US PATENT SUBCLASS 248 / 405
.~.~.~.~ Screw and nut

Current as of: June, 1999
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248 /   HD   SUPPORTS

127  DF  STAND {14}
158  DF  .~ Standard type {4}
161  DF  .~.~ Adjustable vertically {6}
404  DF  .~.~.~ With force multiplying means {1}
405.~.~.~.~ Screw and nut {1}
406.1  DF  .~.~.~.~.~> With rotation prevention disabler {1}

DEFINITION

Classification: 248/405

(under subclass 404) Device wherein the force multiplying means includes an elongated threaded member and a shorter coaxial threaded member, the threads of the two members being meshed and the two members being relatively rotatable to axially move one with respect to the other.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

424.8, for screw and nut gearing, per se.