Pipe joints or couplings – With assembly means or feature – With holding means functioning only during transportation...
Patent
1981-10-07
1984-07-03
Scanlan, Jr., Richard J.
Pipe joints or couplings
With assembly means or feature
With holding means functioning only during transportation...
285323, 285342, 285343, F16L 5500, F16L 2106
Patent
active
044575416
ABSTRACT:
The pipe coupling has an annular flange member having a tapered inner surface portion and a plurality of holes therethrough. Bolts project through the holes. A pipe-engageable collet is mounted in the flange member and has a tapered outer surface portion engaged with the tapered inner surface portion. An annular, retainer element engages a surface of the flange member from which the bolts project and overlaps an outer peripheral portion of the seal back-up member and has a plurality of holes therethrough which are in substantial alignment with the holes through the flange member. The bolts project through the holes in the retainer element whereby the bolts and the retainer element are retained in position by virtue of their mutual interengagement and the seal back-up member and collet are retained in position by virtue of the engagement of the retainer element with the seal back-up member. The coupling can be relatively easily handled and easily manipulated into position even in a confined space without risk of the back-up member, the collet, and/or the bolts becoming inadvertently disengaged.
REFERENCES:
patent: 4006921 (1977-02-01), Mohr
patent: 4138147 (1979-02-01), Manchester et al.
patent: 4239266 (1980-12-01), Mynhier
Hughes Jeremy R.
Kelly John J.
Lucas Industries Limited
Scanlan, Jr. Richard J.
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