Multi-turn stop mechanism

• US 3,293,925 A
• Filed: 01/29/1965
• Issued: 12/27/1966
• Est. Priority Date: 01/29/1965
• Status: Expired due to Term

• Current Assignee: Clarence R. Linsley
• Original Assignee: Clarence R. Linsley
• Inventors: Linsley, Clarence R.
• Application Number:
  US04/428,941
• Time in Patent Office: 697 Days
• US Class Current: 74/10.2
• CPC Class Codes: F16H 25/2015 Means specially adapted for stopping actuators in the end position; Position sensing means
• CPC Class Codes: G05G 5/04 Stops for limiting movement of members, e.g. adjustable stop G05G5/03, G05G5/05, G05G5/28 take precedence

Claims

1. IN A MULTI-TURN STOP MECHANISM HAVING AN INTERNALLY THREADED HOUSING, A CONTROL SHAFT ROTATABLY MOUNTED IN SAID HOUSING, A RUNNING NUT SLIDABLY MOUNTED ON SAID SHAFT AND HAVING EXTERNAL THREADS ENGAGING THE INTERNAL THREADS OF SAID HOUSING, AND KEYING MEANS FOR CAUSING SAID NUT TO ROTATE WITH SAID SHAFT AS SAID SHAFT IS TURNED IN SAID HOUSING, THE COMBINATION OF:

AT LEAST ONE STOP MEMBER MOUNTED ON SAID NUT AND PROTRUDING FROM ONE END THEREOF AND DISPLACED RADIALLY FROM THE AXIS OF ROTATION OF SAID SHAFT TO ROTATE ABOUT SAID AXIS WITH SAID NUT;

AND A COIL SPRING MEMBER MOUNTED IN SAID HOUSING IN COAXIAL RELATIONSHIP WITH THE AXIS OF ROTATION OF SAID SHAFT AND HAVING A PROTRUDING END PORTION DISPOSED IN THE PATH OF SAID STOP MEMBER TO BE CONTACTED THEREBY AT A LIMIT OF ROTATIONAL MOVEMENT OF SAID SHAFT.