Pipe joints or couplings – With assembly means or feature – Guide and support
Patent
1988-03-01
1989-06-06
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Guide and support
285319, 285423, 285156, 285161, F16L 3500
Patent
active
048365807
ABSTRACT:
A connection device for use in securing an end of a corrugated pipe to a fitting such as a terminal box connector or a pipe-to-pipe coupling has an array of fingers extending axially from an annular ring, for insertion into the fitting. Enlarged head portions at the inner ends of the fingers serve to engage the ribs or corrugations on the pipe outer surface, when a pipe is inserted therepast, and also provide a differentiated camming action to secure engagement of the head portions with a corrugation of the pipe and to prevent withdrawal of the pipe from the fitting. The fitting with which the device is combined also has an axially extended inner peripheral seat against which the pipe corrugations seat, to preclude passage of concrete betwen the pipe and the fitting.
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Arola Dave W.
Gray Brian W.
Scepter Manufacturing Company Limited
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