Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Reexamination Certificate
2007-05-08
2007-05-08
Safavi, Michael (Department: 3673)
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
C405S111000, C405S114000
Reexamination Certificate
active
10198780
ABSTRACT:
The present invention is directed to the structure of a floatable caisson member and to a segmental floatable bulkhead assembly, formed by assembling a plurality of the floatable caisson members. The present invention also includes a method of fabrication of the floatable caisson member. A segmental floatable bulkhead assembly, formed by assembling a plurality of the floatable caisson members, is employed for dewatering a water passage of a dam.
REFERENCES:
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patent: 3534558 (1970-10-01), Le Bouteiller
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patent: 4259028 (1981-03-01), Cook
patent: 4729692 (1988-03-01), Tucker
patent: 5634742 (1997-06-01), Mills
patent: 6004067 (1999-12-01), Peppard
James Hitt, “Sticky Wickets—Bulkhead Built for Spill Gate Rehabilitation Project.”, Hydro Review, Jun. 1994, vol. XIII, No. 3, pp. 66 and 67.
William H. Riddle, “Spillway Dewatering for Replacement of Radial Crest Gates”, Proceedings: Waterpower '95, Jul. 1995, pp. 2694-2703, American Society of Civil Engineers (ASCE), San Francisco, California.
“Big bulkhead hauled ashore.”, Engineering News Record, May 17, 1993, p. 22.
Chandler K. Sehgal, Michael J. Morgan and Frank Reece, “Replacement of Draft Tube Floating Caisson and Handling system at the Wilson Hydroelectric Plant”, Proceedings: Waterpower '95, Jul. 1995, pp. 2608-2619, American Society of Civil Engineers (ASCE), San Francisco, California.
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Aswan High Dam, Draft Tube Bulkhead, May 7, 1991, Drawing Nos. OA-42-91 through OA-42-101, Sheets 1 through 11, U.S. Bureau of Reclamation.
Broken Bow Lake, Stop Log/Bulkhead System, Sep. 30, 1995, Sheet Nos. S-1, S-2 and S-13, U.S. Army Corps of Engineers, Tulsa District.
Michael Mills, “Corps Develops New Stoplog/Bulkhead System”, Hydro Review, Dec. 1997, vol. XVI, No. 7, pp. 74 and 75.
Karen Strotiak, “Sticky Wickets-Floating Bulkhead Proves Flexible, Reusable”, Hydro Review, Jun. 1987, vol. VI, No. 3, pp. 62 and 63.
Karen Strotiak, “Dam Renovation—Hinged Floating Bulkhead Proves Flexible, Reusable”, Trends, a Publication of Ayres Associates, Autumn 1987, pp. 2 and 3.
James R. Bakken and John S. Vonasek, Floating Bulkhead Installed for Hydro Intake Repair, Proceedings: Small Hydro '88, Jul. 1988, preprint version consisting of 13 pages of text and 5 pages of figures, Ministry of Energy, Toronto, Canada.
Frederick Lux III and Eric P. Regner, “Dewatering Using a Floating Bulkhead Proves Flexible, Reusable and Cost Effective”, Proceedings: Waterpower '91, Jul. 1991, pp. 1843-1852, American Society of Civil Engineers (ASCE), Denver, Colorado.
Martin Hendricks, “The Dam Door That Saved a Bundle”, Wisconsin Engineering Journal, 1992, pp. 18 and 19.
Frederick Lux III and Eric P. Regner, “Dewatering Using a Floating Bulkhead Proves Flexible, Reusable and Cost Effective”, USBR Water Operation and Maintenance, Bulletin No. 162, Dec. 1992, pp. 34-42.
Frederick Lux III and James R. Bakken, “An Innovative Concept for Dewatering Hydro Plants”, Hydro Review, Dec. 1992, vol. XI, No. 7, pp. 72-79, (Reprint).
Richard M. Rudolph and John R. Kries, “Considerations for Dewatering Hydro Units and Gates”, Proceedings: Waterpower '93, Aug. 1993, pp. 1812-1821, American Society of Civil Engineers (ASCE), Nashville, Tennessee (Preprint).
Frederick Lux III, Richard M. Rudolph and Richard K. Frithiof, “Closure Methods for Large Intakes”, Proceedings: Waterpower '95, Jul. 1995, pp. 2085-2094, San Francisco, California (Preprint).
Frederick Lux III, James R. Bakken and John A. Kolson, “Economical Dewatering Methods for Spillways and Intakes”, Proceedings, 1996 Annual Conference, Sep. 1996, pp. 137-146, Association of State Dam Safety Officials, Seattle, Washington.
Frederick Lux III, Richard M. Rudolph and Richard K. Frithiof, “Taking in the River”, Civil Engineering, Jul. 1997, pp. 51-54.
Richard M. Rudolph, Robert F. Martin, Frederick Lux III and Todd M. Rudolph, “A Dam Owner's Tool—The Hinged Floating Bulkhead”, Proceedings, 1998 Annual Conference, Oct. 1999, pp. 137-146, Association of State Dam Safety Officials, Las Vegas, Nevada.
Richard M. Rudolph, Robert F. Martin, Frederick Lux III and Todd Rudolph, “Dewatering intakes with a hinged floating bulkhead”, Hydropower & Dams, 1999, Issue 3, pp. 47-50.
Floating Bulkhead General Arrangement and others, Nickajack Project Jun. 12, 1974, Drawing Nos. 54W230 through 54W235, Tennessee Valley Authority.
Floating Bulkhead General Arrangement, Melton Hill Project, Nov. 15, 1976, Drawing No. 54E230, Tennessee Valley Authority.
Floating Bulkhead General Arrangement and others, Nickajack Project Jun. 12, 1974, Drawing Nos. 54W230 through 54W235, Tennessee Valley Authority, previously submitted.
Floating Bulkhead General Arrangement, Melton Hill Project, Nov. 15, 1976, Drawing No. 54E230, Tennessee Valley Authority, previously submitted.
Color photograph of Melton Hill Project in drawing No. 54E230, Nov. 15, 1976, Tennessee Valley Authority, (photo taken circa 2002, courtesy of Tennessee Valley Authority, previously submitted.
Color photograph of same Melton Hill project shown in drawing No. 54E230, Nov. 15, 1976, Tennessee Valley Authority, (photograph taken by TVA employee, Abby Bender, 2000), previously submitted.
Bourget Anthony J.
Safavi Michael
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