US PATENT SUBCLASS 24 / 681
.~.~.~.~ Having axially extending expansion slit along side of cavity

Current as of: June, 1999
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24 /   HD   BUCKLES, BUTTONS, CLASPS, ETC.

572  DF  SEPARABLE-FASTENER OR REQUIRED COMPONENT THEREOF {5}
588  DF  .~ Including receiving member having cavity and mating member having insertable projection guided to interlock thereby {12}
629  DF  .~.~ Receiving member includes either movable connection between interlocking components or variable configuration cavity {7}
662  DF  .~.~.~ Having resiliently biased interlocking component or segment {9}
681.~.~.~.~ Having axially extending expansion slit along side of cavity

DEFINITION

Classification: 24/681

Having axially extending expansion slit along side of cavity:

(under subclass 662) Receiving member wherein the component or segment forming the projection receiving cavity has a gap or slit located in one of its walls extending in the same direction as the central axis of the access opening to allow the cavity to either resiliently expand or contract during the interlocking operation.

(1) Note. To be proper for this subclass the length of the gap or slit in the direction of the central axis must be of a greater magnitude than the thickness of the material from which the cavity is constructed.