Manhole cover receiving frame

Details Manhole cover receiving frame Manhole cover receiving frame

1997-09-22

1999-11-02

Friedman, Carl D.

Static structures (e.g., buildings)

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

With additional enclosure structure; e.g., manhole

52 19, 404 25, 404 26, E02D 2914

Patent

active

059747412

ABSTRACT:
A manhole cover receiving frame includes an outer tube and a cover receiving frame. The cover receiving frame may be axially moved relative to the outer tube so that an upper surface of the manhole cover receiving frame matches the level of the surrounding road surface. The cover receiving frame is moved by a plurality of bolts threaded in the outer tube.

REFERENCES:
patent: 3858998 (1975-01-01), Larsson et al.
patent: 4582450 (1986-04-01), Neil
patent: 4906128 (1990-03-01), Trudel
patent: 4925337 (1990-05-01), Spiess et al.
patent: 5205668 (1993-04-01), Adams
patent: 5513926 (1996-05-01), Prescott

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2120137