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

Railway wheels and rails damping structures

Patent 4355578 Issued on October 26, 1982. Estimated Expiration Date: Icon_subject October 26, 1999. 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

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Inventor

Application

No. 06/060181 filed on 07/24/1979

US Classes:

104/306, WITH RUNNING GEAR105/452, SOUND DEADENERS181/209, Relatively moving parts181/211, Combined238/382, DEADENING NOISE295/11, Tire cushions295/31.1, Wheel tread295/7, Sound deadeners301/6.91Having vibration damper or heat insulator

Examiners

Primary: Stoner, Bruce H. Jr.
Assistant: Beltran, Howard

Attorney, Agent or Firm

International Classes

B60B 17/00 (20060101)
F16F 7/10 (20060101)
F16F 15/12 (20060101)
F16F 7/108 (20060101)
G10K 11/00 (20060101)
G10K 11/172 (20060101)

Foreign Application Priority Data

1978-04-17 DE

Abstract

A system comprising a rail wheel and rail has the wheel and preferably also the rail provided with vibration dampers which absorb vibration having the frequency of the radial resonant vibration frequency of the wheel, for the purpose of preventing the formation of ripples in the rail head's surface on which the wheel runs.

Other References

  • Ein Beitragzum Problem Entstenhung der Schienenriffeln; Haass, Hans; Eisenbahningenieur 27, (1976) 5, pp. 200-207
  • Schienenriffeln als Resonanzeffekl bei Geschwindigkeitsabhangiger Frequenzaufspaltung von Radkr anz-Biegeeigenschwingungen und Michtlinearen Kontaktkraften zwischen Rad und Schiene; Werner, Karl; ETR (Eisenbahntechnische Rundschau); 25 Jun. 1976, pp. 381-391
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