Valves and valve actuation – With means for blocking or disabling actuator – Attachments
Patent
1989-09-06
1991-08-20
Rivell, John
Valves and valve actuation
With means for blocking or disabling actuator
Attachments
251232, 251234, 251293, 141392, F16K 3510, G05G 506
Patent
active
050407694
ABSTRACT:
A linkage attachment device is used in cold weather in combination with f and water dispensing nozzles having triggers for opening and closing valves for dispensing liquids and for stopping the flow of liquid, without manual contact by the user with such nozzles. Means are provided for preventing the unintended opening of the valves and for limiting the degree to which the valves can be opened by actuating the linkage attachment device.
REFERENCES:
patent: 4337917 (1982-07-01), Tesack et al.
patent: 4683923 (1987-08-01), Harris
patent: 4846447 (1989-07-01), Hanna
Christians John A.
Lundin James D.
Wilber Gerald F.
Bellamy Werten F. W.
Miller Charles
Randolph William
Rivell John
The United States of America as represented by the Secretary of
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