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Electromagnetic vibrator

  • US 3,312,841 A
  • Filed: 10/22/1963
  • Issued: 04/04/1967
  • Est. Priority Date: 10/22/1963
  • Status: Expired due to Term
First Claim
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6. IN AN ELECTRICAL VIBRATOR:

  • A BASE;

    A FIRST CYLINDER EXTENDING SUBSTANTIALLY PERPENDICULARLY FROM SAID BASE;

    AN ELECTROMAGNET HAVING A CORE EXTENDING IN A DIRECTION SUBSTANTIALLY PARALLEL TO SAID FIRST CYLINDER;

    AND ARMATURE, SAID ARMATURE BEING SPACED FROM SAID ELECTROMAGNET CORE BY A PREDETERMINED DISTANCE;

    AND A HOLDING FRAME TO SUPPORT DAID ARMATURE AND INCLUDING A SECOND CYLINDER ARRANGED SUBSTANTIALLY PARALLEL TO SAID FIRST CYLINDER AND BEING OF A DIAMETER DIFFERENT FROM THAT OF THE FIRST CYLINDER, SAID CYLINDERS FITTING, WITH CLEARANCE, ONE WITHIN THE OTHER, AND A RING-SHAPED RESILIENT BODY LOCATED IN THE CLEARANCE BETWEEN SAID CYLINDERS AND BEING ADHESIVELY SECURED THERETO, SAID HOLDING FRAME BEING SUPPORTED IN A FREELY HANGING POSITION BY SAID RESILIENT BODY, WITH THE LATTER STRESSED EXCLUSIVELY BY THE WEIGHT OF SAID HOLDING FRAME AND SAID ARMATURE SUPPORTED THEREBY.

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