Lined pipe joint and seal

Pipe joints or couplings – With casing – lining or protector – Lined

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

285110, 285355, 285924, 2771168, 277152, 277 29, F16L 914

Patent

active

052826520

ABSTRACT:
A lined pipe joint with an improved collar seal and pipe lining end therefor. The pipe lining end is disposed at the end of the liner in the pipe. The lining end is adapted to shoulder against grouting material which holds the liner in place such that longitudinal contraction of the liner is prevented. The lining end also has a tapered bore therein which compensates for any inward deflection of the pipe section when threadingly engaged with a pipe fitting. The collar seal fits within the end of a pipe section which is to be connected to a pipe fitting. A sealing check valve on the collar seal provides sealing between the collar seal and the pipe section when pressure within the pipe section is greater than pressure outside the collar seal. The sealing check valve allows relief of pressure outside the collar seal into the pipe section when the pipe section is depressurized, so that damaging inward deflection of the pipe liner is prevented. A method of assembling the pipe joint is also disclosed.

REFERENCES:
patent: 317408 (1885-05-01), Moeser
patent: 343246 (1886-06-01), Lee
patent: 924039 (1909-06-01), Clark
patent: 1188485 (1916-06-01), Pruyn
patent: 1816293 (1931-07-01), Oberhuber
patent: 2572058 (1951-10-01), Sarosdy
patent: 2746486 (1956-05-01), Gratzmuller
patent: 2901269 (1959-08-01), Rickard
patent: 2915322 (1959-12-01), Dunlop
patent: 2932531 (1960-04-01), Briechle
patent: 3202562 (1965-08-01), Lang et al.
patent: 3266821 (1966-08-01), Safford
patent: 3355142 (1967-11-01), Kammerer, Jr. et al.
patent: 3521913 (1968-08-01), Verhein et al.
patent: 3537731 (1970-11-01), Reddy
patent: 3955834 (1976-05-01), Ahlrot
patent: 4182519 (1980-01-01), Wilson
patent: 4318547 (1982-03-01), Ericson
patent: 4400019 (1983-08-01), Fruck
patent: 4507842 (1985-04-01), Werner
patent: 4541655 (1985-09-01), Hunter
patent: 4549752 (1985-10-01), Nimke et al.
patent: 4664421 (1987-05-01), Jones
patent: 4709946 (1987-12-01), Hunter
patent: 4773479 (1988-09-01), Guy
patent: 4848807 (1989-07-01), Christianson
patent: 4852655 (1989-08-01), Guy
patent: 4856828 (1989-08-01), Kessler et al.
patent: 4921258 (1990-05-01), Fournier et al.
patent: 4962958 (1990-10-01), Takei

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Lined pipe joint and seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-575590

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.