US PATENT SUBCLASS 92 / 207
.~.~ Adjustment effected by wedge member movable relative to side wall portion (203)


Current as of: June, 1999
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92 /   HD   EXPANSIBLE CHAMBER DEVICES

172  DF  PISTON {19}
201  DF  .~ Radially adjustable side wall portion {4}
207.~.~ Adjustment effected by wedge member movable relative to side wall portion (203)


DEFINITION

Classification: 92/207

(under subclass 201) Apparatus in which the means for effecting lateral movement of the side wall portion comprises an element having a beveled surface and being movable relative to said side wall portion, so that movement of said element relative to the side wall portion effects lateral movement of said portion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

203, for an open ended skirt-type piston in which the skirt is radially adjustable and in which the adjustment is effected by a wedge member movable relative to the skirt. Note "Statement Relating To Placement Of Patents Involving Combination And Subcombination Subclasses" of the Class Definition and the paragraph following the title in the schedule of this class.

206, for a radially expansible side wall portion positioned between axially spaced relatively movable end members, and in which the abutting surfaces between an end member and the side wall portion are beveled to provide a wedging action.