Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Centering means adapted to be replaced by tool
Patent
1989-09-26
1990-06-26
Howell, Daniel W.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Centering means adapted to be replaced by tool
408 92, 408100, 408111, 408712, B23B 4514
Patent
active
049367200
ABSTRACT:
A device for cutting holes in pipe includes a base configured for attachment normal to a section of pipe and having a track extending the length of the base, a travel plate slidably engaged in the track and configured for the accommodation of a power drill thereon, a mechanism for controlling the linear reciprocal movement of the travel plate in the track, the length of the base being just long enough to accommodate the drill and hole drilling bit assembly for operating the apparatus in close quarters. A hole locator, and an adapter for attachment of the base to smaller diameter pipes may also be provided.
REFERENCES:
patent: 1434946 (1922-11-01), Fiorillo
patent: 2492783 (1949-12-01), Chamberlain
patent: 2672770 (1954-03-01), Buck
patent: 3741670 (1973-06-01), Wood
patent: 3922107 (1975-11-01), Fowler
patent: 3967687 (1976-07-01), Fowler
patent: 4277208 (1981-07-01), Jackson et al.
patent: 4533284 (1985-08-01), Agius et al.
Victaulic Operating Instructions, Victaulic Company of America, South Plainfield, N.J. 07080, Mar. 1978, pp. 1-8.
Catalog Sheet from Milwaukee Brand Heavy-Duty Drill Stands, Milwaukee Electric Tool Corporation, Milwaukee, Wisc., date unknown, p. 23.
Pace Porta Bore "The Portable Pipe Drilling Machine with the Big Punch!", Two-Page brochure, date unknown, Pace Machinery and Fittings, Inc., Wasco, Ill. 60183.
"Fire Protection Industry, Here It Is! The Hole Thing", Four-page brochure, 1987, Fend Industrial Tool Inc.
Dolatowski Edwin H.
Porzio John M.
Fend Industrial Tool Inc.
Howell Daniel W.
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