Electrical primary flight control system utilizing redundant channels

• US 3,198,082 A
• Filed: 11/09/1962
• Issued: 08/03/1965
• Est. Priority Date: 11/09/1962
• Status: Expired due to Term

• Current Assignee: Kerris Wolfram Eduard K
• Original Assignee: Kerris Wolfram Eduard K
• Inventors: KERRIS WOLFRAM EDUARD K
• Application Number:
  US04/236,514
• Time in Patent Office: 998 Days
• US Class Current: 91/1
• CPC Class Codes: B64C 13/504 using electro-hydrostatic actuators [EHA's]
• CPC Class Codes: B64C 13/505 having duplication or stand-by provisions
• CPC Class Codes: Y10T 74/20006 Resilient connections
• CPC Class Codes: Y10T 74/20636 Detents

Claims

1. AN ELECTRICAL PRIMARY FLIGHT CONTROL SYSTEM COMPRISING:

AT LEAST THREE PARALLEL POWER TRANSMITTING CHANNELS;

AN ACTUATOR IN EACH OF SAID CHANNELS;

A DEVICE FOR SUMMING THE ACTUATOR OUTPUTS OF SAID CHANNELS;

AND A DISCONNECE MECHANISM FOR DISCONNECTING A MANFUNCTIONING CHANNEL FROM SAID SUMMING DEVICE, SAID DISCONNECT MECHANISM INCLUDING;

A SPINDLE CONNECTED TO THE ACTUATOR OUTPUT ROD AND HAVING AN ANNULAR GROOVE WITH BEVELED SIDES;

A SHANK ATTACHED TO THE SUMMING DEVICE AND ADAPTED TO RECEIVE THE SPINDLE;

OPPOSING ROLLER MEANS CARRIED BY SAID SHANK AND BEING ADAPTED TO ENGAGE SAID GROOVE DURING NORMAL OPERATION OF THE CHANNEL AND TO BE DISENGAGED FROM SAID GROOVE IN THE EVENT OF A CHANNEL MALFUNCTION;

AND A SPRING BIASED KNEE JOINT CONNECTING SAID ROLLER MEANS FOR KEEPING THE ROLLER MEANS DISENGAGED AFTER A MALFUNCTION OF THE CHANNEL HAS OCCURRED.