Ridge Centrifuge
US $49.00
corrugated pipes
Since the spacer attached fast to the periphery of the pipe coupling proper sets and keeps a fixed closing distance for the lock cylinder helically tacked to the pipe coupling proper, the leading terminal part of the corrugated pipe is depressed over a fixed distance onto the seal ring inside the pipe coupling proper during the union of corrugated pipes and the corrugated pipes are consequently joined in an infallibly sealed state. Moreover, since the rigid ring inserted in the circumferential groove part formed in the inner wall of the through hole of the lock cylinder is nipped between the tapered surface formed to continue into the circumferential groove part and the leading terminal face of the supporter, this rigid ring is guided by the tapered surface concentrically with the through hole of the lock cylinder and retained in the concentric state by the pressure of the supporter. When the corrugated pipe is inserted into the through hole of the lock cylinder held in the ensuant state, the leading terminal part of the corrugated pipe enters the central part of the rigid ring and the outside-diameter ridges of the corrugated pipe force their way through the rigid ring while expanding the rigid ring in the centrifugal direction. When the rigid ring coincides with any of the outside-diameter ridges, the expanded rigid ring contracts in the concentric direction and comes into engagement with that outside-diameter ridge and prevents the corrugated pipe from accidental extraction.
Now, this invention will be described more specifically below with reference to embodiments illustrated in the drawings.
As illustrated in FIG. 1, the interior of a pipe coupling proper or pipe coupling body 1 is provided on the leading terminal side thereof with a large-diameter through hole 2 and on the recessed part side thereof with a small-diameter through hole 3 connected to the large-diameter through hole 2. A circumferential groove 4 and a stopper part 6 adjoin the circumferential groove 4 and served the purpose of securing the leading terminal part of a corrugated pipe 40 which will be specifically described herein below and are formed continuously to a connecting stepped part 5 which is interposed between the large-diameter through hole 2 and the small-diameter through hole 3. A seal ring 7 for sealing the periphery of the corrugated pipe 40 is inserted in the circumferential groove 4 and prevented from falling toward the large-diameter through hole 2 side by the connecting stepped part 5. A female thread 30 is formed on the inner surface of the large-diameter through hole 2.
With reference again to FIG. 1, a lock cylinder 8 has a male thread 33 formed on the periphery thereof and therefore fits helically to the large-diameter through hole 2 of the pipe coupling proper 1. A through hole 9 conforming to the outside diameter of the corrugated pipe 40 is provided inside the lock cylinder 8. A circumferential groove part 10 is formed in the rear terminal side inner wall of the through hole 9. A tapered surface 12 is provided on the leading terminal side inner wall of the circumferential groove part 10. A rigid ring 11 is contained in the circumferential groove part 10. A rear terminal side through hole 9a opening in the rear terminal of the lock cylinder 8 and communicating with the circumferential groove part 10 is formed with a diameter larger than the diameter of a leading terminal side through hole 9b of the circumferential groove part 10.
About the Author
USEC reports progress in DOE discussions (Knoxville News Sentinel)
Just days after some 326 Oak Ridge workers involved in the joint USEC
Inc.-Babcock & Wilcox American Centrifuge Project were notified they may be
laid off by December if negotiations to secure more funding for the project
aren't successful, USEC said Friday it and the U.S. Department of Energy are
making funding progress.
Centrifuge 06 - Talent Show
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