Patents by Inventor Ralph Gerardus Franciscus Herman Kweens

Ralph Gerardus Franciscus Herman Kweens 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).

  • Scaffolding, coupling device and method for erecting a scaffolding
    Publication number: 20210032885
    Abstract: During erection of a scaffolding use is made of a coupling device with a base part (20) which is connected temporarily, but reliably, to a distal section of a ledger element (10) and to a coupling part (30) extending from the base part (20). The coupling part (30) comprises at the outer end a hook (35) which is placed round a subsequent upright (5) of the scaffolding in order to thus make a secondary connection thereto, while a primary connection (9,11) between the ledger (10) and the upright (5) is only completed later.
    Type: Application
    Filed: January 31, 2019
    Publication date: February 4, 2021
    Inventors: Petrus Christianus Johannus Maria Van Oers, Antonius Johannus Marinus Van Leent, Ralph Gerardus Franciscus Herman Kweens
  • Suspended scaffolding and suspending device therefore
    Patent number: 10174512
    Abstract: A suspended scaffold comprises a work platform (6) and at least one suspending device (2) via which the work platform (6) is attachable to an object (1). The suspending device (2) comprises a claw device (3) intended and configured to engage optionally directly on the object (1), and a coupling device (4). The claw device (3) is adjustable relative to the coupling device (4) between a first position (21) and a second position (22). The second position (22) lies spatially offset relative to the first position (21).
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: January 8, 2019
    Assignee: Brand Energy Holdings B. V.
    Inventors: Petrus Christianus Johanna Maria Van Oers, Ralph Gerardus Franciscus Herman Kweens, Cornelus Jacobus Scholten
  • SUSPENDED SCAFFOLDING AND SUSPENDING DEVICE THEREFORE
    Publication number: 20160230405
    Abstract: A suspended scaffold comprises a work platform (6) and at least one suspending device (2) via which the work platform (6) is attachable to an object (1). The suspending device (2) comprises a claw device (3) intended and configured to engage optionally directly on the object (1), and a coupling device (4). The claw device (3) is adjustable relative to the coupling device (4) between a first position (21) and a second position (22). The second position (22) lies spatially offset relative to the first position (21).
    Type: Application
    Filed: September 22, 2014
    Publication date: August 11, 2016
    Inventors: Petrus Christianus Johanna Maria Van Oers, Ralph Gerardus Franciscus Herman Kweens, Cornelus Jacobus Scholten