Pipe closure device

Details Pipe closure device Pipe closure device

1982-01-22

1985-03-26

Marcus, Stephen

Pipes and tubular conduits

With closures and plugs

Inflation stem type

F16L 5512

Patent

active

045067058

ABSTRACT:
A closure device for an opening in a pipe and the like is provided which includes an elastomeric sealing ring having a threaded bore which tapers from an outer to an inner end of the sealing ring. A threaded plug having a tapered configuration from an outer to an inner end thereof is threadably receivable in the sealing ring whereby the sealing ring is expanded and engages the opening in sealing relation. The plug includes a multi-sided boss fixedly attached to and extending from its outer end. The sealing ring engages the opening when the plug is received in the bore thereof in a frictional engagement whereby the sealing ring resists rotation and axial sliding within the opening as the plug is axially advanced into the bore.

REFERENCES:
patent: 2092182 (1937-09-01), Ray
patent: 2355492 (1944-08-01), White
patent: 2493452 (1950-01-01), Grigg
patent: 2652943 (1953-09-01), Williams
patent: 2661860 (1953-12-01), Albert
patent: 2685380 (1954-08-01), Moeller
patent: 2735566 (1956-02-01), Bramming
patent: 2773619 (1956-12-01), Moeller
patent: 2800242 (1957-07-01), Sauthoff
patent: 3054427 (1962-09-01), Bonnette
patent: 3307732 (1967-03-01), Roberts, Sr. et al.
patent: 3412759 (1968-11-01), Potter et al.
patent: 3447712 (1969-06-01), Galasso et al.
patent: 3451583 (1969-06-01), Lee
patent: 3471179 (1969-10-01), Sixt
patent: 3494504 (1970-02-01), Jackson
patent: 3525365 (1970-08-01), Meulendyk
patent: 3574312 (1971-04-01), Miller
patent: 3993102 (1976-11-01), Polster et al.
patent: 4113006 (1978-09-01), Clapp
World Screw-Thread Forms, American Machinist, Reference Book Sheet, 1961, p. 93.
Photographs and Promotional Materials for Stopper Manufactured by American Products Company.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1289719