Title: Pipe couplings

Abstract: A pipe coupling is disclosed in which two identical tubular parts, to receive pipe ends, each have a flange at one end thereof and are held together, via their flanges, by a clamping ring which has a radially inwardly facing groove which receives the flanges. Each flange on its side remote from the other flange slopes outwardly from the periphery of the tubular part towards said one end thereof providing a ramp surface engaged by the free edge of a respective one of the two side walls of the inwardly facing groove of the clamping ring so that a circumferential tension in the clamping ring produces a wedging action urging the flanges into engagement with each other. In a variant each of the two tubular parts is angled with respect to its end flange so that by adjusting the tubular parts relative to each other about the common axes of their flanges, the angle between the axes of the main portions of the tubular parts can be adjusted, thus providing a pipe bend of adjustable angle.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Nash, David D. (Brownhills West, GB)

Application Number: 816642
Filing Date: 1977-07-18
Publication_date: 1979-08-07
Assignee: Durapipe Limited (Cannock, GB2)
Primary Class(es): 285/106 285/112, 285/184, 285/367
Other Classes:
US Patent Ref:

1854855	Apr, 1932	Nakashima	285/106.
2581047	Jan, 1952	Salmond et al.	285/184.

Other Refs: 7013118054692306642964665

Jan, 1965	CA
May, 1951	DE
Sep, 1974	DE
Feb, 1950	FR

Primary Examiner: Arola, Dave W.
Assistant Examiner:
Attorney: Burns, Doane, Swecker & Mathis