Patents by Inventor Graham R. Purkins
Graham R. Purkins 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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Patent number: 9089661Abstract: A dose counter for use in connection with a device adapted for metered dispensing of a medication is described. The dose counter has a first count indicator that has a first indicia bearing surface, with the first count indicator being rotatable about a first axis. The dose counter also has a second count indicator that has a second indicia bearing surface, with the second count indicator being rotatable about a second axis. The second axis is disposed at an obtuse angle with respect to the first axis, and the first and second indicia bearing surfaces align at a common viewing area to collectively present at least a portion of a medication dosage count.Type: GrantFiled: July 2, 2013Date of Patent: July 28, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Adam J. Stuart, Graham R. Purkins, Rachel V. Striebig, Stephen J. Howgill, Peter D. Hodson, Richard D. Brewer, Benjamin J. Holden
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Patent number: 9067031Abstract: A metered dose valve for use in a pressurized metered dose dispenser for dispensing a metered dose of an aerosol formulation comprising particles of a medicament suspended in liquefied propellant, optionally in combination with one or more excipients, the valve comprising a metering chamber and at least one porous, fluid permeable, particulate semi-permeable body, the at least one porous body being positioned within a region of the interior conduit of the valve, for example within the metering chamber, or a pre-metering chamber and/or an internal channel upstream of the metering chamber.Type: GrantFiled: October 19, 2007Date of Patent: June 30, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Philip A. Jinks, Graham R. Purkins, Peter D. Hodson, Paul E. Hansen
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Patent number: 8740014Abstract: A dose counter for use with an inhaler comprising a container for medicament equipped with a reciprocal actuation means to dispense a dose of medicament therefrom, the dose counter comprising: a fixed ratchet member, a trigger member constructed and arranged to undergo reciprocal movement coordinated with the reciprocal movement between the actuation means and the container, said reciprocal movement comprising an outward stroke and a return stroke, a counter member constructed and arranged to undergo a predetermined counting movement each time a dose is dispensed, the counter member being biased towards the ratchet and trigger members and being capable of counting motion in a direction generally orthogonal to the direction of reciprocal movement of the trigger member, the counter member comprising: a first region for interaction with the trigger member which comprises at least one inclined surface which is engaged by the trigger member during its outward stroke causing the counter member to undergo counting mType: GrantFiled: November 30, 2004Date of Patent: June 3, 2014Assignee: 3M Innovative Properties CompanyInventors: Graham R. Purkins, Lee A. Kristensen, Sarah Jones, David J. Greenleaf
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Publication number: 20130291861Abstract: A dose counter for use in connection with a device adapted for metered dispensing of a medication is described. The dose counter has a first count indicator that has a first indicia bearing surface, with the first count indicator being rotatable about a first axis. The dose counter also has a second count indicator that has a second indicia bearing surface, with the second count indicator being rotatable about a second axis. The second axis is disposed at an obtuse angle with respect to the first axis, and the first and second indicia bearing surfaces align at a common viewing area to collectively present at least a portion of a medication dosage count.Type: ApplicationFiled: July 2, 2013Publication date: November 7, 2013Inventors: ADAM J. STUART, GRAHAM R. PURKINS, RACHEL V. STRIEBIG, STEPHEN J. HOWGILL, PETER D. HODSON, RICHARD D. BREWER, BENJAMIN J. HOLDEN
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Patent number: 8517019Abstract: This application discloses a dose counter device of the type for use on an aerosol dispensing assembly having an aerosol container and an actuator. The dose counter device is used for indicating the release of a dose of aerosol medication caused by the application of a force, in an axial direction, on the aerosol dispensing assembly. The dose counter device has a cap, a slider and a first counter ring. The cap is moved in a first direction along an axis of the container, which causes movement of the slider in a first linear direction laterally, relative to the axis of the container, as a function of the movement of the cap in the first direction. The first counter ring is rotated through a first arc in a first circumferential direction about the axis of the container, as a function of the movement of the slider in the first linear direction.Type: GrantFiled: March 1, 2007Date of Patent: August 27, 2013Assignee: 3M Innovative Properties CompanyInventors: Richard D. Brewer, Peter D. Hodson, Graham R. Purkins, David J.C. Steven
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Patent number: 8479732Abstract: A dose counter for use in connection with a device adapted for metered dispensing of a medication is described. The dose counter has a first count indicator that has a first indicia bearing surface, with the first count indicator being rotatable about a first axis. The dose counter also has a second count indicator that has a second indicia bearing surface, with the second count indicator being rotatable about a second axis. The second axis is disposed at an obtuse angle with respect to the first axis, and the first and second indicia bearing surfaces align at a common viewing area to collectively present at least a portion of a medication dosage count.Type: GrantFiled: April 20, 2007Date of Patent: July 9, 2013Assignee: 3M Innovative Properties CompanyInventors: Adam J. Stuart, Graham R. Purkins, Rachel V. Striebig, Stephen J. Howgill, Peter D. Hodson, Richard D. Brewer, Benjamin J. Holden
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Publication number: 20130037021Abstract: An actuator (2) for an inhaler (1) comprising a longitudinally extending body (3), a delivery passage at (or near to) a first end of the body (3) and a retained cover (7) for the delivery passage, the actuator (2) having at least one profile (9) arranged to guide the cover (7) from a closed position occluding at least a user-opening (6) of the delivery passage to a remote location in which the user-opening (6) of the delivery passage is unoccluded wherein the cover (7) and the at least one profile (9) are configured and arranged such that, in use of the actuator (2), in the guided movement of the cover (7) from the closed position to the remote location, the cover (7) is glided by the user towards the second end of the body (3).Type: ApplicationFiled: April 21, 2011Publication date: February 14, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Richard D. Brewer, Craig Davidson, Graham R. Purkins, Stephen J. Howgill
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Publication number: 20100199983Abstract: A metered dose valve for use in a pressurized metered dose dispenser for dispensing a metered dose of an aerosol formulation comprising particles of a medicament suspended in liquefied propellant, optionally in combination with one or more excipients, said valve comprising a metering chamber and at least one porous, fluid permeable, particulate semi-permeable body, said at least one porous body being positioned within a region of the interior conduit of the valve, for example within the metering chamber, or a pre-metering chamber and/or an internal channel upstream of the metering chamber.Type: ApplicationFiled: October 19, 2007Publication date: August 12, 2010Inventors: Philip A. Jinks, Graham R. Purkins, Peter D. Hodson, Paul E. Hansen
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Publication number: 20090308385Abstract: This application discloses a dose counter device of the type for use on an aerosol dispensing assembly having an aerosol container and an actuator. The dose counter device is used for indicating the release of a dose of aerosol medication caused by the application of a force, in an axial direction, on the aerosol dispensing assembly. The dose counter device has a cap, a slider and a first counter ring. The cap is moved in a first direction along an axis of the container, which causes movement of the slider in a first linear direction laterally, relative to the axis of the container, as a function of the movement of the cap in the first direction. The first counter ring is rotated through a first arc in a first circumferential direction about the axis of the container, as a function of the movement of the slider in the first linear direction.Type: ApplicationFiled: March 1, 2007Publication date: December 17, 2009Inventors: Richard D. Brewer, Peter D. Hodson, Graham R. Purkins, David J.C. Steven
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Publication number: 20090173346Abstract: This application discloses a dose counter for use in connection with a device adapted for metered dispensing of a medication. The dose counter has a first count indicator that has a first indicia bearing surface, with the first count indicator being rotatable about a first axis. The dose counter also has a second count indicator that has a second indicia bearing surface, with the second count indicator being rotatable about a second axis. The second axis is disposed at an obtuse angle with respect to the first axis, and the first and second indicia bearing surfaces align at a common viewing area to collectively present at least a portion of a medication dosage count.Type: ApplicationFiled: April 20, 2007Publication date: July 9, 2009Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Adam J. Stuart, Graham R. Purkins, Rachel V. Striebig, Stephen J. Howgill, Peter D. Hodson, Richard D. Brewer, Benjamin J. Holden
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Publication number: 20080202515Abstract: An inhalation device (1) comprising two or more hermetically sealed receptacles (39), each receptacle containing a single dose of a pressurized formulation comprising a pharmaceutically active ingredient and a liquefied aerosol propellant consisting of HFA 134a, HFA 227 or a mixture thereof and wherein at least a portion (39a) of each receptacle is perforable.Type: ApplicationFiled: December 12, 2005Publication date: August 28, 2008Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Peter D. Hodson, Stephen J. Howgill, Graham R. Purkins
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Publication number: 20080121666Abstract: A valve stem (13) for use with a metering valve, said valve stem (13) comprising an elongate stem element (12) having an elastomeric sleeve (9) molded onto at least a portion thereof and a sealing element (16) having an inner surface (7), said sealing element (16) being affixed onto the elongate stem element (12), such that at least a portion of the inner surface (7) of the sealing element (16) is overlying at least a portion of the elastomeric sleeve (9); as well as methods of manufacturing such a valve stem.Type: ApplicationFiled: June 14, 2004Publication date: May 29, 2008Inventor: Graham R. Purkins
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Patent number: 7234460Abstract: The present invention relates to a novel design for a metering valve that provides improved consistency of formulation delivery. Generally, the metering valve includes (a) a valve stem that generally defines a longitudinal axis and includes a body portion having a metering surface, wherein the longitudinal axis and a plane tangential to at least a portion of the metering surface define an angle from about 2° to about 90°; and (b) a valve body having an internal chamber defined at least in part by the body wall and includes a metering portion configured to substantially conform to the metering surface of the valve stem.Type: GrantFiled: September 4, 2003Date of Patent: June 26, 2007Assignee: 3M Innovative Properties CompanyInventors: David J. Greenleaf, Peter D. Hodson, Graham R. Purkins, Gary D. Mahon, Heinz G. Klein
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Publication number: 20040139965Abstract: The present invention relates to a novel design for a metering valve that provides improved consistency of formulation delivery. Generally, the metering valve includes (a) a valve stem that generally defines a longitudinal axis and includes a body portion having a metering surface, wherein the longitudinal axis and a plane tangential to at least a portion of the metering surface define an angle from about 2° to about 90°; and (b) a valve body having an internal chamber defined at least in part by the body wall and includes a metering portion configured to substantially conform to the metering surface of the valve stem.Type: ApplicationFiled: September 4, 2003Publication date: July 22, 2004Applicant: 3M Innovative Properties CompanyInventors: David J. Greenleaf, Peter D. Hodson, Graham R. Purkins, Gary D. Mahon, Heinz G. Klein
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Patent number: D687945Type: GrantFiled: April 20, 2011Date of Patent: August 13, 2013Assignee: 3M innovative Properties CompanyInventors: Richard D. Brewer, Craig Davidson, Graham R. Purkins, Stephen J. Howgill
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Patent number: D687946Type: GrantFiled: April 20, 2011Date of Patent: August 13, 2013Assignee: 3M Innovative Properties CompanyInventors: Richard D. Brewer, Craig Davidson, Graham R. Purkins, Stephen J. Howgill
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Patent number: D687947Type: GrantFiled: April 20, 2011Date of Patent: August 13, 2013Assignee: 3M Innovative Properties CompanyInventors: Richard D. Brewer, Craig Davidson, Graham R. Purkins, Stephen J. Howgill