Patents by Inventor John F. Gray
John F. Gray 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: 20240115804Abstract: A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion-tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen.Type: ApplicationFiled: October 10, 2023Publication date: April 11, 2024Inventors: Dean KAMEN, John M. Kerwin, Colin H. Murphy, Jonathan Parker, Daniel F. Pawlowski, Dirk A. Van Der Merwe, Larry B. Gray, Christopher C. Langenfeld, Michael S Place, Michael J. Slate
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Patent number: 7131967Abstract: A drive mechanism for delivery of infusion medium. A coil surrounds a piston channel. An armature is located adjacent the coil. The armature is moveable toward a forward position in response to the electromagnetic field produced by activation of the coil. A piston located within the piston channel is moveable within the channel to a forward position in response to movement of the armature. The armature and piston are moved toward a retracted position when the coil is not energized. In the retracted position, a piston chamber formed between the piston and a valve member is filled with infusion medium. As the piston is moved to its forward position, piston chamber volume is reduced and pressure within the piston chamber increases and moves the valve member into an open position. Medium from the piston chamber is then discharged into an outlet chamber.Type: GrantFiled: February 19, 2003Date of Patent: November 7, 2006Assignee: Medtronic Minimed, Inc.Inventors: John F. Gray, Robert W. Bosley
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Patent number: 6997921Abstract: A drive mechanism for delivery of infusion medium has a coil and an armature moveable toward a forward position, in response to the electromagnetic field produced by activation of the coil. A piston is moveable axially within a piston channel to a forward position, in response to movement of the armature to its forward position. The armature and piston are moved toward a retracted position, when the coil is not energized. In the retracted position of the piston, a piston chamber is formed between the piston and a valve member and is filled with infusion medium. As the piston is moved to its forward position, the piston chamber volume is reduced and pressure within the piston chamber increases to a point where the pressure moves the valve member into an open position through an outlet.Type: GrantFiled: December 27, 2001Date of Patent: February 14, 2006Assignee: Medtronic Minimed, Inc.Inventors: John F. Gray, Robert W. Bosley
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Patent number: 6805693Abstract: A drive mechanism for delivery of infusion medium. A coil surrounds a piston channel. An armature is located adjacent the coil. The armature is moveable toward a forward position in response to the electromagnetic field produced by activation of the coil. A piston located within the piston channel is moveable within the channel to a forward position in response to movement of the armature. The armature and piston are moved toward a retracted position when the coil is not energized. In the retracted position, a piston chamber formed between the piston and a valve member is filled with infusion medium. As the piston is moved to its forward position, piston chamber volume is reduced and pressure within the piston chamber increases and moves the valve member into an open position. Medium from the piston chamber is then discharged into an outlet chamber.Type: GrantFiled: February 20, 2003Date of Patent: October 19, 2004Assignee: Medtronic Minimed, Inc.Inventors: John F. Gray, Robert W. Bosley
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Publication number: 20030135160Abstract: A drive mechanism for delivery of infusion medium a coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. The piston channel provides a passage for communication of infusion medium to an outlet chamber located at one end of the piston channel. An armature is located adjacent the coil, on one side of the axial channel. The armature is moveable toward a forward position, in response to the electromagnetic field produced by activation of the coil. A piston is located within the piston channel and is moveable axially within the channel to a forward position, in response to movement of the armature to its forward position. The armature and piston are moved toward a retracted position, when the coil is not energized. In the retracted position of the piston, a piston chamber is formed between the piston and a valve member and is filled with infusion medium.Type: ApplicationFiled: February 19, 2003Publication date: July 17, 2003Applicant: Medtronic MiniMed, Inc.Inventors: John F. Gray, Robert W. Bosley
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Publication number: 20030130647Abstract: A drive mechanism for delivery of infusion medium a coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. The piston channel provides a passage for communication of infusion medium to an outlet chamber located at one end of the piston channel. An armature is located adjacent the coil, on one side of the axial channel. The armature is moveable toward a forward position, in response to the electromagnetic field produced by activation of the coil. A piston is located within the piston channel and is moveable axially within the channel to a forward position, in response to movement of the armature to its forward position. The armature and piston are moved toward a retracted position, when the coil is not energized. In the retracted position of the piston, a piston chamber is formed between the piston and a valve member and is filled with infusion medium.Type: ApplicationFiled: February 20, 2003Publication date: July 10, 2003Applicant: Medtronic MiniMed, Inc.Inventors: John F. Gray, Robert W. Bosley
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Patent number: 6537268Abstract: Embodiments of medical infusion pumps are provided that include structural elements for providing sources of compliance within a fluid path within the pump. Some preferred embodiments provide implantable infusion pumps with compliance positioned between an exit port of a pumping mechanism and an outlet (e.g. an opening in a catheter) of the infusion pump. Other embodiments provide compliance in fluid path in proximity to entrance port of the pumping mechanism. Insertion of compliance in a flow path that is down stream of the pumping mechanism may aid in minimizing negative effects associated with attempting to force fluid through a restricted flow path that is further down-stream, such as that offered by a catheter or other outlet component. Insertion of compliance before the pumping mechanism may aid in reducing negative effects associated with an up stream restricted flow path, such as that which might be offered by a rigid filter located between the reservoir and the pumping mechanism.Type: GrantFiled: June 18, 1999Date of Patent: March 25, 2003Assignee: Medtronic MiniMed, Inc.Inventors: Scott R. Gibson, Peter C. Lord, Eric M. Lorenzen, Susan M. McConnell, John F. Gray, Robert W. Bosley
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Publication number: 20030050624Abstract: A drive mechanism for delivery of infusion medium a coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. The piston channel provides a passage for communication of infusion medium to an outlet chamber located at one end of the piston channel. An armature is located adjacent the coil, on one side of the axial channel. The armature is moveable toward a forward position, in response to the electromagnetic field produced by activation of the coil. A piston is located within the piston channel and is moveable axially within the channel to a forward position, in response to movement of the armature to its forward position. The armature and piston are moved toward a retracted position, when the coil is not energized. In the retracted position of the piston, a piston chamber is formed between the piston and a valve member and is filled with infusion medium.Type: ApplicationFiled: December 27, 2001Publication date: March 13, 2003Inventors: John F. Gray, Robert W. Bosley
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Patent number: PP12238Abstract: A distinct cultivar of Mandevilla plant named ‘Red Velvet’, characterized by its vigorous growth habit; rapid growth rate; large, glossy, dark green leaves; large flowers that are dark pink in color when temperatures are less than 29° C. and intensify to dark red in color when temperatures are greater than 29° C.; red flower throat color; and tolerance to low and high temperatures.Type: GrantFiled: September 19, 2000Date of Patent: November 27, 2001Assignee: Lake Area NurseryInventor: John F. Gray
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Patent number: PP12813Abstract: A distinct cultivar of Mandevilla plant named ‘Red Velvet Petite’, characterized by its compact growth habit; short internodes; relatively small, glossy, dark green leaves; flowers that are dark pink in color when temperatures are less than 29° C. and intensify to red in color when temperatures are greater than 29° C.; and tolerance to low and high temperatures.Type: GrantFiled: March 8, 2001Date of Patent: July 30, 2002Assignee: Lake Area NurseryInventor: John F. Gray
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Patent number: PP18012Abstract: A new and distinct cultivar of Mandevilla plant named ‘White Velvet’, characterized by its upright vining growth habit; glossy, dark green-colored leaves; white-colored flowers faintly overlain with red purple with imbricate petals with ruffled margins; and tolerance to low and high temperatures.Type: GrantFiled: February 10, 2006Date of Patent: September 11, 2007Assignee: Lake Area Nursery, Inc.Inventor: John F. Gray
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Patent number: PP15064Abstract: A new and distinct cultivar of Mandevilla plant named ‘Pink Velvet’, characterized by its upright vining growth habit; glossy, dark green-colored leaves; dark pink-colored flowers with imbricate petals with ruffled margins; and tolerance to low and high temperatures.Type: GrantFiled: November 18, 2003Date of Patent: August 3, 2004Assignee: Lake Area NurseryInventor: John F. Gray
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Patent number: PP10653Abstract: A distinct cultivar of Mandevilla plant named `Tropical Dreams`, characterized by its unique green and yellow variegated young foliage and green and white to ivory variegated mature foliage; large bright yellow flowers; and vigorous growth habit.Type: GrantFiled: July 25, 1997Date of Patent: October 20, 1998Assignee: Lake Area Nursery, Inc.Inventor: John F. Gray
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Patent number: D749825Type: GrantFiled: June 25, 2014Date of Patent: February 23, 2016Inventor: John F. Gray