Coating apparatus – With vacuum or fluid pressure chamber
Patent
1988-02-01
1989-06-27
Apley, Richard J.
Coating apparatus
With vacuum or fluid pressure chamber
118 501, 118629, 118326, 239693, 239122, 141 205, 141 59, C23C 1400, B05B 502, B05C 502
Patent
active
048419044
ABSTRACT:
A hand held device for coating a fastener with a coating and which includes a first body with a free end and which defines a first chamber that is placeable over the fastener, apparatus for supplying the coating under a pressure to the first chamber for coating the fastener with the coating, a second body with a free end and which is disposed external to the first body so as to form a second chamber therebetween, the second body is rigidly attached to the first body and the free end of the second body is displaced a distance below the free end of the first body so as to form a passageway therebetween, and apparatus for reducing pressure in the second chamber, the reducing apparatus draws the coating from the first chamber where the fastener is initially coated with the coating from the supply apparatus through the passageway and into the second chamber which causes the second chamber to fill with the coating so that when the pressure of the supply apparatus is eliminated the coating is drawn back from the second chamber through the passageway and into the first chamber where the fastener is recoated with the coating to assure that all areas of the fastener is coated with the coating.
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Apley Richard J.
Bender David J.
Geib Richard G.
Grumman Aerospace Corporation
Hoffman Bernard S.
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