Load responsive control for power systems

• US 3,093,946 A
• Filed: 10/08/1959
• Issued: 06/18/1963
• Est. Priority Date: 10/08/1959
• Status: Expired due to Term

• Current Assignee: Arnold Pitt, Tadeusz Budzich
• Original Assignee: Arnold Pitt, Tadeusz Budzich
• Inventors: Pitt, Arnold, TADEUSZ BUDZICH
• Application Number:
  US03/845,234
• Time in Patent Office: 1,349 Days
• US Class Current: 460/6
• CPC Class Codes: A01D 41/1274 for drives
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: F16H 2059/6861 the pressures, e.g. high, low or differential pressures
• CPC Class Codes: F16H 61/46 Automatic regulation in accordance with output requirements
• CPC Class Codes: F16H 61/472 for achieving a target output torque
• CPC Class Codes: F16H 61/664 Friction gearings
• CPC Class Codes: Y10S 56/15 Condition responsive
• CPC Class Codes: Y10T 74/19019 Plural power paths from prime mover

Claims

1. IN A MACHINE HAVING A DRIVEN TOOL WHICH PERFORMS WORK ON MATERIAL FED TO IT, A FEED MECHANISM FOR ADVANCING THE MATERIAL AND THE TOOL RELATIVE TO EACH OTHER AND THUS FEEDING MATERIAL TO THE TOOL, AND A PRIME MOVER FOR THE TOOL AND FOR THE DRIVEN FEED MECHANISM;

A FIRST POWER TRANSMISSION AND CONTROL SYSTEM COMPRISING A TRANSMISSION HAVING A CONSTANT SPEED OUTPUT AND INTERPOSED IN A DRIVE TO THE TOOL TO DRIVE THE TOOL AT A CONSTANT SPEED IRRESPECTIVE OF THE SPEED OF OPERATION OF THE ASSOCIATED PRIME MOVER A SECOND POWER TRANSMISSION SYSTEM INTERPOSED BETWEEN THE PRIME MOVER AND THE FEED MECHANISM TO DRIVE THE FEED MECHANISM, A LOAD-SENSING DEVICE TO MEASURE SOLELY THE LOAD ON THE TOOL AND PRODUCE A CONTROL SIGNAL, SAID CONTROL SIGNAL BEING OPERATIVE UPON A DEVICE TO CONTROL THE RATE AT WHICH THE DRIVEN FEED MECHANISM FEEDS MATERIAL TO THE TOOL TO MAINTAIN A SUBSTANTIALLY CONSTANT LOAD ON THE TOOL.