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

Movable dam

Patent 5725326 Issued on March 10, 1998. Estimated Expiration Date: Icon_subject February 9, 2016. 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

1750901

2991625

3336757

Energy-efficient automatic sluice gate for sustaining a fluid level Patent #: 4449851
Issued on: 05/22/1984
Inventor: Combes ,   et al.

Inventor

Application

No. 599601 filed on 02/09/1996

US Classes:

405/104, Vertical405/96, Float405/103Sliding

Examiners

Primary: Taylor, Dennis L.

Attorney, Agent or Firm

Foreign Patent References

  • A 61-49013 JP. 03/12/1986
  • 9201601 NL. 04/12/1994

International Class

E02B 007/26

Foreign Application Priority Data

1995-02-09 NL

Abstract

The invention relates to a movable dam for a water-course. This dam comprises a chamber which, for example, is formed in a dike or alike and wherein a buoyant body is housed supporting a vertical retaining wall. At its top the chamber communicates with the surroundings through a slot receiving the vertical retaining wall, whereas further a filling channel connects to said chamber and extends towards the watercourse. It is possible that a discharge channel is connected to the lower part of the chamber. Further sealing means may be provided.

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