Plugcocks

Details Plugcocks Plugcocks

1985-11-14

1986-07-08

Chambers, A. Michael

Fluid handling

Processes

Cleaning, repairing, or assembling

137241, 251309, 251368, 99453, F16K 502

Patent

active

045987289

ABSTRACT:
The present invention relates to plugcocks or stopcocks, and the method of producing the same. The plugcocks are formed of two primary elements a body and a plug or stem member rotatably mounted therein. The plug member has the shape of a cone the bottom base of which is larger than the top base both the body and the plug or stem being in a plastic material. The invention addresses itself to special problems which arise when a plugcock of plastic material is used in permanent liquid food handling and processing installations such as the milk industry. The problems may include the following: action of heat, rigidity, relative deformations and dilatations. The main characteristic is that the body is at least partly manufactured of PVDF (vynilidene fluoride) and the plug of a thermoplastic which has a rigidity which is maintained at 100.degree. C. The plug may be made of polyolefin selected from the group of polypropylene and polyethylene of high density f.i. of PTFE (polytetrafluorethylene).

REFERENCES:
patent: 3185179 (1965-05-01), Harautuneian
patent: 3481367 (1969-12-01), Deuschle
patent: 3698683 (1972-10-01), De Angelis
patent: 3913625 (1975-10-01), Gazda et al.
patent: 3913886 (1975-10-01), Di Cicco
patent: 4003403 (1977-01-01), Nehring
patent: 4266754 (1981-05-01), Ninomiya et al.
patent: 4353763 (1982-10-01), Simons
Michaud, "PVF.sub.2 ", Modern Plastics Encyclopedia, vol. 51, No. 104, p. 36, Oct. 1974.

Affiliated with

Also associated with

Rating

Plugcocks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plugcocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plugcocks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1446538