Vibration damping device

• US 3,207,009 A
• Filed: 04/08/1964
• Issued: 09/21/1965
• Est. Priority Date: 04/08/1964
• Status: Expired due to Term

• Current Assignee: Ragnar L. Carlstedt
• Original Assignee: Ragnar L. Carlstedt
• Inventors: Carlstedt, Ragnar L.
• Application Number:
  US04/358,341
• Time in Patent Office: 531 Days
• US Class Current: 408/143
• CPC Class Codes: B23B 29/022 with vibration reducing means
• CPC Class Codes: B23Q 17/0976 Detection or control of chatter B23Q15/12 takes precedence
• CPC Class Codes: Y10S 408/713 Tool having detachable cutting edge
• CPC Class Codes: Y10S 82/904 Vibrating method or tool
• CPC Class Codes: Y10T 408/76 Tool-carrier with vibration-damping means
• CPC Class Codes: Y10T 82/2572 Attachment

Claims

1. APPARATUS FOR DAMPING VIBRATIONS IN A MEMBER HAVING A LONGITUDINAL BORE THEREIN COMPRISING;

A PLURALITY OF RIGID IMPACT ELEMENTS CARRIED WITHIN SAID BORE AND HAVING SMOOTH PARALLEL AREAS IN FACE TO FACE ENGAGEMENT, EACH SAID ELEMENT HAVING A DIMENSION IN THE DIRECTION OF VIBRATION WHICH IS LESS THAN THE DIAMETER OF SAID BORE, AND WHICH SAID DIMENSIONS OF SAID IMPACT ELEMENTS ARE ALSO RANDOMLY VARIED, THE CLEARANCE BETWEEN SAID PLURALITY OF IMPACT ELEMENTS AND SAID BORE BEING SUCH THAT THE VIBRATIONS OF SAID MEMBER WILL BE OPPOSED BY THE RANDOM IMPACTS OF SAID IMPACT ELEMENTS AGAINST THE WALL OF SAID BORE, AND MEANS TO URGE SAID PARALLEL AREAS ON ADJACENT IMPACT ELEMENTS IN FACE TO FACE ENGAGEMENT.