B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
153/18
B21D 19/00 (2006.01) B21D 39/08 (2006.01) B21D 39/20 (2006.01) B21D 41/00 (2006.01) B23P 19/02 (2006.01)
Patent
CA 1107183
23 48,058 ABSTRACT OF THE DISCLOSURE A tube guide-expander for guiding heat exchanger tubes through tube sheet apertures from a secondary to a primary side thereof and expanding those tubes into contact with the apertures' walls. The guide-expander includes relatively axially displaceable first and second compres- sion structures and elastomeric O-rings which radially expand into contact with the tube's inner surface when axially compressed between the compression structures. The first compression structure is abuttable with the tube's end and has an axial opening therethrough. The second compression structure constitutes an elongated element which extends through the opening and has a ram element connected to the end inside the tube and a driving element connected to the end outside the tube. The ram and elon- gated elements are preferably threadably engaged so as to permit relative axial displacement therebetween when they are relatively rotated. Such relative axial displacement maintains selected degrees of axial compression on the radially expansible O-rings and provides releasable reten- tion of the guide-expanders in the tubes during guidance of the tubes through the tube sheet apertures.
337253
Mcconnell And Fox
Westinghouse Electric Corporation
LandOfFree
Tube guide-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 guide-expander, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tube guide-expander will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-720878