US PATENT SUBCLASS 285 / 305
ESSENTIAL CATCH

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

305ESSENTIAL CATCH {7}
306  DF  .~> Line pressure-responsive
307  DF  .~> Operated by conduit motion
308  DF  .~> With manipulator {4}
318  DF  .~> Coil spring
319  DF  .~> Leaf spring
320  DF  .~> Pivoted
321  DF  .~> Resilient ring

DEFINITION

Classification: 285/305

(under the class definition) Subject matter comprising catch means essential to detachably holding the two members in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80, for a locked or sealed coupling.

81+, for auxiliary catches or latches which are not essential to the holding together of the two members, but serve to detain, block or disable the holding means.

276, for a swivel coupling with detent means.

340, for toggle ring-type wedge means in packed joints.

362, and 377, for manipulating rings for lugged pipes with rotary engagement. 403+, for socket type couplings having separable fasteners.

SEE OR SEARCH CLASS

24, Buckles, Buttons, Clasps, etc.,

123+, for a Chinese-finger- type clasp.

279, Chucks or Sockets, appropriate subclasses for detents in a tool or work holder.

292, Closure Fasteners, appropriate subclasses for catches in a closure fastener combination.

403, Joints and Connections,

326+, for joints in general comprising a biased catch or latch.