Patents by Inventor Duncan Duff McGregor

Duncan Duff McGregor 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: 12037823
    Abstract: A window stay including a frame mounting plate (10); a sash mounting plate (11); a short arm (12) coupled by pivots at each end to the frame mounting plate (10) and the sash mounting plate (11); and an elongate long arm (13) coupled by pivots at each end to the frame mounting plate (10) and sash mounting plate (11), wherein the stay includes a first stop (33) and a second stop (102) acting as limiters at a fully open position of the window stay.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: July 16, 2024
    Assignee: ASSA ABLOY New Zealand Limited
    Inventors: Duncan Duff McGregor, Bryce Alan Molloy
  • Patent number: 11091940
    Abstract: A window stay including a frame mounting plate (10); a sash mounting plate (11); a short arm (12) coupled by pivots at each end to the frame mounting plate (10) and the sash mounting plate (11); and an elongate long arm (13) coupled by pivots at each end to the frame mounting plate (10) and sash mounting plate (11), wherein the stay includes a first stop (33) and a second stop (102) acting as limiters at a fully open position of the window stay.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: August 17, 2021
    Assignee: ASSA ABLOY NEW ZEALAND LIMITED
    Inventors: Duncan Duff McGregor, Bryce Alan Molloy
  • Patent number: 11060336
    Abstract: A window stay, comprising: a frame plate; at least one arm coupled to the frame plate by a frame plate pivot; and a bearing plate engaged with the frame plate, the bearing plate and the frame plate together configured to be mounted to a window frame; wherein the bearing plate comprises a reinforcing insert for spreading a load applied through at least part of the at least one arm to the bearing plate; wherein the reinforcing insert is made of a material with more strength and/or rigidity than the material of the bearing plate. A window stay comprising: a frame plate; at least one arm coupled to the frame plate by a frame plate pivot; and a bearing plate engaged with the frame plate, the bearing plate and the frame plate together configured to be mounted to a window frame having a frame channel; wherein the bearing plate comprises a support member for supporting the bearing plate above the frame channel; wherein the support member is a projection that extends from beneath the bearing plate.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: July 13, 2021
    Assignee: ASSA ABLOY NEW ZEALAND LIMITED
    Inventor: Duncan Duff Mcgregor
  • Publication number: 20210071453
    Abstract: A window stay including a frame mounting plate (10); a sash mounting plate (11); a short arm (12) coupled by pivots at each end to the frame mounting plate (10) and the sash mounting plate (11); and an elongate long arm (13) coupled by pivots at each end to the frame mounting plate (10) and sash mounting plate (11), wherein the stay includes a first stop (33) and a second stop (102) acting as limiters at a fully open position of the window stay.
    Type: Application
    Filed: November 23, 2020
    Publication date: March 11, 2021
    Applicant: ASSA ABLOY NEW ZEALAND LIMITED
    Inventors: Duncan Duff MCGREGOR, Bryce Alan MOLLOY
  • Patent number: 10738521
    Abstract: A sliding door roller system comprises a roller housing comprising a pair of generally vertical side members and an integral base portion including a projection on an inner surface thereof, the roller housing at least partially disposed within an outer housing; at least one roller wheel rotatably coupled to the roller housing; an outer housing moveable relative to the roller housing and the at least one roller wheel in a direction perpendicular to a rotational axis of the at least one roller wheel; and a rotatable adjustment mechanism coupled to the roller housing and the outer housing. The adjustment mechanism is rotatable from an exterior of the outer housing and is adapted to index the outer housing relative to the roller housing in a plurality of height positions in situ under load of a panel secured to the outer housing.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 11, 2020
    Assignee: Interlock USA, Inc.
    Inventors: Trudi Anne Hamilton, Duncan Duff McGregor, Nolan Lloyd Couzyn
  • Publication number: 20190368253
    Abstract: A window stay, comprising: a frame plate; at least one arm coupled to the frame plate by a frame plate pivot; and a bearing plate engaged with the frame plate, the bearing plate and the frame plate together configured to be mounted to a window frame; wherein the bearing plate comprises a reinforcing insert for spreading a load applied through at least part of the at least one arm to the bearing plate; wherein the reinforcing insert is made of a material with more strength and/or rigidity than the material of the bearing plate. A window stay comprising: a frame plate; at least one arm coupled to the frame plate by a frame plate pivot; and a bearing plate engaged with the frame plate, the bearing plate and the frame plate together configured to be mounted to a window frame having a frame channel; wherein the bearing plate comprises a support member for supporting the bearing plate above the frame channel; wherein the support member is a projection that extends from beneath the bearing plate.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 5, 2019
    Inventor: Duncan Duff MCGREGOR
  • Publication number: 20190360244
    Abstract: A window stay including a frame mounting plate (10); a sash mounting plate (11); a short arm (12) coupled by pivots at each end to the frame mounting plate (10) and the sash mounting plate (11); and an elongate long arm (13) coupled by pivots at each end to the frame mounting plate (10) and sash mounting plate (11), wherein the stay includes a first stop (33) and a second stop (102) acting as limiters at a fully open position of the window stay.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 28, 2019
    Inventors: Duncan Duff MCGREGOR, Bryce Alan MOLLOY
  • Publication number: 20190194995
    Abstract: A panel carriage hanger slidable along a track and having a body, rollers attached to the body to allow the body to travel along the track and a cylindrical bore in the body. The cylindrical bore has a lip including a plurality of castellations. The panel carriage hanger includes an anti-rotating sleeve inserted into the cylindrical bore, the castellations of the anti-rotating sleeve are mateable with the castellations of the cylindrical bore. The anti-rotating sleeve is movable from a first position in the bore where the anti-rotating sleeve can rotate in the bore and a second position in the bore where the castellations of the anti-rotating sleeve and the castellations of the cylindrical bore mate such that the anti-rotating sleeve cannot rotate.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 27, 2019
    Inventors: Duncan Duff McGregor, Nolan Couzyn, Bryce Alan Molloy, Peter Qin
  • Publication number: 20180283070
    Abstract: A sliding door roller system comprises a roller housing comprising a pair of generally vertical side members and an integral base portion including a projection on an inner surface thereof, the roller housing at least partially disposed within an outer housing; at least one roller wheel rotatably coupled to the roller housing; an outer housing moveable relative to the roller housing and the at least one roller wheel in a direction perpendicular to a rotational axis of the at least one roller wheel; and a rotatable adjustment mechanism coupled to the roller housing and the outer housing. The adjustment mechanism is rotatable from an exterior of the outer housing and is adapted to index the outer housing relative to the roller housing in a plurality of height positions in situ under load of a panel secured to the outer housing.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Inventors: Trudi Anne Hamilton, Duncan Duff McGregor, Nolan Lloyd Couzyn
  • Patent number: 6598910
    Abstract: A fastener for a closure. The fastener has a friction joint which couples first (10) and second (23) elements such that rotational movement there between can occur. The friction joint has a head fastener (28) and a sleeve (24) to which an end load is applied upon axial movement of the fastening taking place during coupling of the first and second elements (10, 23). This end load causes the sleeve (24) to collapse. The fastener has a wedge element (37) mounted for rectilinear movement in a direction substantially transversed to the axis of rotational movement of the friction joint. A drive arrangement (35) couples the wedge element (37) with the second element (23) such that rotation of the second element (23) is translated into the rectilinear movement of the wedge element (37). A removable handle (44) couples via fingers (49) to second element (23).
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: July 29, 2003
    Assignee: Interlock Group Limited
    Inventors: Duncan Duff McGregor, Aaron Goldsbury
  • Publication number: 20020093208
    Abstract: A fastener for a closure. The fastener has a friction joint which couples first (10) and second (23) elements such that rotational movement there between can occur. The friction joint has a head fastener (28) and a sleeve (24) to which an end load is applied upon axial movement of the fastening taking place during coupling of the first and second elements (10, 23). This end load causes the sleeve (24) to collapse. The fastener has a wedge element (37) mounted for rectilinear movement in a direction substantially transversed to the axis of rotational movement of the friction joint. A drive arrangement (35) couples the wedge element (37) with the second element (23) such that rotation of the second element (23) is translated into the rectilinear movement of the wedge element (37). A removable handle (44) couples via fingers (49) to second element (23).
    Type: Application
    Filed: January 17, 2001
    Publication date: July 18, 2002
    Inventors: Duncan Duff McGregor, Aaron Goldsbury
  • Patent number: D891242
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 28, 2020
    Assignee: ASSA ABLOY New Zealand Limited
    Inventors: Duncan Duff McGregor, Bryce Alan Molloy