Shut-off device

Details Shut-off device Shut-off device

1990-01-22

1991-05-14

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

251185, 251192, F16K 2500

Patent

active

050147447

ABSTRACT:
In a housing having an inlet opening and an outlet opening, the shut-off mechanism has a rotary plug for interrupting the flow of flowable material through the housing. Via the rotary plug the outlet opening is gas-tightly sealed and a flow of material through the inlet opening is prevented. The rotary plug is provided with a sealing member, which is rotatable about an axis which is approximately at right angles to the axis of rotation of the rotary plug. The sealing member cooperates with the valve seat, which is associated with the outlet opening. A compression spring extends between the sealing member and the rotary plug and is laterally spaced from the axis of rotation of the sealing member. Upon a movement of the rotary plug the compression spring will impart a certain rotation of the sealing member without a need for a drive.

REFERENCES:
patent: 2261535 (1941-11-01), Wheatley
patent: 3130952 (1964-04-01), Meyer
patent: 3406943 (1968-10-01), Newell
patent: 4244393 (1981-01-01), Lehtinen
patent: 4559972 (1985-12-01), Wolf et al.

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