F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/67.11
F15B 13/02 (2006.01) F16D 25/12 (2006.01) F16L 39/00 (2006.01)
Patent
CA 1215609
TITLE Dual-Rotary Union, Rotational Isolation Adapter ABSTRACT OF THE DISCLOSURE A dual-rotary union, rotational isolation adapter according to the teachings of the present invention is dis- closed bridging between a rotary union in fluid communication with a source of fluid pressure and a rotation control ap- paratus portion rotatable with respect to a shaft. In the present invention, an adapter body is rotatably and remove- ably secured to the end of the shaft. In its most preferred form, the adapter body is rotatably mounted by a pin thread- ably received in the end of the shaft and rotatably mounted by a bearing received within a first cavity formed in the adapter body. In its most preferred form, the rotary union is received within a second cavity formed in the adapter body opposite the first cavity. Thus, the adapter body is rotatable with respect to and rotatably isolated from the source of fluid pressure by the rotary union. Additionally, the adapter body is simultaneously rotatable with respect to and rotatably isolated from the shaft by the bearing ro- tatably mounting the shaft securement pin. Fluid communi- cation can then be provided between the rotational control apparatus portion and the rotary union for activating the rotational control apparatus portion. Thus, the body por- tion rotates with the rotational control apparatus portion and is rotatably independent from the shaft and the source of fluid pressure.
474006
Dayen Leonid
Hanks James V.
Nexen Group Inc.
Rogers Law Office
LandOfFree
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