Relief valve

Details Relief valve Relief valve

1993-12-14

1994-10-11

Shoap, Allan N.

Flexible bags

With venting or ventilation means

Opening in bag material

137246, 137533, B65D 3301

Patent

active

053541332

ABSTRACT:
A relief valve (6) includes a valve body (5), where a covering disk (1) holding a membrane (2) is completely built in. The axial dimension of the relief valve (6) coincides with the thickness of the valve body (5). The upper surface of the relief valve is flat. The application of the relief valve does not modify the external appearance of a container since the faying surface is also flat.

REFERENCES:
patent: 3572377 (1971-03-01), Graham et al.
patent: 3799427 (1974-03-01), Goglio
patent: 3949934 (1976-04-01), Goglio
patent: 4271241 (1981-06-01), Hooke et al.
patent: 4444219 (1984-04-01), Hollenstein

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