US PATENT SUBCLASS 477 / 193
.~.~.~ Device or means including a threaded shaft, rack or ratchet

Current as of: June, 1999
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477 /   HD   INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL

182  DF  BRAKE CONTROL {8}
189  DF  .~ Engine energy control having adjusting and holding device, with means on brake control to override holding device {2}
192  DF  .~.~ Mechanical holding device engaged by mechanical means {1}
193.~.~.~ Device or means including a threaded shaft, rack or ratchet

DEFINITION

Classification: 477/193

Device or means including a threaded shaft, rack, or ratchet:

(under subclass 192) Subject matter wherein said structure or device comprises (a) a cylindrical bar with a continuous helical rib projecting from the external surface which is engaged by interfitting projections on a member for transferring force, (b) a bar with notch or teeth projecting transversely from a longitudinal surface which is engaged by interfitting projections on a member for transferring force, or (c) a unidirectionally rotatable force transmitting member.