Fast acting gate

Details Fast acting gate Fast acting gate

2011-03-29

2011-03-29

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

With closures and plugs

C138S09600T, C138S092000, C220S323000, C220S321000, C292S256690

Reexamination Certificate

active

07913717

ABSTRACT:
The invention can be used in pipelines, any devices, man holes and arrangements, at any pressures and working conditions for closable large-diameter pipes. The object of the present invention is to improve serviceability of a gate. The inventive gate comprises a lid consisting of a flange and a bottom which is caved-in inwards the pipe, a sleeve provided with a supporting ring which is welded to the bottom, arresting elements in the form of sectors inserted into a circular recess of the pipe when they are radially displaced on the flange along clamping bolts and on the supporting ring by the action of the inclined surface of a drive nut, are arranged on the end face of the flange and on the supporting ring. The nut is embodied in the form of a truncated pyramid provided with T-slots on lateral surfaces thereof. The sectors are provided with T-shaped tenons enabling movement of the sectors along the end surfaces of strengthening ribs, control markers are mounted on the sectors, a locking plate provided with a lever, said plate lowering into a gap embodied between the sectors and locking them by the action of a pneumatic cylinder in the presence of excessive pressure inside a closable pipe is arranged inside the lid. The nut may be embodied in the form of a truncated cone. The lid is mounted on articulated joints; the pipe with the lid is covered by a casing.

REFERENCES:
patent: 3155116 (1964-11-01), Ver Nooy
patent: 3667649 (1972-06-01), Thillet
patent: 3672403 (1972-06-01), Wilson et al.
patent: 3766947 (1973-10-01), Osburn
patent: 4315577 (1982-02-01), Bernson, Jr.
patent: 4387740 (1983-06-01), Vanzant
patent: 4693278 (1987-09-01), Wilson et al.
patent: 6003558 (1999-12-01), Neto et al.
patent: 6029709 (2000-02-01), Burgess
patent: 6286553 (2001-09-01), Morgan
patent: 7533699 (2009-05-01), Cellemme et al.
patent: 7665485 (2010-02-01), Fulgosi
patent: 2005/0161957 (2005-07-01), McGuire
patent: 2249135 (2005-03-01), None

Affiliated with

Also associated with

Rating

Fast acting gate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fast acting gate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast acting gate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2767922