US PATENT SUBCLASS 285 / 3
FRANGIBLE ELEMENT

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

3FRANGIBLE ELEMENT {1}
4  DF  .~> Score line or groove

DEFINITION

Classification: 285/3

(under the class definition) Subject matter which includes a

frangible element that is cut or broken prior to assembly or disassembly of the joint.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2, for a coupling with a safety release including a frangible element.

SEE OR SEARCH CLASS

137, Fluid Handling,

67+, for flow control means responsive to frangible means, and subclass 797 for a frangible element in a flow control means. 220, Receptacles,

265, for a frangible closure in a metallic receptacle.

222, Dispensing,

541.1+, for dispensers with frangible outlet elements.