Gear cutting – milling – or planing – Milling – With means to control temperature or lubricate
Patent
1990-01-18
1991-10-15
Briggs, William
Gear cutting, milling, or planing
Milling
With means to control temperature or lubricate
144208R, 409175, B23C 120
Patent
active
050569708
ABSTRACT:
The described invention is intended for use primarily in the yacht repair industry and specifically in the repair of fiberglass hulls of yachts. However, its use will not be limited to fiberglass in yachts but fiberglass in general where applicable.
The invention removes gelcoat (coating over fiberglass) and/or consecutive layers of fiberglass laminate.
The invention is specifically designed to remove osmotically blistered gelcoat and/or fiberglass laminate in an efficient and in an environmentally attractive fashion.
The invention "planes" off gelcoat and/or fiberglass laminate duplicating the existing contour of the hull or boat bottom. The cutterhead is continually flushed with water to prevent toxic dust from being released into the air. Interchangeable depth gauges allow change in the depth of the cut. Gelcoat and fiberglass are removed anywhere from a 0 to 1/4 inch depth at a rate of four square feet per five minutes leaving a consistent and fair surface.
REFERENCES:
patent: 2066741 (1937-01-01), Ripsch
patent: 2264278 (1941-12-01), Danforth
patent: 2393463 (1946-01-01), Gottlieb
patent: 22625860 (1953-01-01), Plester
patent: 2688348 (1954-09-01), Sullivan
patent: 2987970 (1961-06-01), Watson
patent: 3044366 (1962-07-01), Bidart
patent: 3501999 (1970-03-01), Parks
patent: 4485858 (1984-12-01), Cecchi
patent: 4948307 (1990-08-01), Dodos
Briggs William
Donaghy John K.
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