Drywall finishing head with tensioner assembly

Details Drywall finishing head with tensioner assembly Drywall finishing head with tensioner assembly

2005-04-05

2005-04-05

Huson, Gregory L. (Department: 3751)

Coating implements with material supply

Including means to regulate coating thickness

C015S235300, C156S574000, C156S575000, C425S087000, C401S048000, C401S138000, C401S139000, C401S266000

Reexamination Certificate

active

06874965

ABSTRACT:
A drywall finishing head is provided for applying mastic material over a tape joint between adjacent wallboard surfaces. The finishing head includes a coater connected to a pneumatic applicator for delivering the mastic material. A wiper blade extends across the length of the coater with a cover underlying the wiper blade and a backer bar overlying the wiper blade. A cam assembly is rotatably mounted on a tensioning portion of the coater. Adjustment of the cam assembly is constructed and arranged to change the force of the backer boar so that a proper crown or profile of mastic material can be delivered to the tape joint through a gap between the cover and the wiper blade.

REFERENCES:
patent: 4208239 (1980-06-01), Lass
patent: 4516868 (1985-05-01), Molnar
patent: 5122006 (1992-06-01), MacMillan
patent: 6733262 (2004-05-01), Denkins
patent: 20010003563 (2001-06-01), Schauer et al.

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