US PATENT SUBCLASS 24 / 539
.~.~.~.~.~ Element pivots or rotates in plane parallel to plane bisecting opposed engaging faces

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

455  DF  CLASP, CLIP, SUPPORT-CLAMP, OR REQUIRED COMPONENT THEREOF {17}
530  DF  .~ Having gripping member formed from, biased by, or mounted on, resilient member {8}
535  DF  .~.~ With operator for moving biased engaging face {1}
536  DF  .~.~.~ Camming or wedging element {2}
538  DF  .~.~.~.~ Pivoted or rotated element {2}
539.~.~.~.~.~ Element pivots or rotates in plane parallel to plane bisecting opposed engaging faces

DEFINITION

Classification: 24/539

Element pivots or rotates in plane parallel to plane bisecting opposed engaging faces:

(under subclass 538) Pivoted or rotated element which pivots or rotates through a plane substantially parallel and adjacent to a mathematical plane which (a) bisects the space between opposed, structure-to-be-secured* engaging surfaces, and (b) is radially perpendicular to the mathematical line about which the element swings.