US PATENT SUBCLASS 49 / 240
.~.~ Shiftable pivot

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

208  DF  MOUNTED FOR MULTIDIRECTIONAL OR OBLIQUE MOVEMENT {7}
236  DF  .~ One direction imparts gravitational bias to swinging closure; e.g., rising hinge {2}
240.~.~ Shiftable pivot {3}
241  DF  .~.~.~> On crank arm
242  DF  .~.~.~> Mounted on eccentric or lever {2}
245  DF  .~.~.~> Pivot pin shifted in slot

DEFINITION

Classification: 49/240

(under subclass 236) Device provided with means to move or permit movement of one of the pivots of the closure relative to that of the axis of the other pivot to thereby change the direction of the turning axis of the closure, e.g., a closure is tipped about a corner while turning on an edge.