Patents by Inventor David L. Davies

David L. Davies 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: 8353864
    Abstract: Disclosed is a low cost, disposable, infusion pump. The infusion pump can include an integrated occlusion detector that detects both upstream and downstream occlusions in an infusion tube. In addition, the infusion pump can easily monitor flow rates through the infusion tube, and be quickly set to infuse at a pre-determined rate. An armature within the infusion pump works in concert with a pair of tubing pinchers to precisely control the movement of fluid within the tubing. Sensors mounted within the device detect the position of the armature and can determine if an occlusion has occurred in the tubing.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: January 15, 2013
    Inventor: David L. Davis
  • Patent number: 8280768
    Abstract: A method and system for point of sale consumer packaged goods and lottery promotions. A discount coupon is generated having two barcodes. The first barcode encodes standard UPC barcode data including, e.g., manufacturer ID, retail product or a retail product family, and discount value code. The second barcode encodes a FreePlay identifier code. A POS system scans the barcodes and the FreePlay identifier code is recognized. Based on this, the consumer is offered a choice of a Lottery FreePlay coupon in lieu of the discount on the retail product. When the consumer accepts the choice of a Lottery FreePlay coupon, a Lottery FreePlay coupon is printed for the consumer in lieu of giving the consumer a discount on the retail product. The Lottery FreePlay coupon is redeemable at an authorized lottery booth for a lottery ticket having a purchase price based on the discount value code.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: October 2, 2012
    Inventor: David L. Davis
  • Publication number: 20120216704
    Abstract: A power module enclosure for a machine is disclosed. The power module enclosure may have a first frame with a first side removably attached to a base platform of the machine at an engine location, a second side removable attached to the base platform opposite the first side, and a third side disposed between and fixedly connected to the first and second sides along a length direction of the first and second sides. The power module enclosure may also have a plurality of doors pivotally connected to at least one of the first and second sides to close off the at least one of the first and second sides, and an aftertreatment module connected to the third side to close off the third side.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Inventors: Geary W. Smith, JR., Csaba A. Bernad, David L. Davis
  • Patent number: 8197235
    Abstract: Described herein is an infusion pump with an integrated permanent magnet. The permanent magnet is positioned to provide an attractive force that moves an armature to compress a fluid-filled infusion tube. An electromagnet can be activated to overcome the attractive force of the permanent magnet and move the armature away from the infusion tubing. The force required to overcome the permanent magnet is much less than the force required to compress the tubing. For this reason the infusion pump has very low power consumption since much of the pumping work is provided by the permanent magnet.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: June 12, 2012
    Inventor: David L. Davis
  • Publication number: 20100209267
    Abstract: Described herein is an infusion pump with an integrated permanent magnet. The permanent magnet is positioned to provide an attractive force that moves an armature to compress a fluid-filled infusion tube. An electromagnet can be activated to overcome the attractive force of the permanent magnet and move the armature away from the infusion tubing. The force required to overcome the permanent magnet is much less than the force required to compress the tubing. For this reason the infusion pump has very low power consumption since much of the pumping work is provided by the permanent magnet.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Inventor: David L. Davis
  • Publication number: 20100209268
    Abstract: Disclosed is a low cost, disposable, infusion pump. The infusion pump can include an integrated occlusion detector that detects both upstream and downstream occlusions in an infusion tube. In addition, the infusion pump can easily monitor flow rates through the infusion tube, and be quickly set to infuse at a pre-determined rate. An armature within the infusion pump works in concert with a pair of tubing pinchers to precisely control the movement of fluid within the tubing. Sensors mounted within the device detect the position of the armature and can determine if an occlusion has occurred in the tubing.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Inventor: David L. Davis
  • Publication number: 20100211002
    Abstract: An apparatus for pumping fluid through a flexible tubing is provided. The apparatus uses an electromagnet to activate upstream and downstream pinchers to control fluid flow. An armature is configured to compress the tubing, and in combination with the pinchers creates a fluid flow in the flexible tubing. Downstream occlusions in the tubing can be detected by monitoring for conditions wherein the armature does not close fully. Upstream occlusions in the tubing can be detected by monitoring for conditions wherein the armature does not open fully. A control module can be incorporated into the device for controlling the movement of the components and monitoring for occlusion conditions.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Inventor: David L. Davis
  • Publication number: 20090292600
    Abstract: A method and system for point of sale consumer packaged goods and lottery promotions. A discount coupon is generated having two barcodes. The first barcode encodes standard UPC barcode data including, e.g., manufacturer ID, retail product or a retail product family, and discount value code. The second barcode encodes a FreePlay identifier code. A POS system scans the barcodes and the FreePlay identifier code is recognized. Based on this, the consumer is offered a choice of a Lottery FreePlay coupon in lieu of the discount on the retail product. When the consumer accepts the choice of a Lottery FreePlay coupon, a Lottery FreePlay coupon is printed for the consumer in lieu of giving the consumer a discount on the retail product. The Lottery FreePlay coupon is redeemable at an authorized lottery booth for a lottery ticket having a purchase price based on the discount value code.
    Type: Application
    Filed: January 21, 2009
    Publication date: November 26, 2009
    Inventor: David L. Davis
  • Publication number: 20070163767
    Abstract: A fin collar having a shape that enhances flux application and brazing clad flow into the tube to fin joint to provide an improved thermal and structural bond.
    Type: Application
    Filed: February 6, 2007
    Publication date: July 19, 2007
    Inventors: Paul L. Mitchell, Michael E. Heidenreich, Roger A. Loomis, James R. Harris, David L. Davis, David E. Lollar
  • Patent number: 7196221
    Abstract: Ionic compounds having a freezing point of no more than 50° C., formed by the reaction of at least one amine salt of the formula R1R2R3R4N+X? (I) with at least one hydrated salt, which is a chloride, nitrate, sulphate or acetate of Li, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb, Bi, La or Ce; wherein R1, R2 and R3 are each independently a C1 to C5 alkyl or a C6 to C10 cycloalkyl group, or wherein R2 and R3 taken together represent a C4 to C10 alkylene group, thereby forming with the N atom of formula (I) a 5 to 11 membered heterocyclic ring, and wherein R4 is hydrogen, or phenyl, or C1 to C12 alkyl or cycloalkyl group, optionally substituted with at least one group selected from OH, Cl, Br, F, I, phenyl, NH2, CN, NO2, COOR5, CHO, COR5 and OR5, wherein R5 is a C1 to C10 alkyl or cycloalkyl group, and X? is an anion capable of being complexed by the said hydrated salt.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: March 27, 2007
    Assignee: Scionix Limited
    Inventors: Andrew P. Abbott, David L. Davies, Glen Capper, Raymond K. Rasheed, Vasuki Tambyrajah
  • Patent number: 7183433
    Abstract: Ionic compounds with a freezing point of up to 100° C. are formed by the reaction of an one amine salt of formula (I) R1R2R3R4N+X?, such as choline chloride with an organic compound (II) capable of forming a hydrogen bond with X; such as urea, wherein the molar ration of I to II is from 1:1.5 to 1:2.5. R1, R2, R3 and R4 may be H, optionally substituted C1 to C5 alkyl, optionally substituted C6 to C10 cycloalkyl, optionally substituted C6 to C12 aryl, optionally substituted C7 to C12 alkaryl, or R1 and R2 taken together may represent a C4 to C10 optionally substituted alkylene group, thereby forming with the N atom of formula I a 5 to 11-membered heterocyclic ring and all of R1, R2, R3 and R4 are not identical, X? may be NO3?, F, Cl?, Br?, I?, BF4?, ClO4?, CN?, SO3CF3?, or COOCF3?. The ionic compounds are useful as solvents, and electrolytes for example in electroplating, electrowinning, and electropolishing, and as catalysts.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: February 27, 2007
    Assignee: Scionix Limited
    Inventors: Andrew P. Abbott, David L. Davies, Glen Capper, Raymond K. Rasheed, Vasuki Tambyrajah
  • Publication number: 20040097755
    Abstract: Ionic compounds with a freezing point of up to 100° C. are formed by the reaction of an one amine salt of formula (I) R1R2R3R4N+X−, such as choline chloride with an organic compound (II) capable of forming a hydrogen bond with X; such as urea, wherein the molar ration of I to II is from 1:1.5 to 1:2.5. R1, R2, R3 and R4 may be H, optionally substituted C1 to C5 alkyl, optionally substituted C6 to C10 cycloalkyl, optionally substituted C6 to C12 aryl, optionally substituted C7 to C12 alkaryl, or R1 and R2 taken together may represent a C4 to C10 optionally substituted alkylene group, thereby forming with the N atom of formula I a 5 to 11-membered heterocyclic ring and all of R1, R2, R3 and R4 are not identical, X− may be NO3−, F, Cl−, Br−, I−, BF4−, ClO4−, CN−, SO3CF3−, or COOCF3−. The ionic compounds are useful as solvents, and electrolytes for example in electroplating, electrowinning, and electropolishing, and as catalysts.
    Type: Application
    Filed: July 7, 2003
    Publication date: May 20, 2004
    Inventors: Andrew P. Abbott, David L. Davies, Glen Capper, Raymond K. Rasheed, Vasuki Tambyrajah
  • Publication number: 20040054231
    Abstract: Ionic compounds having a freezing point of no more than 50° C., formed by the reaction of at least one amine salt of the formula R1R2R3R4N+X− (I) with at least one hydrated salt, which is a chloride, nitrate, sulphate or acetate of Li, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb, Bi, La or Ce; wherein R1, R2 and R3 are each independently a C1 to C5 alkyl or a C6 to C10 cycloalkyl group, or wherein R2 and R3 taken together represent a C4 to C10 alkylene group, thereby forming with the N atom of formula (I) a 5 to 11 membered heterocyclic ring, and wherein R4 is hydrogen, or phenyl, or C1 to C12 alkyl or cycloalkyl group, optionally substituted with at least one group selected from OH, Cl, Br, F, I, phenyl, NH2, CN, NO2, COOR5, CHO, COR5 and OR5, wherein R5 is a C1 to C10 alkyl or cycloalkyl group, and X− is an anion capable of being complexed by the said hydrated salt.
    Type: Application
    Filed: August 11, 2003
    Publication date: March 18, 2004
    Inventors: Andrew Abbott, David L Davies, Glen Capper, Raymond K Rasheed, Vasuki Tambyrajah
  • Patent number: 6573405
    Abstract: An ionic liquid having a melting point of no more than 60° C., formed by the reaction of a quaternary ammonium compound of the formula: R1R2R3R4N+X−  (I) or a mixture of two or more therof; with a halide of zinc, tin or iron, or a mixture of two or more thereof.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: June 3, 2003
    Assignee: Scionix Limited
    Inventors: Andrew P. Abbott, David L. Davies
  • Patent number: 6146109
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam assembly is configured to provide fluid delivery at a consistent and uniform rate. The device may also incude a pressure sensing pin positioned on the cam assembly which contacts the tubing during the pumping cycle.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: November 14, 2000
    Assignee: Alaris Medical Systems, Inc.
    Inventors: David L. Davis, Richard F. Hatch, David A. Poirier
  • Patent number: 6110153
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displace in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The device also includes an optical occlusion sensor which is synchronized to operate in phase with the movement of the cam followers to measure pressure within the delivery tube at one pump phase, thereby sensing downstream occlusions, and to measure vacuum within the delivery tube at a second pump phase, thereby sensing upstream occlusions. The occlusion sensor is optical, and measures the degree of total internal reflection at the interface of the tube and the plate assembly, occlusion in the tubing.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: August 29, 2000
    Assignee: ALARIS Medical Systems, Inc.
    Inventors: David L. Davis, Robert E. Brasier, Richard F. Hatch
  • Patent number: 5961487
    Abstract: A small, portable infusion device for ambulatory use by a patient includes an audible enunciator integrated circuit chip. This chip is controlled by a microprocessor to provide output data to an operator, and to work in place of, or in association with a visual output display, such as an LCD screen. The audible data output permits a remote clinician to monitor operation of the pump, and diagnose and correct problems with the pump's operation.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: October 5, 1999
    Assignee: Alaris Medical Systems, Inc.
    Inventor: David L. Davis
  • Patent number: 5853386
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The device also includes an optical occlusion sensor which is synchronized to operate in phase with the movement of the cam followers to measure pressure within the delivery tube at one pump phase, thereby sensing downstream occlusions, and to measure vacuum within the delivery tube at a second pump phase, thereby sensing upstream occlusions. The occlusion sensor is optical, and measures the degree of total internal reflection at the interface of the tube and the plate assembly. occlusion in the tubing.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: December 29, 1998
    Assignee: ALARIS Medical Systems, Inc.
    Inventors: David L. Davis, Robert E. Brasier, Richard F. Hatch
  • Patent number: D420881
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: February 22, 2000
    Assignee: Emerson Electric Co.
    Inventors: David L. Davis, Joseph T. Gierer, Kiyo Hoshino, David L. Pringle
  • Patent number: D748743
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: February 2, 2016
    Inventor: David L. Davis