US PATENT SUBCLASS 346 / 31
FOLLOW-UP


Current as of: June, 1999
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346 /   HD   RECORDERS

31FOLLOW-UP


DEFINITION

Classification: 346/31

Recorder mechanisms in which there is a function responsive element, a recorder controlling element, and a recorder element controlled thereby, said controlling element being movable by means independent of the means employed for controlling the function responsive element, and in which the controlling element assumes a position determined by the condition of the function responsive element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11, for weight responsive members with mechanism to control a movable recorder element to cause proportional motion.

32, for rebalancing systems.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

388, for follow-up gearing.

91, Motors: Expansible Chamber Type,

358+, for expansible chamber motors having working member position feedback control. 114, Ships,

144, for follow-up ship steering.

236, Automatic Temperature and Humidity Regulation,

74+, for regulating systems having electrical follow-ups.

244, Aeronautics,

76+, for follow-up aircraft steering.

303, Fluid-Pressure and Analogous Brake System,

54, for follow-up fluid pressure brake valves.

318, Electricity: Motive Power Systems,

560+, for electric motor servomechanisms.

340, Communications: Electrical, 870.43, for telemetric systems having follow up.