Patents by Inventor Gerardus Johannes Maria Lamers

Gerardus Johannes Maria Lamers 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).

  • Patent number: 6926631
    Abstract: A continuously variable transmission, provided with two adjustable pulleys, each pulley comprising a pair of mutually displaceable essentially frusto-conical pulley sheaves having a radial dimension provided on a pulley shaft, each sheave having a sheave face, whereby the sheave faces of a pulley are mutually oriented at a pulley angle, and with an endless flexible belt for transmitting torque comprising two lateral side faces, which are mutually oriented at a belt angle (alpha) such that the flexible belt tapers radially inwardly and which are intended for interacting with the sheave faces of a pulley under the influence of a clamping force to be exerted on the flexible belt by the sheaves. The belt angle is marginally, but notionally, larger than the pulley angle (beta) of at least one pulley for at least a substantial part of the radial dimension of the pulley sheaves.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: August 9, 2005
    Assignee: Van Doorne's Transmissie B.V.
    Inventors: Arjen Brandsma, Paulus Maria Smeets, Gerardus Johannes Maria Lamers
  • Publication number: 20030144097
    Abstract: A continuously variable transmission, provided with two adjustable pulleys, each pulley comprising a pair of mutually displaceable essentially frusto-conical pulley sheaves having a radial dimension provided on a pulley shaft, each sheave having a sheave face, whereby the sheave faces of a pulley are mutually oriented at a pulley angle, and with an endless flexible belt for transmitting torque comprising two lateral side faces, which are mutually oriented at a belt angle ( alpha ) such that the flexible belt tapers radially inwardly and which are intended for interacting with the sheave faces of a pulley under the influence of a clamping force to be exerted on the flexible belt by the sheaves. The belt angle is marginally, but notionally, larger than the pulley angle (beta) of at least one pulley for at least a substantial part of the radial dimension of the pulley sheaves.
    Type: Application
    Filed: November 20, 2002
    Publication date: July 31, 2003
    Inventors: Arjen Brandsma, Paulus Maria Smeets, Gerardus Johannes Maria Lamers
  • Patent number: 5800299
    Abstract: The invention relates to a continuously variable transmission, consisting of at least a transmission housing which accommodates a pulley/drive belt unit, a hydraulic circuit, in particular for the control and/or lubrication of the transmission, and a fluid reservoir. The transmission housing and/or the hydraulic circuit are provided with a way of promoting the flow of fluid to the bottom of the transmission housing from the rest of the transmission housing.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: September 1, 1998
    Assignee: Van Doorne's Transmissie B.V.
    Inventors: Gerardus Johannes Maria Lamers, Johannes gerardus Ludovicus Maria Van Spijk, Franciscus Cristianus Antonius Hubertus Willems