Patents by Inventor Donald A. McLean
Donald A. McLean 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).
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Publication number: 20230135410Abstract: Techniques for assigning users to buckets for use in bucket experiments are disclosed. Disclosed systems and methods provide systems and methods for making automatic bucket assignments using Nearest Neighbor Matching (NNM). In one embodiment, an iterative approach is used in assigning users to buckets, such that in a given iteration selected users are assigned to a number of buckets, the selected users being an initial user selected from a pool of users and other users selected using pairwise distances associated with the initial user and the other users.Type: ApplicationFiled: October 28, 2021Publication date: May 4, 2023Inventors: Yan HE, Miao CHEN, Wai Lim CHOI, Lin YU, Chandrashekhar SHAW, Donald McLEAN, Mahendrasinh JADAV
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Publication number: 20170248383Abstract: A firearm disabling system is disclosed. The firearm disabling system includes a control circuit configured to detect one or more operational parameters of a firearm associated with an unauthorized use scenario. A foam deployment system is in signal communication with the control circuit. The foam deployment system is configured to disable one or more mechanical functions of the firearm.Type: ApplicationFiled: April 4, 2017Publication date: August 31, 2017Applicant: DM Innovations, LLCInventor: Donald A. McLean, III
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Patent number: 9644911Abstract: A firearm disabling system is disclosed. The firearm disabling system includes a control circuit configured to detect one or more operational parameters of a firearm associated with an unauthorized use scenario. A foam deployment system is in signal communication with the control circuit. The foam deployment system is configured to disable one or more mechanical functions of the firearm.Type: GrantFiled: February 29, 2016Date of Patent: May 9, 2017Assignee: DM Innovations, LLCInventor: Donald A. McLean, III
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Patent number: 8683727Abstract: A firearm accessory part has a locator module and a transmitter module. The locator module is operable to determine the locator module's position. The transmitter module is operable to transmit the position of the locator module. The firearm accessory part is a replacement part for a firearm. Removal of the firearm accessory part from the firearm may disable a feature of the firearm. Removal of the firearm from a storage device may activate the locator module and transmitter module. The invention also includes a method of assembling a firearm consisting of the steps of obtaining a firearm, obtaining a firearm accessory part, removing a part of the firearm corresponding to the firearm accessory part, and replacing the part removed from the firearm with the firearm accessory part.Type: GrantFiled: November 22, 2010Date of Patent: April 1, 2014Assignee: DM InnovationsInventor: Donald A. McLean, III
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Publication number: 20120125189Abstract: A firearm accessory part has a locator module and a transmitter module. The locator module is operable to determine the locator module's position. The transmitter module is operable to transmit the position of the locator module. The firearm accessory part is a replacement part for a firearm. Removal of the firearm accessory part from the firearm may disable a feature of the firearm. Removal of the firearm from a storage device may activate the locator module and transmitter module. The invention also includes a method of assembling a firearm consisting of the steps of obtaining a firearm, obtaining a firearm accessory part, removing a part of the firearm corresponding to the firearm accessory part, and replacing the part removed from the firearm with the firearm accessory part.Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Inventor: Donald A. McLean, III
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Publication number: 20080047537Abstract: A pneumatic drive for an active paintball loader capable of supplying paintballs to a paintball marker at a sufficiently high rate that is coordinated with firing the marker using compressed gas to a provide the motive power.Type: ApplicationFiled: August 25, 2006Publication date: February 28, 2008Inventors: Donald Lee Kulp, Robert E. Long, Donald A. McLean
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Patent number: 7199376Abstract: A method of monitoring health in chlorophyll containing matter comprises exposing the matter to a light source to cause chlorophyll to fluoresce and emit a fluorescence signal. Any changes in a parameter indicative of changes in the intensity of the fluorescence signal are detected and compared with a predetermined threshold. A change which exceeds the predetermined threshold is interpreted as a transition of the level of stress in the chlorophyll containing matter. An apparatus for monitoring health in chlorophyll containing matter is also provided and comprises a light source for causing chlorophyll in the matter to fluoresce, a detector for detecting the intensity the fluorescent signal, means for measuring changes in a parameter indicative of changes in the intensity of the fluorescent signal and a detector to detect an increase in the change of the parameter above a predetermined threshold.Type: GrantFiled: July 16, 2001Date of Patent: April 3, 2007Assignee: Her Majesty the Queen in Right of Canada as represented by the Minister of Agriculture and Agri-Food CanadaInventors: Robert Prange, John Delong, Peter Harrison, Jerry Leyte, Scott Donald McLean, Jeffrey Garrett Edmund Scrutton, John Joseph Cullen
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Patent number: 7053281Abstract: A cotton cultivar, designated 4646B2R, is disclosed. The invention relates to the seeds of cotton cultivar 4646B2R, to the plants of cotton 4646B2R and to methods for producing a cotton plant produced by crossing the cultivar 4646B2R with itself or another cotton variety. The invention further relates to hybrid cotton seeds and plants produced by crossing the cultivar 4646B2R with another cotton cultivar.Type: GrantFiled: July 6, 2004Date of Patent: May 30, 2006Assignee: Emergent Genetics, Inc.Inventors: Michael Ray Robinson, Donald McLean Panter, Jr.
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Publication number: 20050192541Abstract: The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. These complementary surfaces afford initial resistance to further axial movement of the plunger toward the adapter, signalling the user that further axial pressure will permanently lock the plunger and adapter to one another whereby, upon application of full axial pressure on the plunger, the complementary surfaces of the plunger and adapter permanently lock to one another to enable joint unitary movement of the plunger and adapter together with the needle carried by the adapter into the barrel.Type: ApplicationFiled: January 29, 2004Publication date: September 1, 2005Inventors: Laurel Novacek, Fraser Sharp, Donald McLean
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Patent number: 6925668Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element. The carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises a control mechanism for lowering or raising the at least one supporting element, wherein the control mechanism includes a force load switch for activating the lowering or raising of the at least one supporting element, wherein the force load switch activates the lowering or raising of the at least one supporting element upon detecting compressive and/or tensile forces or motions acting via the at least one supporting element on the force load switch.Type: GrantFiled: June 14, 2004Date of Patent: August 9, 2005Assignee: University of DundeeInventors: Alfred Cuschieri, Timothy Graham Frank, Ian Rutherford, Donald McLean, Stuart I. Brown
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Patent number: 6878131Abstract: The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. These complementary surfaces afford initial resistance to further axial movement of the plunger toward the adapter, signalling the user that further axial pressure will permanently lock the plunger and adapter to one another whereby, upon application of full axial pressure on the plunger, the complementary surfaces of the plunger and adapter permanently lock to one another to enable joint unitary movement of the plunger and adapter together with the needle carried by the adapter into the barrel.Type: GrantFiled: January 11, 2002Date of Patent: April 12, 2005Assignee: Inviro Medical Devices, Ltd.Inventors: Laurel A. Novacek, Fraser R. Sharp, Donald A. McLean
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Publication number: 20050015879Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element. The carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises a control mechanism for lowering or raising the at least one supporting element, wherein the control mechanism includes a force load switch for activating the lowering or raising of the at least one supporting element, wherein the force load switch activates the lowering or raising of the at least one supporting element upon detecting compressive and/or tensile forces or motions acting via the at least one supporting element on the force load switch.Type: ApplicationFiled: June 14, 2004Publication date: January 27, 2005Inventors: Alfred Cuschieri, Timothy Frank, Ian Rutherford, Donald McLean, Stuart Brown
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Publication number: 20030146394Abstract: A method of monitoring health in chlorophyll containing matter comprises exposing the matter to a light source to cause chlorophyll to fluoresce and emit a fluorescence signal. Any changes in a parameter indicative of changes in the intensity of the fluorescence signal are detected and compared with a predetermined threshold. A change which exceeds the predetermined threshold is interpreted as a transition of the level of stress in the chlorophyll containing matter. An apparatus for monitoring health in chlorophyll containing matter is also provided and comprises a light source for causing chlorophyll in the matter to fluoresce, a detector for detecting the intensity the fluorescent signal, means for measuring changes in a parameter indicative of changes in the intensity of the fluorescent signal and a detector to detect an increase in the change of the parameter above a predetermined threshold.Type: ApplicationFiled: January 14, 2003Publication date: August 7, 2003Inventors: Robert Prange, John Delong, Peter Harrison, Jerry Leyte, Scott Donald McLean, Jeffrey Garrett Edmund Scrutton, John Joseph Cullen
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Publication number: 20020065489Abstract: The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. These complementary surfaces afford initial resistance to further axial movement of the plunger toward the adapter, signalling the user that further axial pressure will permanently lock the plunger and adapter to one another whereby, upon application of full axial pressure on the plunger, the complementary surfaces of the plunger and adapter permanently lock to one another to enable joint unitary movement of the plunger and adapter together with the needle carried by the adapter into the barrel.Type: ApplicationFiled: January 11, 2002Publication date: May 30, 2002Applicant: INVIRO MEDICAL DEVICES, LTD.Inventors: Laurel A. Novacek, Fraser R. Sharp, Donald A. McLean
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Patent number: 6344031Abstract: The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. These complementary surfaces afford initial resistance to further axial movement of the plunger toward the adapter, signalling the user that further axial pressure will permanently lock the plunger and adapter to one another whereby, upon application of full axial pressure on the plunger, the complementary surfaces of the plunger and adapter permanently lock to one another to enable joint unitary movement of the plunger and adapter together with the needle carried by the adapter into the barrel.Type: GrantFiled: August 15, 2000Date of Patent: February 5, 2002Inventors: Laurel A. Novacek, Fraser R. Sharp, Donald A. McLean
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Patent number: 6183464Abstract: The syringe includes a barrel, a plunger and an adapter for mounting the needle in the distal end of the barrel. The proximal end of the plunger includes a plurality of circumferentially spaced teeth having radially projecting fingers with contact surfaces. The adapter includes a plurality of circumferentially spaced teeth having undercut surfaces. By advancing the plunger to engage the adapter and rotating the plunger relative to the adapter and syringe barrel, the plunger and adapter are locked to one another. By further rotating the plunger and adapter, the adapter is unscrewed from the barrel end and withdrawn with the syringe needle into the interior of the barrel. The plunger may be broken off adjacent the adapter and inserted, broken end first, into the distal end of the barrel to seal the barrel.Type: GrantFiled: June 1, 1998Date of Patent: February 6, 2001Assignee: Inviro Medical Devices Ltd.Inventors: Fraser R. Sharp, Donald A. McLean
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Patent number: 6117113Abstract: A syringe has a barrel, a plunger and an adapter for threaded engagement with the distal end of the barrel. The adapter has a central axial passageway for passing fluid between proximal and distal ends. The plunger and adapter have cooperating engagement structure including connective and drive surfaces for connecting the plunger to the adapter and unthreading the adapter from the barrel end for withdrawal of the adapter into the interior of the barrel.Type: GrantFiled: December 14, 1999Date of Patent: September 12, 2000Assignee: Inviro Medical Devices Ltd.Inventors: Laurel A. Novacek, Fraser R. Sharp, Donald A. McLean
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Patent number: 6033386Abstract: The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. These complementary surfaces afford initial resistance to further axial movement of the plunger toward the adapter, signalling the user that further axial pressure will permanently lock the plunger and adapter to one another whereby, upon application of full axial pressure on the plunger, the complementary surfaces of the plunger and adapter permanently lock to one another to enable joint unitary movement of the plunger and adapter together with the needle carried by the adapter into the barrel.Type: GrantFiled: December 18, 1998Date of Patent: March 7, 2000Assignee: Inviro Medical Devices, Ltd.Inventors: Laurel A. Novacek, Fraser R. Sharp, Donald A. McLean
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Patent number: 5877111Abstract: A donor sheet for providing a protective cover over a thermally transferred image which comprises a carrier base sheet having a surface coated with a layer of transparent thermally transferable cover material, the cover material comprising a layer of submicron lamina particles and sufficient of a thermoplastic binder to provide the layer with physical integrity and adhesion to the carrier base sheet is disclosed. The lamina particles of the cover material are incorporated to provide a physical barrier for reducing ingress of dye-leaching materials such as grease and plasticizers commonly found in plastic wallets and other such containers.Type: GrantFiled: September 24, 1996Date of Patent: March 2, 1999Assignee: Imperial Chemical Industries PLCInventors: Christopher Bennett, Thomas Donald McLean
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Patent number: 5688240Abstract: The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. These complementary surfaces afford initial resistance to further axial movement of the plunger toward the adapter, signalling the user that further axial pressure will permanently lock the plunger and adapter to one another whereby, upon application of full axial pressure on the plunger, the complementary surfaces of the plunger and adapter permanently lock to one another to enable joint unitary movement of the plunger and adapter together with the needle carried by the adapter into the barrel.Type: GrantFiled: February 22, 1996Date of Patent: November 18, 1997Assignee: Inviro Medical Devices Ltd.Inventors: Laurel A. Novacek, Fraser R. Sharp, Donald A. McLean