US PATENT SUBCLASS 137 / 317
.~ Tapping a pipe, keg, or apertured tank under pressure

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

315  DF  WITH REPAIR, TAPPING OR ASSEMBLY MEANS {6}
317.~ Tapping a pipe, keg, or apertured tank under pressure {4}
318  DF  .~.~> With aperture forming means
319  DF  .~.~> Imperforate closure removing and holding tap
320  DF  .~.~> With valved closure or bung {3}
324  DF  .~.~> With core ejectors {1}

DEFINITION

Classification: 137/317

(under subclass 315) Devices in which access is gained to a closed container or system by means of a connectable device or tap which comprises a flow passage to receive material from the system and means to form an opening in or open a closed passage of the system, either by removing a plug or by opening a valve which has no other actuating means, the connection being made in a manner which prevents loss of material from the system and/or admission of extraneous matter to it.

(1) Note. The connectable flow passage forming element is usually a tap for a beer keg, but irrigation system couplings and other analogous devices are included, the source being a stationary type and the tap being portable or in the nature of an attachment.

(2) Note. Antisplash guards comprising baffles or packing means around the entering portion of the tap are included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

209+, for means for supplying gas to pressure systems containing gas and another fluid, especially subclass 212 for beer taps with gas pressure inlets.

453+, for barometric liquid level maintaining systems, especially subclass 454 for those having a removable font provided with a cut-off operable by engagement with the support-receiver, and see the search notes to subclass 454. 614.02+, and 614.05, for separable, valved, flow path sections, at least one of the valves being operated by the joining of the sections.

SEE OR SEARCH CLASS

29, Metal Working,

213.1+, for structure for assembling valve parts, including assembling by use of a pressurized container.

141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

329+, for puncturing type connecting means and, subclasses 346+ for filling devices for receivers having keyed or other special coupling means.

217, Wooden Receptacles,

98+, for barrel bungs, especially subclasses 99+ for valved bungs.

251, Valves and Valve Actuation,

89.5, and subclasses 149+ for a valved flow path section joined to another section, the act of joining causing the valve to open, subclass 89.5 also including features of the joint which may block or disable the valve actuator.