Apparatus for forming seal and reinforced holes through the end

Details Apparatus for forming seal and reinforced holes through the end Apparatus for forming seal and reinforced holes through the end

1997-01-22

2000-08-15

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156287, 156294, 138 98, 138109, 264154, 264263, B29C 4318, F16L 55163, B32B 3104

Patent

active

061030465

ABSTRACT:
A method and apparatus for forming sealed and reinforced holes through the end of a flexible, resin-impregnable, tubular pipe liner for securing a cable thereto and for sealing the end of the liner. The liner is installed into an existing conduit either by pulling a cable secured to holes at the front end of the liner or by eversion of the liner while securing a hold-back cable to holes at the trailing end of the everting liner. Holes are cut through the liner, and resin is impregnated into the region about each hole and hardened to form an integral grommet or reinforcement. A mold for impregnating the region about the hole includes a lower mold body with a projecting spigot and a groove thereabout. An upper mold body has a central opening with a groove thereabout, the upper mold body fitting over the spigot. A tube fits into the central opening and receives a resin, which is then forced by a plunger down the tube and allowed to harden and form a secure and reinforced hole for attaching a pull-in or hold-back rope or cable.

REFERENCES:
patent: 4776370 (1988-10-01), Long, Jr.
patent: 4910066 (1990-03-01), Foisie
patent: 5049336 (1991-09-01), Sjostrom

Affiliated with

Also associated with

Rating

Apparatus for forming seal and reinforced holes through the end does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for forming seal and reinforced holes through the end , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for forming seal and reinforced holes through the end will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2002669