Manhole/access cover and frame assemblies

Details Manhole/access cover and frame assemblies Manhole/access cover and frame assemblies

1983-01-19

1985-02-12

Novosad, Stephen J.

Road structure, process, or apparatus

Pavement

Vault cover-closure

52 20, E02D 2914

Patent

active

044988044

ABSTRACT:
In a manhole/access cover and frame assembly the cover is supported on the frame by pairs of downwardly facing, oppositely inclined support surfaces on the cover which are engageable respectively with corresponding upwardly facing, oppositely inclined support faces on the frame, and the cover has a substantially continuous downwardly facing ridged peripheral sealing surface which, when the cover is supported on the frame, overlies a substantially continuous upwardly facing ridged peripheral sealing surface on the frame. The engagement between the aforesaid support surfaces so locates the cover with respect to the frame that ridges on the sealing surfaces are interleaved but are held out of supporting contact with one another along substantially the whole of their length, so that the tortuous path between the ridges may be packed with grease to provide a gas and water tight seal.

REFERENCES:
patent: 1940924 (1933-12-01), Taylor
patent: 3218942 (1965-11-01), Raquet
patent: 3367071 (1968-02-01), MacLaren
patent: 3926533 (1975-12-01), Binette
patent: 3999335 (1976-12-01), Nagy et al.
patent: 4174183 (1979-11-01), Ferns

Affiliated with

Also associated with

Rating

Manhole/access cover and frame assemblies 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/access cover and frame assemblies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manhole/access cover and frame assemblies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1387212