Pipe joints or couplings – With assembly means or feature
Patent
1995-12-08
1998-05-19
Nicholson, Eric K.
Pipe joints or couplings
With assembly means or feature
285364, 285320, F16L 2300
Patent
active
057527245
ABSTRACT:
A coupling device for ducts comprises locking elements movably mounted in a circumferential succession on an end flange of a first duct having a longitudinal axis, moving member for moving said locking elements from a first position to a second position where said locking elements are engaged with an end flange of a second duct to keep it against the end flange of the first duct, elastically stressed floating ring seal members housed in a sliding and oscillating manner in a respective seat provided in the end flange of the first duct. Each locking element comprises a jaw rotatable around a rotation axis which is parallel to the longitudinal axis of the first duct. The moving member comprises a ring rotatably mounted on said first duct, said ring having a plurality of toothed sectors each engaged with a respective pinion fixedly mounted on a respective locking element.
REFERENCES:
patent: 4113283 (1978-09-01), Curtis et al.
patent: 4138149 (1979-02-01), Bormioli
patent: 4202567 (1980-05-01), Paddington
patent: 4309049 (1982-01-01), Chevallier
patent: 4722557 (1988-02-01), Bormioli
patent: 4730850 (1988-03-01), Takahashi
patent: 4923219 (1990-05-01), Bormioli
patent: 5518278 (1996-05-01), Sampson
patent: 5586789 (1996-12-01), Bently
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