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US 4,903,409 AGranted
Drywall scribing and scoring tool
OwnerStuart N. Kaplan, Frank Matassainventors
Life of this patent
Estimating the term…
Abstract
A drywall scribing and scoring tool for a typical wallboard is provided in which a knife holding unit and scribe units can be adjusted along a scale on an elongated arm of a T-square member. When the short head portion of the T-square member is slid along one edge of the wall board by a person the tool will cut a score into the wall board for breaking to a predetermined size and mark center lines for wall stud nailing locations simultaneously upon the wall board allowing easy installation of the wall board to the wall studs.
Claims5
A drywall scribing and scoring tool for a typical wall board which comprises:
- (a) a T-square member having a short head portion which can bear against one edge of the wall board and an elongated arm portion extending perpendicular from said short head portion;
- (b) means adjustably carried on said arm portion, for cutting into the wall board parallel to the bearing edge of the wall board that said short head portion slides against so that said wall board can be cut to a predetermined size;
- and
- (c) means adjustably carried on said arm portion, for marking lines on the wall board parallel to the bearing edge of the wall board that said short head portion slides against so that wall stud locations can be indicated when the wall board is placed against the wall studs and nailed thereto.
1 more element
Dependencies are inferred from the claim text.