Pipe joints or couplings – Frangible element
Patent
1977-10-03
1978-10-17
Arola, Dave W.
Pipe joints or couplings
Frangible element
285 33, 285319, 285322, 285410, 285414, 285DIG21, F16L 3708
Patent
active
041205197
ABSTRACT:
A readily separable fastening structure for holding a pair of cylindrical sections together in axial alignment includes annular rim members attached to the inside surfaces near the ends of the cylindrical members, one of which has an outwardly extending flange spaced from the end of its corresponding cylindrical member to form an annular groove and the other of which is adapted to telescope within the first such rim member, the other such rim member also including an inwardly extending flange. A plurality of spaced members having spring fingers are attached to the outside of the second cylindrical member and extending beyond the end thereof, the spring fingers each having an inwardly extending ridge and a groove on the outside of the ridge. A small diameter cable is positioned in said grooves, and tensioning members are included for pulling said cable tightly around said fingers to pull the inwardly extending ridges into said annular groove to lock said cylindrical members together. A pyro device is positioned to cut the cable to effect automated sequencing separation of the cylindrical members.
REFERENCES:
patent: 2410297 (1946-10-01), Mahlberg
patent: 2697570 (1954-12-01), Snyder
patent: 2996316 (1961-08-01), Terhune
patent: 3131635 (1964-05-01), Steinmetz et al.
patent: 3215082 (1965-11-01), Baggs et al.
patent: 3253653 (1966-05-01), Layne
Arola Dave W.
Smith Robert C.
The Bendix Corporation
Thornton William F.
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