Closure operator for valves

• US 3,254,660 A
• Filed: 12/19/1963
• Issued: 06/07/1966
• Est. Priority Date: 12/19/1963
• Status: Expired due to Term

• Current Assignee: William A. Ray
• Original Assignee: William A. Ray
• Inventors: Ray, William A.
• Application Number:
  US04/333,262
• Time in Patent Office: 901 Days
• US Class Current: 137/66
• CPC Class Codes: F16K 31/105 for rotating valves
• CPC Class Codes: Y10T 137/1516 Thermo-electric
• CPC Class Codes: Y10T 137/8225 Position or extent of motion indicator
• CPC Class Codes: Y10T 74/18944 Link connections

Claims

3. IN AN ELECTROMAGNETIC OPERATOR:

AN ELECTROMAGNETIC MEMBER;

AN ARMATURE MEMBER ADAPTED TO BE ATTACHED TO THE ELECTROMAGNETIC MEMBER SO AS TO BE MOVED IN UNISON UPON MOVEMENT OF EITHER OF THE MEMBERS;

MEANS DEFINING A PATH OF MOVEMENT FOR SAID MEMBERS;

AN OPERATING LEVER HAVING AN AXIS;

SAID LEVER SERVING AS A HANDLE FOR MANUAL OPERATION;

A LINK DIRECTLY AND PIVOTALLY CONNECTED AT ITS END RESPECTIVELY TO THE LEVER AND TO ONE OF THE MEMBERS;

A LINE JOINING THE LINK PIVOTS PASSING FROM ONE SIDE OF THE LEVER AXIS THROUGH A NEUTRAL CENTRAL POSITION TO THE OTHER SIDE OF SAID LEVER AXIS AS THE LEVER IS MOVED IN ONE ANGULAR DIRECTION;

AND STOP MEANS LIMITING MOVEMENT OF THE LEVER IN ONE ANGULAR DIRECTION TO DETERMINE A LIMITED POSITION IN WHICH SAID LINE IS JUST BEYOND SAID CENTRAL POSITION;

SAID ONE MEMBER BEING ADVANCED BY MOVEMENT OF THE LEVER IN THE OTHER ANGULAR DIRECTION AWAY FROM SAID STOP MEANS AND BEING RETRACTED BY MOVEMENT OF THE LEVER IN SAID ONE ANGULAR DIRECTION TOWARD SAID STOP MEANS;

A FORCE ACTING UPON SAID ONE OF SAID MEMBERS IN A DIRECTION TO ADVANCE THE SAID ONE MEMBER BEING OPPOSED BY SAID STOP MEANS WHEN SAID LEVER IS ADJACENT ITS SAID LIMITED POSITION.