E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/26
E21B 4/00 (2006.01) F16L 27/00 (2006.01)
Patent
CA 1077016
ABSTRACT OF THE DISCLOSURE A rotary fluid coupling has a cylindrical housing with a cap in one end, a hollow shaft in said housing extends out of one end thereof, the housing has a port in one side and an annular channel communicating with said port, a sphere is positioned on said shaft in the area of said annular channel, passageways in said shaft and sphere establish communication between said hollow shaft and said annular channel in said housing, sealing members formed of slippery plastic material are positioned in said housing and engaged on opposite sides of said sphere and on portions of the shaft, a large sealing sleeve formed of slippery plastic material is engaged on a substanti- ally large area of said shaft and abutting one of said annular seal- ing members, the sealing members and sealing sleeve support, position, and seal the hollow shaft and sphere relative to the housing and cap. This invention is distinguishable from others by reason of the arrangement of the slippery plastic seals which hold, support and seal the moving parts of the coupling. -2-
307033
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