Plastic article or earthenware shaping or treating: apparatus – Hand movable – substrate traversing – plural dimension shaping...
Patent
1996-02-12
1997-04-22
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Hand movable, substrate traversing, plural dimension shaping...
152357, 403325, 403328, 403DIG4, 425186, 425458, B05C 1710
Patent
active
056227299
ABSTRACT:
A corner finisher spreads mastic on a joint formed at an inside corner of drywall. The drywall corner finisher is conventionally used with a plurality of alternative tools for supplying a plurality of coats of mastic in different thicknesses. Therefore, a quick disconnect coupler is provided to rapidly change the tools and yet to hold them so securely that there is almost no chance for an unwanted disconnect between the drywall corner finisher and one of the alternative tools for supplying mastic. The invention provides such a coupler in the form of a ball and socket behind a sliding locking plate having a key hole slot in it for receiving a ball on a mastic delivery device.
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Leyson Joseph
Woo Jay H.
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