US PATENT SUBCLASS 137 / 382
.~.~ Valve guards


Current as of: June, 1999
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137 /   HD   FLUID HANDLING

343  DF  WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS {7}
377  DF  .~ Guards and shields {5}
382.~.~ Valve guards {1}
382.5  DF  .~.~.~> With means for accommodating a detachable actuator


DEFINITION

Classification: 137/382

(under subclass 377) Guards and shields in which the valve member of a fluent material device (1) is enclosed in a casing which is locked against unauthorized use of the valve; or (2) has an internal key which is fastened to another object to prevent movement of the valve to an unauthorized position; or (3) in which the valve is totally or partially enclosed in a casing or shield or has casings covering all or part of the operating handle or stem or a valve to protect the stem or operating handle against damage or unintentional

movement to or from a desired position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

312+, for valves combined with casings which act as drip catchers.

383+, for valves with locks but without casings totally or partially enclosing the valve.

586, for distribution systems in which there is an interlock between a valve actuator and a closure for an access opening.

613+, for closures used in series with a valve in distribution systems. SEE OR SEARCH CLASS

222, Dispensing,

173+, for dispenser guards in the nature of casings.

251, Valves and Valve Actuation,

89+, for valve actuator holding means and subclass 297 for detents which are not enclosing devices.