Method for making polyolefin pipe connector sleeve

Details Method for making polyolefin pipe connector sleeve Method for making polyolefin pipe connector sleeve

1981-03-09

1983-07-12

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29453, 29525, 29526R, B23P 1102

Patent

active

043922945

ABSTRACT:
A connector sleeve for polyolefin pipe ends for connecting butted pipe ends by a coupling. The connector sleeve is metallic and has a pair of internal circumferential ribs mated in external grooves of the pipe end which is press-fitted within the sleeve in sealing relation. The connector sleeve has a pair of external grooves registering with the ribs formed by a pressing or rolling operation. Butted pipe ends with their fitted connector sleeves are connected by a coupling engaging the connector sleeves. The connector sleeve and pipe end have registering bevelled ends and in the fitting operation the sleeve and pipe end are axially aligned and forcefully engaged whereby the bevelled end of the connector sleeve causes the pipe end to be internally deflected and compressed in mating engagement with said connector sleeve.

REFERENCES:
patent: 2985469 (1961-05-01), Bowman, Jr.
patent: 3016605 (1962-01-01), Heckethorn
patent: 4039210 (1977-08-01), Wood et al.
patent: 4126338 (1978-11-01), Cael et al.

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