Device for closing an opening, particularly a street manhole

Details Device for closing an opening, particularly a street manhole Device for closing an opening, particularly a street manhole

2011-05-17

2011-05-17

Stashick, Anthony (Department: 3781)

Receptacles

Closures

Pivotable,

C220S832000, C404S025000

Reexamination Certificate

active

07942289

ABSTRACT:
The invention relates to a device for closing an opening, particularly a man hole. The inventive device comprises a frame (4) and a cover (6) which is articulated to the frame (4) around a first axis (X-X) by means of a hinge (14). The device also comprises a locking means (16) having a locked configuration, whereby the cover is held open in a first position, and an unlocked configuration, whereby said cover (6) is disposed in a second position in which it can be pivoted around the axis (X-X). The aforementioned hinge (14) is designed such that, while resting on the frame, the cover (6) can pivot around a second horizontal axis (Y-Y). Moreover, the cover is pivoted around said second axis (Y-Y) in order to move same between the two positions. The invention is suitable for cast iron man holes.

REFERENCES:
patent: 1923481 (1933-08-01), Ford
patent: 1925635 (1933-09-01), Hartley
patent: 2300076 (1942-10-01), Ueda
patent: 4139114 (1979-02-01), Long et al.
patent: 4840514 (1989-06-01), Defrance et al.
patent: 4914781 (1990-04-01), Sokn et al.
patent: 7108447 (2006-09-01), Akkala et al.
patent: 0 681 066 (1995-11-01), None
patent: 1 544 365 (1979-04-01), None

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