Ballast Nedam Groep N.V.

Organization

Amstelveen, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for compacting soil
- Patent number 4,722,635
- Issue date Feb 2, 1988
- Ballast-Nedam Groep N.V.
- Hans G. Schnell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Dredged soil conveying vessel
- Patent number 4,505,214
- Issue date Mar 19, 1985
- Ballast-Nedam Groep N.V.
- Johannes C. Tjebbes
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Watertight seal between two concrete elements
- Patent number 4,449,720
- Issue date May 22, 1984
- Ballast-Nedam Groep N.V.
- Tjako A. Wolters
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of dredging and dredging implement
- Patent number 4,418,484
- Issue date Dec 6, 1983
- Ballast-Nedam Groep N.V.
- Tjako A. Wolters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Balanced supplemental water bleed for suction dredgers
- Patent number 4,412,790
- Issue date Nov 1, 1983
- Ballast-Nedam Groep N.V.
- Thomas J. Ruyter
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method of constructing an artificial island and island constructed...
- Patent number 4,397,587
- Issue date Aug 9, 1983
- Ballast-Nedam Groep N.V.
- Jan Op den Velde
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method of accurately dredging a desired profile contour
- Patent number 4,374,420
- Issue date Feb 15, 1983
- Ballast-Nedam Groep N.V.
- Tjako A. Wolters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Device for separating a mixture
- Patent number 4,265,759
- Issue date May 5, 1981
- Ballast-Nedam Groep N.V.
- Willem A. Verpalen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Transport conduit
- Patent number 4,250,034
- Issue date Feb 10, 1981
- Ballast-Nedam Groep N.V.
- Tjako A. Wolters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Suction dredger and method of loading the same
- Patent number 4,245,932
- Issue date Jan 20, 1981
- Ingenieursbureau voor Systemen en Octrooien "Spanstaal" B. V.
- Gerrit H. van Zeggelaar
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Dredging vessel
- Patent number 4,206,057
- Issue date Jun 3, 1980
- Ballast-Nedam Groep N.V.
- Petrus J. H. Nieuwendijk
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Device for cutting loose hard ground material
- Patent number 4,204,347
- Issue date May 27, 1980
- Ballast-Nedam Groep N.V.
- Tjako A. Wolters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Separating device
- Patent number 4,202,778
- Issue date May 13, 1980
- Ballast-Nedam Groep N.V.
- Cornelis G. Middelbeek
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Suction dredger vessel and method of loading the hold of the same
- Patent number 4,172,617
- Issue date Oct 30, 1979
- Ingenieursbureau voor Systemem en Octrooien "Spanstaal" B.V.
- Jan de Koning
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and device for loosening stony soil
- Patent number 4,162,102
- Issue date Jul 24, 1979
- Ballast-Nedam Groep N.V.
- Joannes A. Rooymans
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and apparatus for breaking up lumps of stone from a subaqueo...
- Patent number 4,150,502
- Issue date Apr 24, 1979
- Ballast-Nedam Groep N.V.
- Jan Piet t. Sijthoff
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and device for separating a mixture
- Patent number 4,145,280
- Issue date Mar 20, 1979
- Ballast-Nedam Groep N.V.
- Cornelis G. Middelbeek
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Device for separating water from substances contained therein
- Patent number 4,138,342
- Issue date Feb 6, 1979
- Ballast-Nedam Groep N.V.
- Cornelis G. Middelbeek
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for collecting light-weight substances floating on a liquid...
- Patent number 4,126,552
- Issue date Nov 21, 1978
- Ballast-Nedam Groep N.V.
- Cornelis Gerardus Middelbeek
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Flexible connections for suction dredger pipes
- Patent number 4,123,860
- Issue date Nov 7, 1978
- Ballast-Nedam Groep N.V.
- Jan De Koning
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Shock absorbing system for suction dredgers
- Patent number 4,123,859
- Issue date Nov 7, 1978
- Ballast-Nedam Groep N.V.
- Jan de Koning
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Oil-water separator
- Patent number 4,123,365
- Issue date Oct 31, 1978
- Ballast-Nedam Groep N.V.
- Cornelis G. Middelbeek
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Suction dredge with swell compensating ladder mount
- Patent number 4,084,334
- Issue date Apr 18, 1978
- Ballast Nedam Groep N.V.
- Tjako Aaldrik Wolters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Flexible connecting arrangement for suction dredgers
- Patent number 4,083,135
- Issue date Apr 11, 1978
- Ballast-Nedam Groep, N.V.
- Theodorus van den Brink
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Swingable water and slush tube assembly for suction dredgers
- Patent number 4,083,133
- Issue date Apr 11, 1978
- Ballast Nedam Groep N.V.
- Cornelis Jan Ravesteyn
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Device for collecting light-weight substances floating on a liquid...
- Patent number 4,059,526
- Issue date Nov 22, 1977
- Ballast Nedam Groep N.V.
- Cornelis Gerardus Middelbeek
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method for collecting light-weight substance floating on a liquid s...
- Patent number 4,046,691
- Issue date Sep 6, 1977
- Ballast-Nedam Groep, N.V.
- Eric Irons
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Ballast Nedam Groep N.V.

Organization

Patents Grantslast 30 patents

Method and device for compacting soil

Dredged soil conveying vessel

Watertight seal between two concrete elements

Method of dredging and dredging implement

Balanced supplemental water bleed for suction dredgers

Method of constructing an artificial island and island constructed...

Method of accurately dredging a desired profile contour

Device for separating a mixture

Transport conduit

Suction dredger and method of loading the same

Dredging vessel

Device for cutting loose hard ground material

Separating device

Suction dredger vessel and method of loading the hold of the same

Method and device for loosening stony soil

Method and apparatus for breaking up lumps of stone from a subaqueo...

Method and device for separating a mixture

Device for separating water from substances contained therein

Method for collecting light-weight substances floating on a liquid...

Flexible connections for suction dredger pipes

Shock absorbing system for suction dredgers

Oil-water separator

Suction dredge with swell compensating ladder mount

Flexible connecting arrangement for suction dredgers

Swingable water and slush tube assembly for suction dredgers

Device for collecting light-weight substances floating on a liquid...

Method for collecting light-weight substance floating on a liquid s...