Compound tools – Holders or handles
Patent
1989-05-15
1990-02-13
Parker, Roscoe V.
Compound tools
Holders or handles
7100, 7157, 1510404, 1510405, 15111, 228 57, B25F 100
Patent
active
048994090
ABSTRACT:
A manual tool for preparing tube ends and/or pipe ends for jointure is provided, to perform the functions of scraping for cleaning, scarifying, deburring and abrading to remove grit and foreign matter such as solder, solder drops, chemical substances, or other debris on the outer and/or inner surfaces of the ends of tubing, pipe fittings and the like, prior to connection of said tubing, pipe and fittings by welding, soldering, etc. A plurality of tool units are detachably connected to a manual tool comprising a tool body adapted to fit readily and confortably in the hand of a user, said tool body having a generally circular shape. The tool units may comprise: external brush units, internal brush units, external sharpened blade units, internal metal blades or ribs having sharpened edges and the like or other desirable tool units having sharpened edges, abrasive surfaces, and the like to perform the desired cleaning, scarifying, scraping, etc. necessary to provide cleaned tubing ends, piping ends, and the like to allow better connection of said tubing ends, piping ends, etc.
REFERENCES:
patent: 810987 (1906-01-01), Spicer
patent: 1620262 (1927-03-01), Klaboe
patent: 2562136 (1951-07-01), Sullins
patent: 4038715 (1977-08-01), Litt
patent: 4133070 (1979-01-01), Litt
patent: 4553280 (1985-11-01), Stright
patent: 4575892 (1986-03-01), Ross
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