Pipe joints or couplings – With means blocking release of holding means – Auxiliary latch
Patent
1986-09-02
1987-05-12
Callaghan, Thomas F.
Pipe joints or couplings
With means blocking release of holding means
Auxiliary latch
285 93, 285316, 1375525, 2511496, F16L 3722
Patent
active
046644202
ABSTRACT:
The present invention provides an improved, self sealing, female pneumatic coupling of the type that releasably engages a grooved nipple attached to a pneumatic tool or fixture. The conventional elements of the female coupling include a ball bearing latch that prevents removal of the grooved nipple when activated and a locking sleeve to activate the ball bearing latch. The improvement of the present invention, in a preferred embodiment, includes locking sleeve having separable segments to form a set of first, second and third combination locking tumblers each of annular configuration. A set of numbers is provided on the outer periphery of each of the tumblers. Each of the tumblers must be rotated so that a selected number thereof is opposite to an index before the locking sleeve can be moved to deactivate the ball bearing latch. As a result, removal of the tool or fixture attached to the grooved nipple is prevented by unauthorized persons not knowing the combination of the selected numbers of the locking tumblers.
REFERENCES:
patent: 2797110 (1957-06-01), Covington
patent: 3097867 (1963-07-01), Saloum
patent: 3170667 (1965-02-01), Szohatzky
patent: 3359015 (1967-12-01), Zahuranec
patent: 4060219 (1977-11-01), Crawford
patent: 4498658 (1985-02-01), Mikiya
Callaghan Thomas F.
Island Rubber & Equipment Co., Inc.
Rosenblum David M.
LandOfFree
Pneumatic self-sealing female coupling incorporating combination does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic self-sealing female coupling incorporating combination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic self-sealing female coupling incorporating combination will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1797092