Patents by Inventor Carel Frederik HOFSTRA

Carel Frederik HOFSTRA 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).

  • Publication number: 20160186409
    Abstract: A suction head (1) for a dredger, includes;—an outlet (2) for fluidly coupling the suction head with a suction tube (3) for transport of dredge to the loading space of a floating dredger;—a sand inlet (4), which in use faces a sand bed (5) to be sucked away, for taking in a flow of dredge (6) in the suction head, and which flow of dredge runs in a dredge flow direction (7) at the sand inlet;—a side inlet (8) fluidly coupled with the sand inlet, wherein the side inlet and the outlet are arranged at opposite sides of the suction head for introducing a lateral flow (9) from outside the suction head into the suction head locally at the sand inlet, which lateral flow runs substantially transverse relative to the dredge flow direction.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 30, 2016
    Inventors: Carel Frederik HOFSTRA, Erwin Cornelis Johannes BIJVOET, Bram Adrianus Waltherus VAN SPAENDONK, Roland Andre Pieter HIGLER