US PATENT SUBCLASS 187 / 376
.~.~.~ Slidable contact component having wedge shape or sliding along incline

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


187 /   HD   ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

351  DF  HAVING SPECIFIC MEANS CONTACTING OR ON LOAD SUPPORT FOR STOPPING OR SLOWING THEREOF {4}
359  DF  .~ Includes movable contact component on support for engaging shaft structure {4}
373  DF  .~.~ Actuated by load support speed governor or sensor {2}
376.~.~.~ Slidable contact component having wedge shape or sliding along incline

DEFINITION

Classification: 187/376

Slidable contact component having wedge shape or sliding along incline:

(under subclass 373) Retaining, halting, or retarding means having its relatively moving engaging part connected to another part of the means, or to the structure attaching it to the load-underlying support surface, by two distinct rigid or semirigid formations which (1) are each integral with or attached to a different one of the parts or part and attaching structure and (2) have mutually cooperating surfaces both (a) in gliding contact with each other and (b) restricting the relative movement of the engaging part to substantially a single primary direction, and further wherein either (i) the engaging part has a tapered contour or (ii) the cooperating formations restricting its movement to a

primary direction are at an acute or an obtuse angle to the fixed structure located along the shaft*, and the engaging part and cooperating formation are positioned relative to each other in such a manner that the part will increase the engaging force applied against the fixed structure when moved along the formation in one direction.