Bending apparatus

Details Bending apparatus Bending apparatus

2007-02-06

2007-02-06

Larson, Lowell A. (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

By use of work-contacting wiper and moving, work-holding form

C072S369000, C072S466200

Reexamination Certificate

active

11212881

ABSTRACT:
A bending apparatus which can bend pipes and obtain as small curvature as possible without flattening or buckling easily occurring in the bending region. The bending apparatus comprises a bending die for a pipe, a clamping die which rotates together with the bending die while clamping the pipe, a pressure die which hold down the pipe, and a metal core which is inserted into the pipe and maintains the shape of the bending region, wherein the metal core is a spherical metal core rotatably supported by an arch shaped arm on the leading end of a core holder.

REFERENCES:
patent: 1099669 (1914-06-01), Ruckstinat
patent: 1598893 (1926-09-01), Taylor
patent: 2305951 (1942-12-01), Carl
patent: 4009601 (1977-03-01), Shimizu
patent: 4481803 (1984-11-01), Dieser
patent: 2004/0011106 (2004-01-01), Hatano
patent: 2005/0268684 (2005-12-01), Nakazato
patent: 05149157 (1993-06-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3881247