B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 39/20 (2006.01)
Patent
CA 2685217
A metal pipe or tube comprises a first hollow cylindrical portion near a center portion of said metal pipe or tube, a second hollow cylindrical portion on at least one of the two end portions of said metal pipe or tube, and a taper portion connecting said first and second hollow cylindrical portions. The outside diameter of said first hollow cylindrical portion is DA. The outside diameter of said second hollow cylindrical portion is DB larger than the outside diameter DA of said first hollow cylindrical portion. The outside diameter of said taper portion gradually increases from DA to DB from said first hollow cylindrical portion to the second hollow cylindrical portion. The axial distance LE between points where the diameter DC = DBx0.99 and DB satisfies Expression (a) 22<=LE/((DB- DC)/2)<=115.
Akiyama Masayoshi
Kuroda Koichi
Okui Tatsuya
Gowling Lafleur Henderson Llp
Sumitomo Metal Industries Ltd.
LandOfFree
Plug, method of expanding inside diameter of metal pipe or... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plug, method of expanding inside diameter of metal pipe or..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plug, method of expanding inside diameter of metal pipe or... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1520176