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US 4,288,016 AGranted
Corner bead and installation tool
AssigneePlastic Components, Inc.
InventorsStephen J. Failla, Raymond S. Perry
Life of this patent
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AssigneePlastic Components, Inc.
InventorsStephen J. Failla, Raymond S. Perry
Estimating the term…
A support for a pair of generally 90.degree. relatively angulated staple guns is provided and the support defines a pair of aligned generally 90.degree. V-shaped notches for embracingly engaging an outside dry wall corner structure. The inner portions of the V-shaped notches are relieved to receive a generally V-shaped corner bead therein and the notches are spaced apart to engage the corner bead at points spaced longitudinally therealong. The staple guns are spaced apart intermediate the V-shaped notches and include abutment surfaces from which staples may be projected, the abutment surfaces of the staple guns substantially coinciding with planes lying along and extending between corresponding sides of the notches. The staple guns include actuators shiftable between active and inactive positions and the support includes an operator shiftable along a path bisecting the included angle for operating the actuators. A V-shaped corner bead is provided including a partial cylindrical apex portion of generally 270.degree. in angular extent and including tapering free longitudinal edge portions and projections extending longitudinally of and spaced transversely of the remote sides of the V-shaped corner bead.
A corner bead installation tool including an elongated support having longitudinally spaced abutment structures defining registered generally V-shaped notches opening outwardly alongside of said support and adapted to abut the outer surfaces of the flanges of a corner bead extending along said support and having its apex portion seated in said notches, a pair of fastener guns mounted on said support and including abutment surfaces thereof from which fastener may be ejected, said abutment surfaces being disposed, generally, in planes lying along and extending between corresponding sides of said notches, said fastener guns each including an actuator shiftable between active and inactive positions and means operative in response to shifting of said actuators to said active positions to eject fasteners from said abutment surfaces in directions generally normal thereto, operator means shiftably supported from said support and operative to substantially simultaneously shift said actuators toward said active positions in reponse to shifting to the operator means.
Dependencies are inferred from the claim text.