Patents Assigned to Roush Anatrol, Inc.
  • Multi-mode vibration absorbing device for implements
    Patent number: 6203454
    Abstract: A multi-mode vibration absorbing device for implements includes a base member and a mass mounted to the base member and cantilevered relative thereto. The multi-mode vibration absorbing device is tuned such that it vibrates at the same frequency as the implement but out of phase therewith.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: March 20, 2001
    Assignee: Roush Anatrol, Inc.
    Inventors: Ahid D. Nashif, Gopichand Koganti
  • Vibration damping device for stringed racquets
    Patent number: 6033324
    Abstract: A vibration damping device for stringed racquets includes a viscoelastic member adapted to be wrapped around at least a pair of strings of the racquet and a moveable member extending through the viscoelastic member moveable relative to the viscoelastic member in response to vibrations induced by an impact on the strings of the racquet such that the vibration damping device vibrates over the same frequency range but out of phase with the racquet to damp vibrations in the racquet.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: March 7, 2000
    Assignee: Roush Anatrol, Inc.
    Inventors: Ahid D. Nashif, Gopichand Koganti
  • Multi-mode vibration absorbing device for implements
    Patent number: 5935027
    Abstract: A multi-mode vibration absorbing device for implements includes a base member and a mass mounted to the base member and cantilevered relative thereto. The multi-mode vibration absorbing device is tuned such that it vibrates at the same frequency as the implement but out of phase therewith.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: August 10, 1999
    Assignee: Roush Anatrol, Inc.
    Inventors: Ahid D. Nashif, Gopichand Koganti
  • Golf club having vibration damping device and method for making same
    Patent number: 5788586
    Abstract: A golf club having a vibration damping device including a club head, a shaft connected to the club head having resonant frequencies over a predetermined range and a rod disposed within the shaft with a viscoelastic material interposed between the shaft and the rod. The rod is flexible and has resonant frequencies over the same frequency range as the shaft such that the shaft and rod vibrate out of phase with respect to each other and thereby deform the viscoelastic material to damp vibrations in the shaft.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: August 4, 1998
    Assignee: Roush Anatrol, Inc.
    Inventor: Paul J. Macioce
  • Hand operated impact implement having tuned vibration absorber
    Patent number: 5704259
    Abstract: A hand operated impact implement having a tuned vibration absorber includes a head for impacting an object, a handle connected to the head, and a tuned vibration damper attached to the handle and/or head to damp overall handle/head vibration of the impact implement after impacting an object.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: January 6, 1998
    Assignee: Roush Anatrol, Inc.
    Inventor: Paul J. Riehle
  • Golf club having vibration damping device and method for making same
    Patent number: 5655975
    Abstract: A golf club having a vibration damping device including a club head, a shaft connected to the club head having resonant frequencies over a predetermined range and a rod disposed within the shaft with a viscoelastic material interposed between the shaft and the rod. The rod is flexible and has resonant frequencies over the same frequency range as the shaft such that the shaft and rod vibrate out of phase with respect to each other and thereby deform the viscoelastic material to damp vibrations in the shaft.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: August 12, 1997
    Assignee: Roush Anatrol, Inc.
    Inventor: Ahid D. Nashif
  • Vibration damping device for sporting implements
    Patent number: 5655980
    Abstract: A vibration damping device for sporting implements includes a base member and a mass mounted to the base member and cantilevered relative thereto, the device is tuned such that it vibrates at the same frequency as the sporting implement but out of phase therewith.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: August 12, 1997
    Assignee: Roush Anatrol, Inc.
    Inventors: Ahid D. Nashif, Gopichand Koganti
  • Vibration damping device for stringed racquets
    Patent number: 5651545
    Abstract: A vibration damping device for stringed racquets including a viscoelastic member adapted to be mounted between strings of the racquet and at least one movable member carried on the viscoelastic member. The movable member is movable relative to the viscoelastic member in response to vibrations induced by an impact on the strings of the racquet such that the vibration damping device vibrates over the same frequency range but out of phase with the racquet to dampen vibrations in the racquet.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 29, 1997
    Assignee: Roush Anatrol, Inc.
    Inventors: Ahid D. Nashif, Gopichand Koganti