Patents by Inventor Jan Pieter Wetsema

Jan Pieter Wetsema 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: 11002069
    Abstract: A Venetian blind to be fitted to an architectural frame, including a first rail; a second rail; and a transfer mechanism, wherein: the first rail includes a tilt controller configured to control tilting of the blind, the second rail includes a control actuator, and the transfer mechanism mechanically couples the control actuator and the tilt controller to transfer movement of the control actuator to the tilt controller.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: May 11, 2021
    Assignee: HUNTER DOUGLAS INDUSTRIES B.V.
    Inventors: Nicolaas Dekker, Christianus Wilfred Michael Slobbe, David Peter Martin, Jan Pieter Wetsema
  • Publication number: 20180347267
    Abstract: A Venetian blind to be fitted to an architectural frame, including a first rail; a second rail; and a transfer mechanism, wherein: the first rail includes a tilt controller configured to control tilting of the blind, the second rail includes a control actuator, and the transfer mechanism mechanically couples the control actuator and the tilt controller to transfer movement of the control actuator to the tilt controller.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Inventors: Nicolaas Dekker, Christianus Wilfred Michael Slobbe, David Peter Martin, Jan Pieter Wetsema
  • Patent number: 7631682
    Abstract: A retractable window covering that has a flexible fabric panel having a bottom edge with a weight bar attached to it. The fabric panel has one or more elongate pockets across its width, accommodating a length-expanding stiffening rod with: an elongate guiding element of non-magnetic material; a first magnet guided for movement along the elongate guiding element; and a second magnet guided for movement along the elongate guiding element and positioned in respect of the first magnet, so that the first and second magnets repulse one another and the guiding element limits and guides the movement of the first and second magnets in respect to one another.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: December 15, 2009
    Assignee: Hunter Douglas Industries BV
    Inventors: Franciscus Cornelis Gerardus Lamers, Jan Pieter Wetsema, Hans de Lange
  • Patent number: 7562688
    Abstract: A cradle for rotatably supporting at least one drive spool for a window covering about which a drive cord is windable includes a pair of left and right bearing blocks in side-by-side relationship, a bottom web connecting the left and right bearing blocks and a first opening in the bottom of the cradle for at least one cord portion of the drive cord to extend through and wherein the cradle further includes at least one cord guide on the bottom web or on one of the bearing blocks.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: July 21, 2009
    Assignee: Hunter Douglas Industries BV
    Inventor: Jan Pieter Wetsema
  • Patent number: 7464742
    Abstract: A cord spool for winding a lift cord for lifting or lowering a window covering wherein the cord spool includes an elongated general cylindrical body with a large diameter end and a small diameter end and a circumferential outer surface of a given length extending therebetween. The circumferential outer surface having a plurality of generally parallely extending longitudinal ribs. The cord spool can be provided as part of a lifting and lowering mechanism for a blind further including a rotatable drive shaft and at least one lift cord. A support is provided for rotatably supporting the cord spool and the support may be attached to a head rail by means of a separate cord guiding grommet in the head rail. It may also include means for supporting a drive mechanism. The cord spool can be constructed from two halves and may also include an end plug, which can be snap-indexed between relative angular positions to adjust the cord length.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: December 16, 2008
    Assignee: Hunter Douglas Industries BV
    Inventors: Herman Oskam, Nicolaas Dekker, Jan Pieter Wetsema
  • Publication number: 20040144501
    Abstract: A cord spool for winding a lift cord for lifting or lowering a window covering wherein the cord spool includes an elongated general cylindrical body with a large diameter end and a small diameter end and a circumferential outer surface of a given length extending therebetween. The circumferential outer surface having a plurality of generally parallely extending longitudinal ribs. The cord spool can be provided as part of a lifting and lowering mechanism for a blind further including a rotatable drive shaft and at least one lift cord. A support is provided for rotatably supporting the cord spool and the support may be attached to a head rail by means of a separate cord guiding grommet in the head rail. It may also include means for supporting a drive mechanism. The cord spool can be constructed from two halves and may also include an end plug, which can be snap-indexed between relative angular positions to adjust the cord length.
    Type: Application
    Filed: December 15, 2003
    Publication date: July 29, 2004
    Applicant: Hunter Douglas Industries BV
    Inventors: Herman Oskam, Nicolaas Dekker, Jan Pieter Wetsema