US PATENT SUBCLASS 254 / 100
.~ Special engaging feature

Current as of: June, 1999
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254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

98  DF  SCREW {4}
100.~ Special engaging feature {1}
101  DF  .~.~> Rocking head or base

DEFINITION

Classification: 254/100

Special engaging feature:

(under subclass 98) Screw pushing and pulling implement including some special structure in the means for engaging the load or the support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7, 13, 20, 30, 41, 54, and 67, for screw-type implements of special utility.

SEE OR SEARCH CLASS

29, Metal Working,

258+, for screw-type assembly or disassembly means.

72, Metal Deforming,

390, for screw-actuated tool having relatively movable offset tool faces. 81, Tools,

3.33, 3.37, and 3.45 for closure removers for receptacles employing screw-actuated devices.

157, Wheelwright Machines,

8+, and 12 for tire tighteners and spoke extractors respectively employing screw-actuated devices.

248, Supports,

188.2+, for a leveling device combined with or requiring modification of a table leg or the like.

269, Work Holders,

240+, for patents to a device with relatively movable jaws actuated by screw nut means.