Pipe bending apparatus

Details Pipe bending apparatus Pipe bending apparatus

1980-03-10

1982-02-02

Larson, Lowell A.

Metal deforming

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

Plural or complex apparatus

72382, 72388, 72398, 72466, B21D 905

Patent

active

043133304

ABSTRACT:
A pipe bending apparatus for bending thin wall pipe used in oil and gas pipelines. The apparatus includes a housing section with an upper bending die connected to its frame. Mounted within the housing section are a pair of flexible external bending shoe assemblies for clamping around the external surface of that section of pipe to be bent. The apparatus further includes a flexible mandrel aligned between the external bending shoe assemblies and adapted for being inserted into the pipe and expanded during bending operations. A positioning assembly is also connected between the mandrel and the housing section for accurately positioning the mandrel in the pipe and moving the pipe with respect to the apparatus while insuring that the bend is properly aligned. The mandrel further includes a series of slidably mounted shoe assemblies which move in a toggle-like manner to engage the inner surface of the pipe.

REFERENCES:
patent: 2347593 (1944-04-01), Cummings
patent: 2943729 (1960-07-01), Dalrymple
patent: 3014518 (1961-12-01), Cummings
patent: 3220719 (1965-11-01), Luker
patent: 3335588 (1967-08-01), Cummings
patent: 3747394 (1973-07-01), Cunningham
patent: 3964290 (1976-06-01), Auxer
patent: 3979941 (1976-09-01), Auxer
patent: 4027522 (1977-06-01), Clavin
patent: 4088007 (1978-05-01), Clavin
patent: 4164135 (1979-08-01), Clavin

Affiliated with

Also associated with

Rating

Pipe bending apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pipe bending apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipe bending apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1817111