Telescoping screw sequencing device

• US 3,203,269 A
• Filed: 10/22/1962
• Issued: 08/31/1965
• Est. Priority Date: 10/22/1962
• Status: Expired due to Term

• Current Assignee: George C. Perrine
• Original Assignee: George C. Perrine
• Inventors: Perrine, George C.
• Application Number:
  US04/232,020
• Time in Patent Office: 1,044 Days
• US Class Current: 74/89.35
• CPC Class Codes: B64C 13/00 Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
• CPC Class Codes: F16H 25/205 comprising alternate power paths, e.g. for fail safe back-up
• CPC Class Codes: F16H 25/2056 Telescopic screws with at least three screw members in coaxial arrangement
• CPC Class Codes: Y10T 74/18672 Plural screws in series [e.g., telescoping, etc.]

Claims

1. A EXTENDABLE-RETRACTABLE ROTARY ACTUATING MECHANISM COMPRISING IN COMBINATIN;

A PAIR OF TELESCOPING DURING EXTENSION AND RETRACTION OF THE SCREW MEMBERS, A SCREW NUT CAPABLE OF LONGITUDINAL TRAVEL ALONG THE OUTER SCREW NUT CAPABLE OF LONGITUDINAL TRAVEL ALONT THE OUTER LOCK MEANS, SAID LOCK MEANS INTERCONNECTED WITH THE TELESCOPING SCREQ MEMBERS AND ADAPTED TO LOCK THE TELESCOPING SCREW MEMBERS AGAINST RELATIVE ROTATION DURING LONGITUDMAL TRAVEL OF THE SCREW NUT ALONT THE OUTER SCREW MEMBER AS WELL AS LOCK THE SCREW NUT AND OUTER SCREW MEMBER AGAINST RELATIVE ROTATION DURING EXTENSION AND RETRACTION OF THE TELESCOPING MEMBERS.