Patents by Inventor Bert Meijer

Bert Meijer 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: 20060163859
    Abstract: A dual jack has a linear actuator guided in a track of the jack with opposite ends of the actuator connected to opposite legs of the jack to extend and retract the legs. Two dual jacks can be powered with a single pump providing fluid under pressure to the two actuators through a flow divider circuit to provide synchronized extension and retraction of all four legs of the two jacks.
    Type: Application
    Filed: November 29, 2005
    Publication date: July 27, 2006
    Inventors: Gary Lehman, Bert Meijer, Haiko Freriksen
  • Publication number: 20050248172
    Abstract: A slide out actuating mechanism for selectively extending and retracting a slidable section of a slide out assembly fixed to a vehicle body includes at least two double acting fluid actuated actuators. Each actuator has a cylinder and an extendible ram. Each cylinder is fixed relative to one of the vehicle body and the slidable section, and each ram is fixed relative to the other of the vehicle body and the slidable section. At least one flow divider having at least two fluid ports directs fluid to and from the cylinders. One of the fluid ports is in fluid communication with one of the cylinders and the other of the fluid ports being in fluid communication with the other of the cylinders, wherein the flow divider maintains the flow of fluid flowing through the ports at substantially equal flow rates to synchronize movement of the rams when moving the rams relative to the cylinders.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 10, 2005
    Inventors: Bert Meijer, Haiko Freriksen
  • Patent number: 6932403
    Abstract: A slide out actuating mechanism for selectively extending and retracting a slidable section of a slide out assembly fixed to a vehicle body includes at least two double acting fluid actuated actuators. Each actuator has a cylinder and an extendible ram. Each cylinder is fixed relative to one of the vehicle body and the slidable section, and each ram is fixed relative to the other of the vehicle body and the slidable section. At least one flow divider having at least two fluid ports directs fluid to and from the cylinders. One of the fluid ports is in fluid communication with one of the cylinders and the other of the fluid ports being in fluid communication with the other of the cylinders, wherein the flow divider maintains the flow of fluid flowing through the ports at substantially equal flow rates to synchronize movement of the rams when moving the rams relative to the cylinders.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: August 23, 2005
    Assignee: Actuant Corporation
    Inventors: Bert Meijer, Haiko Freriksen
  • Publication number: 20040130173
    Abstract: A slide out actuating mechanism for selectively extending and retracting a slidable section of a slide out assembly fixed to a vehicle body includes at least two double acting fluid actuated actuators. Each actuator has a cylinder and an extendible ram. Each cylinder is fixed relative to one of the vehicle body and the slidable section, and each ram is fixed relative to the other of the vehicle body and the slidable section. At least one flow divider having at least two fluid ports directs fluid to and from the cylinders. One of the fluid ports is in fluid communication with one of the cylinders and the other of the fluid ports being in fluid communication with the other of the cylinders, wherein the flow divider maintains the flow of fluid flowing through the ports at substantially equal flow rates to synchronize movement of the rams when moving the rams relative to the cylinders.
    Type: Application
    Filed: October 28, 2003
    Publication date: July 8, 2004
    Inventors: Bert Meijer, Haiko Freriksen
  • Patent number: 6655723
    Abstract: A vehicle including a stationary floor and an upwardly extending exterior wall fixed relative to the stationary floor. An opening formed in the exterior wall receives a slide-out section disposed therein, The slide-out section is movable relative to the stationary floor between an extended position and a retracted position. An actuating mechanism controls the movement of the slide-out section. The actuating mechanism includes at least one hydraulic actuator having an extendible ram extendible from a cylinder. The extendible ram is fixed to at least one of the stationary floor and the slide-out section, and the cylinder is fixed to the other of the stationary floor and the slide-out section. Retraction of the extendible ram slidably moves the slide-out section to the extended position.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: December 2, 2003
    Assignee: Actuant Corporation
    Inventors: Bert Meijer, Haiko Freriksen, Leo de Jong
  • Publication number: 20030107229
    Abstract: A vehicle including a stationary floor and an upwardly extending exterior wall fixed relative to the stationary floor. An opening formed in the exterior wall receives a slide-out section disposed therein, The slide-out section is movable relative to the stationary floor between an extended position and a retracted position. An actuating mechanism controls the movement of the slide-out section. The actuating mechanism includes at least one hydraulic actuator having an extendible ram extendible from a cylinder. The extendible ram is fixed to at least one of the stationary floor and the slide-out section, and the cylinder is fixed to the other of the stationary floor and the slide-out section. Retraction of the extendible ram slidably moves the slide-out section to the extended position.
    Type: Application
    Filed: November 21, 2002
    Publication date: June 12, 2003
    Inventors: Bert Meijer, Haiko Freriksen, Leo de Jong