E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/02 (2006.01)
Patent
CA 2663309
The present invention is a sheave assembly that includes a ring supported by a support assembly instead of a solid sheave wheel supported by a central axle. The support assembly may include a plurality of rollers or a curved shoe. The ring is made of a lubricated plastic material or other similar material. The ring includes a groove for retaining the wireline or cable and an inner surface that is designed to mate with the outer surface support assembly.
La présente invention concerne un train de galets constitué d'un anneau porté par un ensemble de support et non une roue à gorge solide portée par un axe central. L'ensemble de support peut comprendre une pluralité de galets ou bien un sabot incurvé. L'anneau est en plastique lubrifié ou en tout autre matériau similaire. Il comprend une gorge qui retient le câble métallique ou le câble et une surface interne conçue pour s'accoupler avec la surface externe de l'ensemble de support.
Carlson Derek D.
Dayton Kenn
Mace Brian
Vance Russ
Vent George
Oyen Wiggs Green & Mutala Llp
Wireline Technologies Inc.
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