Fluid handling – Destructible or deformable element controlled – Heat destructible or fusible
Patent
1976-06-25
1977-11-29
Wayner, William E.
Fluid handling
Destructible or deformable element controlled
Heat destructible or fusible
137 77, 1262875, 169 42, 251301, 251303, F16K 1304, F16K 1740
Patent
active
040600963
ABSTRACT:
The ventilator valve of the invention includes a housing incorporating a plate portion having an aperture forming at least part of a passage for air to flow through the housing. This plate portion forms a base adjacent to which a valve plate is rotatably mounted, in a plane substantially parallel thereto. A ring-like member is fixed to said base plate to dispose adjacent the outer periphery of the valve plate. This ring member embodies means defining a plurality of circularly spaced recesses in which a locking element on the valve plate may be selectively engaged. The engagement of the locking element in one of said circularly spaced recesses causes the valve plate to be in a valve-open position, in which position it is clear of at least a portion of the aperture in said plate portion of the housing. The locking element embodies means arranged to respond to a predetermined temperature level of its environment to disable the engaged relation thereof to said ring member, in which event said valve plate is caused to move, under the influence of either of biasing means or gravity, to a valve-closed position in which it seals the aperture in the base plate and thereby closes the flow passage which is normally provided through said housing.
REFERENCES:
patent: 795840 (1905-08-01), Klein
patent: 1774395 (1930-08-01), Murray
patent: 3538929 (1970-11-01), Botkin
patent: 3633600 (1972-01-01), Sadamori
patent: 3825182 (1974-07-01), Bauchmann
Bloom Jerome P.
Tapolcai, Jr. William E.
Wayner William E.
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