In-floor access pit frame and cover system

Details In-floor access pit frame and cover system In-floor access pit frame and cover system

1993-10-15

1995-05-09

Friedman, Carl D.

Static structures (e.g., buildings)

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

With additional enclosure structure; e.g., manhole

404 25, E02D 2914

Patent

active

054129117

ABSTRACT:
An in-floor access pit unit for use in a floor having a flooring of a predetermined thickness thereon. The access pit basically comprises a rigid liner, a lower frame, an intermediate frame, a cover assembly, and a height adjusting mechanism. The cover assembly comprises an upper frame in which a cover plate is mounted to provide a recess for receipt of a piece of the same flooring material as on the floor in which the access pit is located. The cover assembly is mounted in the intermediate frame by the height adjusting mechanism. That mechanism comprises plural bolts and nuts for adjusting the height of the intermediate frame and the cover member so that the piece of flooring within the cover assembly is flush with the surrounding flooring. The intermediate frame includes a downwardly depending flange which is disposed closely adjacent a sidewall of the lower frame to prevent the ingress of material therebetween. A sealing gasket is provided between the cover assembly and the intermediate frame to prevent the egress of gases or fumes from the access pit.

REFERENCES:
patent: 3975870 (1976-08-01), Naka
patent: 4101236 (1978-07-01), Meyer
Metaline Trench & Access Covers publication.

Affiliated with

Also associated with

Rating

In-floor access pit frame and cover system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with In-floor access pit frame and cover system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-floor access pit frame and cover system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1697501