Plastic and nonmetallic article shaping or treating: processes – Forming structural installations in situ – Uniting preform member with molding material
Patent
1996-03-11
1998-07-14
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Forming structural installations in situ
Uniting preform member with molding material
138 97, 264 36, 264 403, 264 405, 264514, 264573, 264269, B32B 3500, E04B 116, F16L 5518
Patent
active
057799482
ABSTRACT:
A method and apparatus for quickly and inexpensively providing a constant extrusion pressure for pipeline lining with a mortar. A mandrel is inserted in a pipeline section with a slug of mortar ahead thereof. A pushing force is applied thereto to overcome resistance to movement thereof. A constant tension pull is applied to the mandrel to effect relatively constant but effective extrusion pressure between the mandrel and the pipeline wall for extrusion of mortar on the inner wall of the pipeline section.
REFERENCES:
patent: 1768451 (1930-06-01), Hume
patent: 1951221 (1934-03-01), Tate
patent: 2293365 (1942-08-01), Scott
patent: 2377615 (1945-06-01), Crane
patent: 3041204 (1962-06-01), Green
patent: 3044136 (1962-07-01), Perkins
patent: 3108012 (1963-10-01), Curtis
patent: 3137318 (1964-06-01), Maneri et al.
patent: 3563889 (1971-02-01), Cooper, IV et al.
patent: 4038351 (1977-07-01), Koenst, Jr. et al.
patent: 4456401 (1984-06-01), Williams
patent: 4764237 (1988-08-01), Shishkin et al.
patent: 5230842 (1993-07-01), Munde
patent: 5246641 (1993-09-01), Perkins et al.
patent: 5447664 (1995-09-01), Ito et al.
patent: 5609186 (1997-03-01), Satake et al.
"Continuous Inspection Needed to Tame Pipeline Corrosion," G. Congram, Pipeline and Gas Journal, vol. 221, Dec., 1994, at p.30.
"Economic Considerations in Pipe Line Corrosion Control," L. Sharpe, Corrosion, vol. 11, May, 1995, pp. 45-58.
Perkins by Patricia R.
Perkins, deceased Alfred G.
Aftergut Karen
Simmons James C.
LandOfFree
Method of lining a pipeline using a constant extrusion pressure 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 of lining a pipeline using a constant extrusion pressure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of lining a pipeline using a constant extrusion pressure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1878800