US PATENT SUBCLASS 74 / 589
.~.~ Counterbalanced

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

*  DD  ELEMENTS {10}
579 R  DF  .~ Pitmans and connecting rods {10}
589.~.~ Counterbalanced {2}
590  DF  .~.~.~> Weight type {1}
592  DF  .~.~.~> Spring

DEFINITION

Classification: 74/589

(under subclass 579) Devices comprising connecting rods having counterweights directly attached thereto for balancing the same about a bearing end.

SEE OR SEARCH THIS CLASS, SUBCLASS:

572+, for flywheels and rotors.

SEE OR SEARCH CLASS

267, Spring Devices,

113+, for hydropneumatic counter-balances, per se.