Metal deforming – Tool and/or tool holder – Including flexible or yieldable tool or support
Patent
1995-02-24
1996-01-23
Jones, David
Metal deforming
Tool and/or tool holder
Including flexible or yieldable tool or support
72479, 72710, B21D 108
Patent
active
054857392
ABSTRACT:
A straightener for removing dents from an installed section of pipe. The inventive device includes a tapered body positionable within the pipe. A vibrating assembly within the body removes dents from the pipe as the device is pulled therethrough.
REFERENCES:
patent: 423544 (1890-03-01), Vanderman
patent: 1752799 (1930-04-01), Junkers
patent: 2545878 (1951-03-01), Forrest
patent: 4727745 (1988-03-01), Ferree
patent: 4771627 (1988-09-01), Speakman
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