Valves and valve actuation – Valve actuator is inlet or outlet – Rotary
Patent
1990-02-09
1991-05-14
Chambers, A. Michael
Valves and valve actuation
Valve actuator is inlet or outlet
Rotary
251209, 251367, 251904, F16K 3100
Patent
active
050149644
ABSTRACT:
An adjustable vent nozzle has two nozzle members turnable relative to one another, the first nozzle member having an inlet opening for communicating an interior of the nozzle with ambient atmosphere and a lower surface provided with a guiding, the second nozzle member having an outlet opening with a passage which is open in the outlet and formed to guide the guide of the first nozzle member so that in an assembled condition when one of the nozzle members is turned relative to another of the nozzle members the guide is guided in the air passage. In a predetermined angular position of the nozzle members relative to one another they can be fixed relative to one another to define a predetermined length of the passage between the inlet opening and the outlet opening and therefore to adjust an air supply through the nozzle into an interior of a device to be vented and communicating with the outlet opening. The second nozzle member has a mounting element formed for mounting on a device to be vented and including a transversely expansible projection arranged to pass through a hole in a wall of the device and then expand and anchor in the vent nozzle in the device.
REFERENCES:
patent: 2911008 (1959-11-01), DuBois
patent: 3598150 (1971-08-01), Nolan
patent: 4137945 (1979-02-01), Cutts
patent: 4183499 (1980-01-01), Swartz et al.
patent: 4298020 (1981-11-01), Inada et al.
patent: 4449692 (1984-05-01), Rhodes
patent: 4723567 (1988-02-01), Philpot et al.
patent: 4789000 (1988-12-01), Aslanian
Chambers A. Michael
K. B. Lighting Inc.
Striker Michael J.
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