Method of making a coupling for rigid pressure pipe

Details Method of making a coupling for rigid pressure pipe Method of making a coupling for rigid pressure pipe

1980-03-31

1982-05-11

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156165, 156172, 156229, 285423, B65H 8100, F16L 2102

Patent

active

043291937

ABSTRACT:
A coupling comprises a body of fiber glass reinforced plastic which has a rubber sleeve embedded therein. The rubber sleeve is a one piece unit which includes specially shaped sealing gaskets on either end and has a rubber liner spanning the area between these sealing gaskets. This rubber sleeve is stretched onto a steel and plastic molding mandrel. This stretching places the rubber liner under tension which reduces the cross-sectional area of the liner and compensates for thermal expansion of the liner during curing. The mandrel/sleeve combination is rotated in order to wind a thermosetting resin impregnated fiber glass roving around the outer circumference of the mandrel/sleeve combination, thus embedding the sleeve in the fiber glass reinforced resin matrix. The thermosetting resin is cured at elevated temperatures, hardening into a rigid coupling with the embedded rubber sleeve integral therewith. Thereafter the hardened coupling is stripped from the steel and plastic mandrel and subjected to a further curing and finishing operation.

REFERENCES:
patent: 2896976 (1959-07-01), Wiltse
patent: 3407101 (1968-10-01), Lockshaw
patent: 3462175 (1969-08-01), Johnson
patent: 3743329 (1973-07-01), Wesel
patent: 4003541 (1977-01-01), Schuldink
patent: 4174125 (1979-11-01), Wyss

Affiliated with

Also associated with

Rating

Method of making a coupling for rigid pressure pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a coupling for rigid pressure pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a coupling for rigid pressure pipe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-754854