Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1990-05-17
1992-06-16
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
92165R, 921691, 2221462, 277 35, 277 50, 277 58, 277188A, 277206A, 285404, F16J 1556, F16J 1518
Patent
active
051219301
ABSTRACT:
An air operated dispense head for dispensing of hot melt and related adhesives is provided which utilizes a drop-in seal cartridge assembly in which a hardened needle is sealed using a pair of quad seals along with soft back up rings. Improved life is obtained from this combination of elements.
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Donley Paul J.
Russell Gary A.
Graco Inc.
Shoap Allan N.
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