Loading and locking mechanism

Pipe joints or couplings – Essential catch – Coil spring

Patent

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Details

285306, F16L 3900

Patent

active

046782109

ABSTRACT:
The loading and locking mechanism includes a first cylindrical member with means defining a circumferential groove therein having a first surface of revolution disposed at an angle with the axis of the first cylindrical member. Cooperating with the first cylindrical member is a second cylindrical member having an axial opening sized to accommodate the first cylindrical member and an inside surface groove having a second surface of revolution disposed at an angle with the axis of the second cylindrical member. A continuous ellipsoidal spring having canted coils is disposed in both first and second cylindrical member grooves for forcing the first and second surfaces of revolution away from one another to cause axial loading between the first and second cylindrical members. Additional locking surfaces may be provided each of the first and second grooves which are disposed generally perpendicular to the first and second cylindrical member axis.

REFERENCES:
patent: 2101346 (1937-12-01), Robertson
patent: 2154275 (1939-04-01), Linn
patent: 2538683 (1951-01-01), Guiler et al.
patent: 2797937 (1957-07-01), Frishof
patent: 2846240 (1958-08-01), Beyer
patent: 3250331 (1966-05-01), Boyle
patent: 3359617 (1967-12-01), Baumler
patent: 3377075 (1968-04-01), Feller
patent: 3910566 (1975-10-01), Pedersen et al.

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