Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole
Patent
1976-08-24
1978-05-16
Purser, Ernest R.
Static structures (e.g., buildings)
With entrance for persons or objects in horizontal or...
With additional enclosure structure; e.g., manhole
521695, 52245, 523091, 52589, 52630, E02D 2914
Patent
active
040891399
ABSTRACT:
A segmented cylindrical reinforced plastic manhole structure comprising a cylindrical body surmounted by a transition element. The transition element is adapted to support a conventional manhole cover and frame assembly and has an opening closable by the manhole cover. The manhole structure body comprises a plurality of curved, nestable segments of cast or molded reinforced plastic material. Each segment is provided with vertical side edges configured to provide an interlocking joint between it and an adjacent segment and the segments may be so sized as to require two, three or more segments to complete the circumference of the manhole structure body. Each segment is provided with horizontal top and bottom edges configured to provide an interlocking joint between it and an adjacent segment thereabove or therebelow so that the segments may be arranged in tiers to provide a manhole structure body of desired height. The transition element may also be cast or molded of reinforced plastic material and may be segmented or in the form of an integral one-piece structure. A cast reinforced concrete slab-like transition element may also be used. A base member may be provided for the manhole structure body, which base member may also be cast or molded of reinforced plastic material. The segments, transition element and the base member, if used, are joined together by an appropriate adhesive sealant to form fluid-tight joints therebetween.
REFERENCES:
patent: 575553 (1897-01-01), Nelles
patent: 684708 (1901-10-01), McFall
patent: 871655 (1907-11-01), Winslow
patent: 1391336 (1921-09-01), Meiners
patent: 1793038 (1931-02-01), Zimmermann
patent: 2324039 (1943-07-01), Stone
patent: 2698193 (1954-12-01), Kennison
patent: 3212519 (1965-10-01), Paschen
patent: 3263378 (1966-08-01), Dorris
patent: 3474584 (1969-10-01), Lynch
patent: 3543457 (1970-12-01), Budlong
patent: 3672103 (1972-06-01), Kost
patent: 3850457 (1974-11-01), Bigotte et al.
patent: 3974599 (1976-08-01), Grosh
Boynton Jerald H.
Moffa Joseph
Armco Steel Corporation
Friedman Carl D.
Purser Ernest R.
LandOfFree
Segmented cylindrical reinforced plastic manhole structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Segmented cylindrical reinforced plastic manhole structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Segmented cylindrical reinforced plastic manhole structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1191316