Woodworking – Special-work machine – Combined
Reexamination Certificate
2001-04-04
2002-12-03
Bray, W. Donald (Department: 3725)
Woodworking
Special-work machine
Combined
C144S134100, C144S135200, C144S137000, C144S371000
Reexamination Certificate
active
06488061
ABSTRACT:
BACKGROUND OF THE INVENTION
In the production of curved door and window arches, it is necessary to cut the inner and outer surfaces of the arch as well as the decorative face or profile of the arch. Historically these cuts have been made by means of successive separate cutting operations in order to achieve the completed arch design. Of course, this means of cutting an arch is quite time consuming and labor intensive.
BRIEF SUMMARY OF THE INVENTION
By this invention, a single pass radius molding system is provided for a decorative arch. A pair of vertically disposed cutters are provided to cut the inner and outer surfaces of the arch and a horizontally disposed cutter is positioned between the two vertical cutters to cut the profile of the arch. A recess is formed in the inner end of the horizontal profile cutter with the inner vertical cutter rotatably positioned on an extension secured to a door hinged to the frame. To provide stability, the free end of the extension is disposed in the recessed end of the horizontal cutter during a cutting operation.
REFERENCES:
patent: 4244253 (1981-01-01), Flanigan
patent: 4306598 (1981-12-01), Peot
patent: 4685496 (1987-08-01), Livick
patent: 4986152 (1991-01-01), Sammons
patent: 5005618 (1991-04-01), Stegherr
Bray W. Donald
Rodgers & Rodgers
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