Quick opening internal manway for towers

Details Quick opening internal manway for towers Quick opening internal manway for towers

1980-01-31

1981-10-13

Clements, Gregory N.

Static structures (e.g., buildings)

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

With additional enclosure structure; e.g., manhole

49367, 49369, 49464, 49465, 261114TC, E02D 2914

Patent

active

042940494

ABSTRACT:
A manway cover is formed using two like door panels made of lightweight, corrosion-resistant material which are hand operable from either side of the manway and can be installed without tools.

REFERENCES:
patent: 11227 (1854-07-01), Ingalls
patent: 790034 (1905-05-01), Davison
patent: 795687 (1926-10-01), Cameron
patent: 909111 (1909-01-01), Paulson
patent: 1044383 (1912-11-01), Hatch
patent: 1350306 (1920-08-01), Forshee et al.
patent: 2105501 (1938-01-01), Parsons
patent: 2174989 (1939-10-01), Lyons
patent: 3798848 (1974-03-01), Campagna
patent: 4120919 (1978-10-01), McClain
patent: 4133852 (1979-01-01), Di Nicolantonio et al.

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