E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/71
E21B 17/10 (2006.01)
Patent
CA 1232538
ABSTRACT OF THE DISCLOSURE Improvements in well bore centralizers; improvements in centralizers which may be shipped by the manufacturer unassem- bled, occupying a small volume of space, and later assembled; a field-assemblable casing centralizer consisting of a pair of collars and connecting outwardly bowed leaf springs secured to the collars by a cooperating leaf spring end and collar structure and relief thereof permitting both rivet and weld attachments.
483796
Antelope Oil Tool Manufacturing Company
Gowling Lafleur Henderson Llp
LandOfFree
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