Tube expander

Details Tube expander Tube expander

1990-10-31

1991-08-20

Jones, David

Metal deforming

Tool and/or tool holder

72481, 29727, 2989044, B21D 3104, B21D 3704

Patent

active

050404059

ABSTRACT:
The present invention relates to a tube expander having a reciprocating member for selectively reciprocating a plurality of mandrels for expanding tubes. Each mandrel includes a bullet, having a diameter which is larger than the inner diameter of the tubes, at the one end thereof. The tube expander of the present invention comprises an engage section formed at a head section of the mandrel, the diameter of the engage section is larger than the shaft section of the mandrel. A fixture is provided with the reciprocating member and having a through-hole through which the shaft section of the mandrel is inserted. A stopper is provided on the rear face of the fixture and being independently moved with respect to the head section of the mandrel by a drive means. The stopper prevents the mandrel from moving in the axial direction thereof with respect to the fixture during the movement of the stopper.

REFERENCES:
patent: 3824668 (1974-07-01), Wightman
patent: 4738130 (1988-04-01), Homma
patent: 4771536 (1988-09-01), Vanderlaan et al.

Affiliated with

Also associated with

Rating

Tube expander does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1000490