US PATENT SUBCLASS 92 / 68
.~ Interconnected with common rotatable shaft

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

61  DF  RELATIVELY MOVABLE WORKING MEMBERS {8}
68.~ Interconnected with common rotatable shaft {3}
69 R  DF  .~.~> Oppositely movable walls of common chamber (50) (75) {3}
71  DF  .~.~> Shaft axis parallel to axes of working members (70)
72  DF  .~.~> Shaft axis intersected by axes of working members {1}

DEFINITION

Classification: 92/68

(under subclass 61) Apparatus including a shaft mounted for rotation, and a means (e.g., linkage or gearing) interconnecting said shaft and the working members so that rotation of the shaft effects reciprocatory motion of the working members, or reciprocatory movement of the working members effects rotation of the shaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12.1+, for plural cylinders arranged in parallel, radial, or conical relationship with a rotary transmission axis with means to adjust the working chamber displacement thereof.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism, appropriate subclasses for mechanisms for converting one type of motion into another, and particularly

25+, for mechanisms for converting reciprocating movement to or from rotary, and subclasses 640+ for means for converting one type of motion to another involving gearing. Class 74 takes nominally recited pistons and cylinders combined with a mechanical motion converting linkage or gearing mechanism. For a further explanation of the line between Class 74 and Class 92, see References to Other Classes of the class definition.

91, Motors: Expansible Chamber Type, 472+, for an expansible chamber type motor having three or more cylinders arranged in parallel, radial, or conical relationship with a rotary transmission axis.

417, Pumps,

269+, for an expansible chamber type pump having three or more cylinders arranged in parallel, radial, or conical relationship with a rotary transmission axis.

475, Planetary Gear Transmission Systems or Components, for planetary gearing in a motion converting drive train.