pre-set amount away from the melt-chamber and after a pre-set interval moves the feed-belt transversely out of contact with the rod. This facilitates removal and replacement of a part-spent rod. Preferably the rate of the transverse movement is greater than the tracking speed of the belt. A preferred embodiment includes twin, parallel feed belts which together grip an intervening rod.
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Borst Willi
Wooge Christian
Bostik, Inc.
Conlin David G.
Corless Peter F.
Olszewski Robert P.
Reiss Steve
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