US PATENT SUBCLASS 172 / 749
.~ Having separable parts interconnected without detachable fastening means

Current as of: June, 1999
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172 /   HD   EARTH WORKING

681  DF  TOOL, STANDARD OR CONNECTION {32}
749.~ Having separable parts interconnected without detachable fastening means {2}
750  DF  .~.~> Self-engaging snap fastener
751  DF  .~.~> Captive fastener or wedge tightened or engaged after assembly

DEFINITION

Classification: 172/749

(under subclass 681) Apparatus in which separable parts of the apparatus are so interfitted or related as to remain in operative relation to one another without the addition of a connecting or fastening member which is intended to be entirely detached from the parts when the parts are disconnected.

(1) Note. The disclosure of a separate fastening member related to the joint being claimed is sufficient to exclude a patent from this definition even though it is not claimed.

(2) Note. The "parts" of definition must be principal portions of the apparatus such as, standard, moldboard, or share. A mere portion of the connecting means such as a bracket between two parts is not included.

SEE OR SEARCH THIS CLASS, SUBCLASS:

753, for implement parts which are interfitted or interlocked and also provided with a separate fastening member.