Patents by Inventor Duncan MACRAE

Duncan MACRAE 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: 10945472
    Abstract: A pocket system that integrates a bag and apparel, including a fabric storage compartment when in use as a bag, and a bag component storage compartment when in use as apparel, with a continuous compartment for storing items while as a bag, apparel and through conversion from bag to apparel and vice versa. When in a bag embodiment, the fabric of the apparel is drawn out of the fabric storage compartment, inverting said compartment, forming a new compartment into which the bag components are drawn and stored. When in apparel mode, the process is reversed to complete the transformation, i.e. the bag components are removed from the storage pocket, drawing the apparel material into the newly formed pocket.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: March 16, 2021
    Assignee: SKAPYA LTD.
    Inventor: Duncan Macrae
  • Publication number: 20160174633
    Abstract: A pocket system that integrates a bag and apparel, including a fabric storage compartment when in use as a bag, and a bag component storage compartment when in use as apparel, with a continuous compartment for storing items while as a bag, apparel and through conversion from bag to apparel and vice versa. When in a bag embodiment, the fabric of the apparel is drawn out of the fabric storage compartment, inverting said compartment, forming a new compartment into which the bag components are drawn and stored. When in apparel mode, the process is reversed to complete the transformation, i.e. the bag components are removed from the storage pocket, drawing the apparel material into the newly formed pocket.
    Type: Application
    Filed: July 16, 2014
    Publication date: June 23, 2016
    Inventor: Duncan MACRAE
  • Patent number: 6477838
    Abstract: An improved hydrostatic transmission useful as a speed changing device having a single output shaft or a pair of outwardly extending shafts for use, for example, in small vehicles such as lawn and garden tractors. The hydrostatic transmission output may be mechanically coupled to the wheel driving axle by a gear or chain drive, or alternatively may have such means included in the same housing package containing the hydrostatic transmission. When a differential action is needed between the drive wheels of the vehicle, the differential may then also be included in the same housing package. In whichever of such configurations, the hydrostatic transmission comprises a radial piston pump fluidly coupled to a single or twin larger displacement axial piston motor of the swash-plate type by means of a fluid coupling valve supported by the housing.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: November 12, 2002
    Assignee: Hydro-Thoma Limited
    Inventors: Christian Helmut Thoma, George Duncan MacRae Arnold