Drop manhole precast encasement

Details Drop manhole precast encasement Drop manhole precast encasement

1984-10-15

1986-01-28

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Static constructional installations

137363, 52 20, 52 21, E02D 2912

Patent

active

045664838

ABSTRACT:
A system of modular precast encasement sections is provided to protect the outside drop of a manhole structure from damage due to weak ground support and to prevent leakage from said outside drop. Said precast encasement sections are stacked on top of a drop manhole base and on top of each other to a height sufficient to surround and support the outside drop tube. The stack of encasement sections is then capped off with a solid collar which has a circular opening of a diameter sufficient to receive the outside drop tube. This circular opening widens to form a shoulder which is adapted to receive and support thereon the lower most opening of a T-coupler for joining a supply line to the drop tube. The precast encasement sections, the solid collar, and the face of the manhole base which is to receive the stack of encasement sections are each provided with grooves on their upper faces and the solid collar and encasement sections are provided with coaligned projections along their lower faces. These grooves and projections serve to automatically align the sections with the manhole base, with the solid collar and with each other when the sections are assembled on site.

REFERENCES:
patent: 1582191 (1926-04-01), Snooke
patent: 3212519 (1965-10-01), Paschen
patent: 3562969 (1971-02-01), Little, Jr.
patent: 3695153 (1972-10-01), Dorris
patent: 4023590 (1977-05-01), Harris et al.
patent: 4337005 (1982-06-01), LeBaron
patent: 4341236 (1982-07-01), La Benz
patent: 4472911 (1984-09-01), Jooris et al.
"International Pipes' Geromics Corp", East Orange, N.J., Engineering News Record, 11/62, p. 12.

Affiliated with

Also associated with

Rating

Drop manhole precast encasement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drop manhole precast encasement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drop manhole precast encasement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1301146