Method and apparatus for placing foamed plugs

Details Method and apparatus for placing foamed plugs Method and apparatus for placing foamed plugs

1974-11-20

1976-05-11

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

138 89, 166295, 264 469, B29D 2704, F16L 5510

Patent

active

039564398

ABSTRACT:
For manipulating a length of non-rigid tubing into position around a swing joint (which includes a 90.degree. fitting) in an underground pipe, a rigid guide tube (through which the non-rigid tubing may be passed) is utilized. The lower end of this guide tube is landed in the 90.degree. fitting, and a wedging member or whipstock, manipulatable from the surface, is operated to hold this end of the guide tube solidly in position in the 90.degree. fitting. After the guide tube is thus secured, the non-rigid tubing is passed down through the guide tube and around the 90.degree. fitting into a laterally-extending pipe; then, a foam-forming composition is pumped through the non-rigid tubing into this latter pipe to form a foamed plug therein.

REFERENCES:
patent: 3084719 (1963-04-01), Wallace et al.
patent: 3116799 (1964-01-01), Lemons
patent: 3294121 (1966-12-01), Powell et al.
patent: 3310615 (1967-03-01), Bender
patent: 3339636 (1967-09-01), Frisby
patent: 3340336 (1967-09-01), Bender
patent: 3710812 (1973-01-01), Wise
patent: R21668 (1940-12-01), Carroll
st. Onge, H. S., "Updating Age Sewers Without Trenching", in Engineering and Contract Record, July, 1974, pp. 40, 41 and 44.

Affiliated with

Also associated with

Rating

Method and apparatus for placing foamed plugs 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 and apparatus for placing foamed plugs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for placing foamed plugs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1303929