U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Damping device for rotating members

Patent 5528348 Issued on June 18, 1996. Estimated Expiration Date: Icon_subject July 29, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Electrophotographic image forming apparatus with fly wheel Patent #: 4935778
Issued on: 06/19/1990
Inventor: Mochida

Inventors

Assignee

Application

No. 283041 filed on 07/29/1994

US Classes:

399/167, Drive apparatus464/180Particular vibration dampening or balancing structure

Examiners

Primary: Moses, R. L.

Attorney, Agent or Firm

Foreign Patent References

  • 57-151955 JP 09/23/1982
  • 58-120265 JP 07/23/1983
  • 61-130967 JP 06/23/1986
  • 63-155169 JP 06/23/1988
  • 1-231065 JP 09/23/1989
  • 1-282567 JP 11/23/1989
  • 2-115861 JP 04/23/1990
  • 2-184868 JP 07/23/1990
  • 2-282271 JP 11/23/1990
  • 3-84564 JP 04/23/1991
  • 4-75065 JP 03/23/1992

International Class

G03G 015/00

Foreign Application Priority Data

1992-09-11 JP

Abstract

A proper frequency of a driving system is shifted to a high frequency side by increasing the rigidity of a photoreceptor drum or the proper frequency of the driving system is shifted to a low frequency side by reducing the rigidity of the photoreceptor drum so that the proper frequency of the driving system is made so as not to conform with a frequency of a speed fluctuation component transmitted to the driving system. With this construction, the photoreceptor drum is prevented from causing the resonance and the speed fluctuation is reduced so that an image quality can be improved.

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