Method and apparatus for lining manhole assemblies and the like

Details Method and apparatus for lining manhole assemblies and the like Method and apparatus for lining manhole assemblies and the like

1986-07-09

1988-06-21

Raduazo, Henry E.

Static structures (e.g., buildings)

With entrance for persons or objects in horizontal or...

Masonry or concrete

5230917, 404 25, E02D 2914

Patent

active

047517999

ABSTRACT:
Method and apparatus for providing liners in manhole assemblies, which liner is comprised of a plurality of liner sections joined together to form the inner corrosion resistant surface of each manhole member. The liner section define the inner surface of the manhole member being molded. Cast material is poured into the mold and allowed to set. The liner surface engaging the cast material contains integral substantially T-shaped projections which anchor the liner sections to the cast member. The tops and bottoms of each liner section extend around the surface of the section engaging the next adjacent section joined thereto to prevent toxic materials from reaching a cast material. The liner sections are theroplastic vacuum formed whereby the sheet forming the liner section is drawn against substantially T-shaped strips arranged upon the mold member within the vacuum thermo-forming equipment to provide the aforementioned integral T-shaped anchoring projections.

REFERENCES:
patent: 1712510 (1929-05-01), Monie
patent: 2816323 (1957-12-01), Manger
patent: 3424239 (1969-01-01), Coudray
patent: 3438157 (1969-04-01), Monica
patent: 3439461 (1969-04-01), Chandler
patent: 4089139 (1978-05-01), Moffa
patent: 4128981 (1978-12-01), Juba
patent: 4408420 (1983-10-01), Haase
patent: 4592674 (1986-06-01), Baliva
patent: 4621941 (1986-11-01), Ditcher

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-924112