Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole
Patent
1990-11-13
1992-03-17
Smith, Gary L.
Static structures (e.g., buildings)
With entrance for persons or objects in horizontal or...
With additional enclosure structure; e.g., manhole
521275, 285 42, 404 26, E02D 2914
Patent
active
050956671
ABSTRACT:
A telescopic manhole or storm drain installation includes a riser assembly provided with an upper section and adjacent lower section the former of which comprises a side wall defining an inverted frustoconical configuration while the latter provides a vertically disposed member having external threads cooperating with a stationary threaded collar. To prepare for resurfacing of a roadway or the like, no excavation about the riser is required prior to its elevation by use of a tool which engages mating receptors located within the interior of the riser. Rotation of the tool rotates the riser assembly within the threads of the collar until the new, elevated plane is achieved. The effort required to displace the riser is minimial due to the movement of its outer surface away from any grouting or roadway base previously abutting the riser. Risers with non-circular upper sections and lids are accommodated by forming the riser of separate upper and lower sections having a sliding joint structure therebetween. Synthetic polymeric materials are proposed for both the risers and lids having a somewhat similar external configuration but employing lids provided with a body of substantial height and formed with a dome-shaped bottom surface such that vertical compressive forces are transmitted radially thereby and conveyed to the surrounding riser side wall.
REFERENCES:
patent: 645537 (1900-03-01), Reardon
patent: 1828601 (1931-10-01), Frye
patent: 1945707 (1934-02-01), Sharp
patent: 1991130 (1935-02-01), Warren
patent: 2626674 (1953-01-01), Boosey
patent: 3331295 (1967-07-01), Sorrell
patent: 3629981 (1971-12-01), McCaffery
patent: 3769768 (1973-11-01), Bertrand
patent: 3967836 (1976-07-01), Izzi, Sr.
patent: 3974599 (1976-08-01), Grosh
patent: 4075796 (1978-02-01), Cuozzo
patent: 4325405 (1982-04-01), Christo
patent: 4337005 (1982-06-01), LeBaron
patent: 4597692 (1986-07-01), Gruenwald
patent: 4662777 (1987-05-01), Newton
patent: 4737220 (1988-04-01), Ditcher et al.
patent: 4969771 (1990-11-01), Bowman
Morina John
Ryan Chester
Ding Suzanne L.
Litman Richard C.
Smith Gary L.
LandOfFree
Telescopic manhole and storm drain installation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Telescopic manhole and storm drain installation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telescopic manhole and storm drain installation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1467468