Unidirectional drive for small synchronous motors

• US 3,308,315 A
• Filed: 02/10/1964
• Issued: 03/07/1967
• Est. Priority Date: 02/10/1964
• Status: Expired due to Term

• Current Assignee: General Time Controls, Inc.
• Original Assignee: Joseph J. Mahon, Ralph N. Roberge
• Inventors: Mahon, Joseph J., Roberge, Ralph N.
• Application Number:
  US04/343,669
• Time in Patent Office: 1,121 Days
• US Class Current: 310/41
• CPC Class Codes: H02K 7/1185 with a mechanical one-way direction control, i.e. with means for reversing the direction of rotation of the rotor

Claims

1. IN A SYNCHRONOUS MOTOR THE COMBINATION OF:

ALTERNATE FIELD POLES, A ROTOR CAPABLE OF STARTING AND RUNNING IN A FIRST OR A SECOND ROTARY DIRECTION WHEN AFFECTED BY ALTERNATING OPPOSITE POLARITIES IN SAID ALTERNATE FIELD POLES, A DRIVEN MEMBER CAPABLE OF ROTATION IN A FIRST AND IN A SECOND DIRECTION, LOST-MOTION COUPLING MEANS BETWEEN SAID ROTOR AND DRIVEN MEMBER, SAID ROTOR CAPABLE OF ESTABLISHING A DIRECT DRIVING ENGAGEMENT WITH SAID DRIVEN MEMBER IN EITHER OF SAID ROTARY DIRECTIONS THROUGH SAID LOST-MOTION COUPLING MEANS, AND MEANS FOR ARRESTING SAID DRIVEN MEMBER WHEN ROTATED BY SAID ROTOR IN SAID FIRST DIRECTION WHEREBY SAID ROTOR THEN RUNS IN SAID SECOND DIRECTION AND SAID DRIVEN MEMBER IS DELAYEDLY BUT UNIMPEDEDLY ROTATED BY SAID ROTOR IN SAID SECOND DIRECTION THROUGH SAID LOSTMOTION COUPLING MEANS.