Title of Invention

METHOD RELATED TO THE HYDRAULIC DREDGING OF SEDIMENT FROM THE SEA BOTTOM OR THE BOTTOM OF WATER DAMS.

Abstract THE INVENTION RELATES TO Method related to the hydraulic dredging of sediment from the sea bottom, the bottom of water dams or the like, including a first operational step where sediment is sucked or pumped through a hose or pipe (2) to a second level located below the natural water surface utilizing the difference in water pressure between the natural water surface and said second level to provide or enhance the required suction or pump capacity. At said second level sediment is received in a container (3) accessible by mechanical equipment located at or over the natural water surface, from which container at least part of the sediment is removable by per se conventional pumps or conventional lifting methods or by releasing sediment to a lower level. At the lower end of said hose or pipe (2) a suction manifold (15) with two inlets or two sets of inlets (16, 17) is arranged, one inlet or set of inlets (16) being arranged at or close to the lower end of the suction manifold and being adapted to suck in sediment from the bottom together with some water, the other inlet or set of inlets (17) being arranged at a vertical distance from said first inlet or set of inlets (16) and being adapted to suck in water only.
Full Text

Documents:

825-kolnp-2003-granted-abstract.pdf

825-kolnp-2003-granted-claims.pdf

825-kolnp-2003-granted-correspondence.pdf

825-kolnp-2003-granted-description (complete).pdf

825-kolnp-2003-granted-drawings.pdf

825-kolnp-2003-granted-examination report.pdf

825-kolnp-2003-granted-form 1.pdf

825-kolnp-2003-granted-form 13.pdf

825-kolnp-2003-granted-form 18.pdf

825-kolnp-2003-granted-form 2.pdf

825-kolnp-2003-granted-form 3.pdf

825-kolnp-2003-granted-form 5.pdf

825-kolnp-2003-granted-gpa.pdf

825-kolnp-2003-granted-letter patent.pdf

825-kolnp-2003-granted-pa.pdf

825-kolnp-2003-granted-priority document.pdf

825-kolnp-2003-granted-reply to examination report.pdf

825-kolnp-2003-granted-specification.pdf

825-kolnp-2003-granted-translated copy of priority document.pdf


Patent Number 219942
Indian Patent Application Number 825/KOLNP/2003
PG Journal Number 20/2008
Publication Date 16-May-2008
Grant Date 14-May-2008
Date of Filing 24-Jun-2003
Name of Patentee FOSSURA AS
Applicant Address LEIRA 6590 TUSTNA, 1572 TUSTNA,
Inventors:
# Inventor's Name Inventor's Address
1 FAGERVOLD GUNNAR, ROELBAKKEM 5, N-7168, LYSOYSUNDET,
2 JACOBSEN TOM OSCAR WISTINGS VEI 54 N-7020 TRONDHEIM,
3 KVALVAAG OLAV, KVITNESET, N-6523 FREI
4 FAGERVOLD TERJE LEIRA, N-6590 TUSTNA,
PCT International Classification Number E02F 3/88
PCT International Application Number PCT/NOO1/00509
PCT International Filing date 2001-12-21
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 20006659 2000-12-27 Norway