Patents by Inventor Theodorus van den Brink

Theodorus van den Brink has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Flexible connections for suction dredger pipes
    Patent number: 4123860
    Abstract: Rigid pipe sections of a dredger are pivotally connected to allow universal movement therebetween and a flexible, elastic bellows communicates the adjacent ends of the pipe sections. The bellows in its free state is prestressed so as to be under compression and is further compressed when in place between the ends of the pipe sections.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: November 7, 1978
    Assignee: Ballast-Nedam Groep N.V.
    Inventors: Jan De Koning, Theodorus Van Den Brink, Tjako A. Wolters
  • Flexible connecting arrangement for suction dredgers
    Patent number: 4083135
    Abstract: A dredging pipe assembly includes at least two rigid sections physically connected together by a cardan joint and connected for fluid continuity by a pair of flexible sections disposed in spaced apart relation with the cardan joint between them. A flexible duct serving additional equipment bridges the cardan joint without interfering with the flexible sections.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: April 11, 1978
    Assignees: Ballast-Nedam Groep, N.V., Amsterdamse Ballast Bagger en Gran, b.v.
    Inventors: Theodorus van den Brink, Tjako Aaldrik Wolters