US PATENT SUBCLASS 92 / 31
RECTILINEARLY MOVING WORKING MEMBER AND COAXIAL OR PARALLEL ELEMENT SLIDABLY INTERENGAGED FOR RELATIVE ROTARY MOVEMENT

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

31RECTILINEARLY MOVING WORKING MEMBER AND COAXIAL OR PARALLEL ELEMENT SLIDABLY INTERENGAGED FOR RELATIVE ROTARY MOVEMENT {2}
32  DF  .~> Working fluid-actuated interengaging means permits unidirectional rotation of element relative to fixed part
33  DF  .~> Element extends through working member portion

DEFINITION

Classification: 92/31

(under the class definition) Apparatus comprising an element positioned with the axis thereof coinciding with or parallel to the axis of the working member, said working member and element being slidably interengaged and including cooperating means therebetween such that (1) said element has rotary movement and the working member has rectilinear movement or (2) the element is fixed and the working member has both rotary and rectilinear movement.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

25+, for a mechanical movement for converting reciprocatory motion to or from rotary motion, and particularly subclasses 55+ for a cam and slide for converting reciprocatory motion to or from rotary motion. Class 74 takes such mechanical movements even though a piston and cylinder are nominally recited.

91, Motors: Expansible Chamber Type,

233, for a valveless expansible chamber type motor, in which the control of the motive fluid is effected by rotary motion of the working member responsive to the reciprocation thereof.

123, Internal-Combustion Engines, 45, for an internal combustion engine provided with a piston

which rotates responsive to the reciprocation thereof.

417, Pumps,

492, and 500, for a pump provided with a piston which simultaneously reciprocates and axially rotates.