Removable shutter for an orifice accessible only through a narro

Details Removable shutter for an orifice accessible only through a narro Removable shutter for an orifice accessible only through a narro

1987-08-24

1988-11-08

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

376204, F16L 5512

Patent

active

047828633

ABSTRACT:
The shutter is composed of an assembly three independent panels comprising: a central panel (2) having a flange (6) for fastening to the orifice to be closed and having a seal and two rectilinear lateral rims (16, 18), and two side panels (1, 3), each comprising, on one part of its periphery, a flange (5, 7) for fastening on the periphery of the orifice to be closed, and which is provided with a seal, and, on the other part of its periphery, a rectilinear rim (12, 14) which forms a face for support on one of the lateral rims (16, 18) of the central panel (2) and on which are mounted members (20) for positioning the side panels (1, 3) on one of the lateral rims (16, 18) of the central panel.

REFERENCES:
patent: 4482076 (1984-11-01), Wentzell
patent: 4483457 (1984-11-01), Schukei et al.
patent: 4637588 (1987-01-01), Wihelm et al.

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