Plastic article or earthenware shaping or treating: apparatus – Product or preform repair or restoring means
Patent
1993-06-08
1995-07-11
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Product or preform repair or restoring means
249 10, 249 57, 249 83, 264 32, 264 35, 264 36, 264262, 404 25, 405 38, 405 41, 425 59, B29C 3300, B29C 6570
Patent
active
054315530
ABSTRACT:
An apparatus is provided for installation in a manhole assembly. The mold apparatus is filled with a sealing material to establish a solid bond that blocks inflow of fluids at the joint between abutting components of the manhole assembly. The apparatus includes an open ring, a retaining band for urging the open ring into contact with the manhole so that the open ring defines an annular channel at the joint, and a sealing material dispenser for conveying sealing material into the annular channel. The sealing material hardens in the annular channel to provide the solid bond at the joint between the two manhole components. The manhole components may be an abutting manhole frame and manhole, or two abutting sections of manhole.
REFERENCES:
patent: 2930295 (1960-03-01), Hale
patent: 3248119 (1966-04-01), Smith et al.
patent: 3570802 (1971-03-01), Miller
patent: 3621623 (1971-11-01), Downes
patent: 3920347 (1975-11-01), Sauriol et al.
patent: 4132516 (1979-01-01), Story
patent: 4187647 (1980-02-01), Hall
patent: 4188151 (1980-02-01), Hall
patent: 4370113 (1983-01-01), Nakashin
patent: 4469467 (1984-09-01), Oodill et al.
patent: 4540310 (1985-09-01), Ditcher et al.
patent: 4557625 (1985-12-01), Jahnke et al.
patent: 4582449 (1986-04-01), Vosswinkel
patent: 4759656 (1988-07-01), Wilson
patent: 4772154 (1988-09-01), Caroulle
patent: 4800054 (1989-01-01), Roestenberg
patent: 4861248 (1989-08-01), Ben
patent: 4861401 (1989-08-01), Miura et al.
patent: 4927163 (1990-05-01), Gagas
patent: 4957389 (1990-09-01), Neathery
patent: 4986862 (1991-01-01), Matsufuru
patent: 5017313 (1991-05-01), Trimble
patent: 5063006 (1991-11-01), Tahara
patent: 5201600 (1993-04-01), Topf, Jr. et al.
Leyson Joseph
Miller Pipeline Corporation
Woo Jay H.
LandOfFree
Manhole seal molding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manhole seal molding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manhole seal molding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-499533