Geometrical instruments – Gauge – Door and window
Reexamination Certificate
2000-05-05
2001-10-23
Friedman, Carl D. (Department: 3635)
Geometrical instruments
Gauge
Door and window
C033S562000, C033S563000, C033S566000, C269S097000, C269S043000, C269S904000, C269S045000, C269S095000
Reexamination Certificate
active
06305091
ABSTRACT:
BACKGROUND OF THE INVENTION
Installing window and door trim requires care in making the miter cuts at the corners, and further the set back of the trim from the edge of the opening requires care in order to have uniform mounting of the trim boards.
This present invention discloses jig guide apparatus for marking or scribing trim board for subsequent corner miter cuts of the trim board, and to have a uniform set back of the trim board from the window or door opening, on all sides of a window/door opening.
SUMMARY OF THE INVENTION
This invention is for jig apparatus for and method of guiding a mark line or scribing on wood trim, for a sub-sequent miter cut for the corners of window or door opening, and the jig of the first embodiment is a double end jig panel with a 45° angle on each end of the jig panel and in a second embodiment a 450° on only one end of each jig of a left and a right hand panel and a runner the depth of which on the wall side of the jig of both the first and second embodiment provides a margin between the window or door opening and the trim edge, or in other words provides the set-back of the trim from the window or door opening edge, and the trim board fits into a lengthwise channel on the wall side of the jigs, for marking of the trim board for subsequent miter cut.
The second embodiment is for separate left and right jig panels, while the first embodiment is a double end jig panel assembly, each of which can be used as right or left side for marking of the window/door trim board.
OBJECTS OF THIS INVENTION
One of the objects of this invention is to disclose jigs double end and single end jigs and each jig having a channel for holding wood trim on a window/door opening for marking the wood trim for subsequent miter cut for the corners of trim around the window/door opening.
Another object of this invention is to disclose a method for a guide for marking, or scribing, window/door trim for subsequent miter cut of the window/door trim around the window/door opening.
Another object of the invention is to describe means for holding window/door trim in a channel in the jigs which means is a bolt and nut to adjust the channel opening for variance in width of the wood trim.
In the following disclosure, “window/door” opening is synonymous with “window or door opening”.
“Lengthwise” means the length of either the single or double jigs.
PRIOR ART CITED (U.S. PATENTS)
U.S. Pat. No. 5,669,192 for DOOR FRAME CLADDING.
U.S. Pat. No. 5,305,566 for REPLACEMENT DOORS AND WINDOWS.
U.S. Pat. No. 5,088,682 for FACIA INSTALLATION HOLDER.
U.S. Pat. No. 4,793,109 for FACING WOODEN DOOR FRAMES.
U.S. Pat. No. 4,556,205 for GAUGING TOOL.
U.S. Pat. No. 4,308,692 for DOOR FRAME KIT.
U.S. Pat. No. 3,753,556 for DOOR JAM JIG.
None of the above prior art patents cited disclose either singly or collectively, the matter disclosed and claimed in this application for patent.
REFERENCES:
patent: 3753556 (1973-08-01), Nix
patent: 4308692 (1982-01-01), Rumble et al.
patent: 4556205 (1985-12-01), Rock et al.
patent: 4793109 (1988-12-01), Noach
patent: 5088682 (1992-02-01), Gibbs
patent: 5305566 (1994-04-01), Larkowski
patent: 5669192 (1997-09-01), Opdyke et al.
Friedman Carl D.
Johnson Robert T.
Nguyen Chi
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