Variable-speed pipe bending

Details Variable-speed pipe bending Variable-speed pipe bending

2000-03-14

2000-12-26

Jones, David

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

72308, 72369, 72388, 72466, B21D 905

Patent

active

061641138

ABSTRACT:
A pipe bending apparatus is disclosed for bending pipe sections, particularly pipe sections of the type used in pipelines. The apparatus allows rapid clamping of the pipe section at reduced pressure via hydraulic fluid regeneration, while providing full hydraulic force for pipe section bending.

REFERENCES:
patent: 3335588 (1967-08-01), Cummings
patent: 3834210 (1974-09-01), Clavin et al.
patent: 3851519 (1974-12-01), Clavin et al.
patent: 4313330 (1982-02-01), Cummings
patent: 4446713 (1984-05-01), Wheeler et al.
patent: 5092150 (1992-03-01), Cunningham
Industrial Fluid Power, Charles S. Hedges, Womack Educational Publications, 1994, pp 124-127.

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