Patents by Inventor Jeffrey A. Perkins

Jeffrey A. Perkins 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: 8767214
    Abstract: Apparatus for detecting powder flow along a powder flow path includes a light source and a light detector for detecting light from the light source directed across the powder flow path as powder flows through said powder flow path. A circuit receives the output from the light detector and determines an average or RMS of the signal received by the light detector. The circuit may determine whether there is flow or no flow of powder or whether there is a change in flow rate of powder. Preferably, the apparatus is used in combination with a dense phase powder pump, which causes the powder to flow in pulses from the pump outlet into the powder flow path. More preferably, the light source and detector are enclosed in a housing that is connected between the pump outlet and a powder feed hose which supplies powder to a spray gun or hopper.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: July 1, 2014
    Assignee: Nordson Corporation
    Inventors: Mario Romanin, James M. Khoury, Joseph G. Schroeder, Jeffrey A. Perkins, Terrence M. Fulkerson
  • Publication number: 20140094704
    Abstract: A blood pressure cuff is defined by a first sheet, having an opening, and a second sheet. The second sheet is attached to a bottom of the first sheet to form an interior inflatable portion between the first sheet and the second sheet, with the opening of the first sheet fluidly interconnecting the interior inflatable portion with an exterior of the cuff. The blood pressure cuff is made from a single type of material and can be recycled, biodegradable, or composted.
    Type: Application
    Filed: December 3, 2013
    Publication date: April 3, 2014
    Applicant: Welch Allyn, Inc.
    Inventors: Robert L. Vivenzio, Ian K. Edwards, Raymond A. Lia, Jeffrey Perkins, Sean R. Karla
  • Patent number: 8652057
    Abstract: A blood pressure cuff is defined by a first sheet, having an opening, and a second sheet. The second sheet is attached to a bottom of the first sheet to form an interior inflatable portion between the first sheet and the second sheet, with the opening of the first sheet fluidly interconnecting the interior inflatable portion with an exterior of the cuff. The blood pressure cuff is made from a single type of material and can be recycled, biodegradable, or composted.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: February 18, 2014
    Assignee: Welch Allyn, Inc.
    Inventors: Robert L. Vivenzio, Ian K. Edwards, Raymond A. Lia, Jeffrey Perkins, Sean R. Karla
  • Publication number: 20140042238
    Abstract: Control method and apparatus for a manual spray gun may include a second manually actuated trigger disposed on the spray gun handle, with the second trigger being operational to select one or more coating operation parameters.
    Type: Application
    Filed: October 14, 2013
    Publication date: February 13, 2014
    Applicant: Nordson Corporation
    Inventors: Brian Mather, Jeffrey A. Perkins
  • Patent number: 8584973
    Abstract: Control method and apparatus for a manual spray gun may include a second manually actuated trigger disposed on the spray gun handle, with the second trigger being operational to select or change one or more coating operation parameters.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 19, 2013
    Assignee: Nordson Corporation
    Inventors: Brian Mather, Jeffrey A. Perkins
  • Publication number: 20130294848
    Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.
    Type: Application
    Filed: June 25, 2013
    Publication date: November 7, 2013
    Inventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
  • Publication number: 20130245439
    Abstract: A medical fluid injector system (450) is disclosed that may utilize one or more of flow rate determination logic (130), injection volume determination logic (132), display control logic (134), drive ram motion control logic (136), and pressure monitoring logic (138). The flow rate determination logic (130), injection volume determination logic (132), and display control logic (134) each may utilize a concentration input (172, 192, 202) to calculate flow rates, injection volumes, and generate multi-color graphics, respectively, for a simultaneous injection configuration. The drive ram motion control logic (136) may utilize both a target pressure and a monitored pressure to derive a velocity for advancing a drive ram. The pressure monitoring logic (138) may provide a monitored pressure value for the drive ram control logic (136), where this monitored pressure value may be derived from the input power being used to advance a drive ram and the drive ram velocity.
    Type: Application
    Filed: November 21, 2011
    Publication date: September 19, 2013
    Inventors: James R. Small, Jeffrey A. Perkins, Frank M. Fago, Mark Jon Glenn
  • Patent number: 8491227
    Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: July 23, 2013
    Assignee: Nordson Corporation
    Inventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
  • Patent number: 8317099
    Abstract: The present invention relates to management of information relating to medical fluids, containers therefore, and medical fluid administration devices for administering such medical fluids to patients. Data tags (e.g., RFID tags) are generally associated with containers of the invention and may be electromagnetically read from and/or written to using an electromagnetic device, for example, that may be associated with a medical fluid administration device of the invention.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: November 27, 2012
    Assignee: Mallinckrodt LLC
    Inventors: Jeffrey A. Perkins, James R. Small
  • Publication number: 20120209437
    Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 16, 2012
    Applicant: NORDSON CORPORATION
    Inventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
  • Patent number: 8167517
    Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: May 1, 2012
    Assignee: Nordson Corporation
    Inventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
  • Publication number: 20120009329
    Abstract: Control method and apparatus for a manual spray gun includes display that is disposed on the spray gun and that provides information to an operator about one or more coating operation parameters. An auxiliary trigger may be used that enables an operator to makes selections of one or more coating operation parameters. The display and auxiliary trigger together permit an operator to make selections without having to divert attention or field of view away from the spray gun or the coating area, especially during a coating operation.
    Type: Application
    Filed: September 20, 2011
    Publication date: January 12, 2012
    Applicant: Nordson Corporation
    Inventors: Brian Mather, Jeffrey A. Perkins
  • Patent number: 8037844
    Abstract: Control method and apparatus for a manual spray gun includes display that is disposed on the spray gun and that provides information to an operator about one or more coating operation parameters. An auxiliary trigger may be used that enables an operator to make selections or changes of one or more coating operation parameters. The display and auxiliary trigger together permit an operator to make selections or changes without having to divert attention or field of view away from the spray gun or the coating area, especially during a coating operation. The display may include numeric information, for example, data relating to a coating function being displayed.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 18, 2011
    Assignee: Nordson Corporation
    Inventors: Brian Mather, Jeffrey A. Perkins
  • Publication number: 20110160580
    Abstract: A power injector (40) includes a movable ram (74) operable to interface with and move a plunger (90a/b) of a syringe (86a/b). The power injector (40) may be operable to automatically determine a proper home position for the particular type of syringe (86a/b) to be used in a fluid injection sequence. The power injector (40) may also include ram homing logic (182) operable to automatically move the ram (74) to a home position after an injection. Such automatic homing of the ram (74) may, for example, be initiated by the end of an injection sequence in preparation for another injection sequence, by the opening of a faceplate (102a/b), by a user input, or by any combination thereof.
    Type: Application
    Filed: August 7, 2009
    Publication date: June 30, 2011
    Inventors: Jeffrey A. Perkins, Mike W. Mclean, Victor D. Potter, Frank M. Fago
  • Publication number: 20100298725
    Abstract: A blood pressure cuff is defined by a first sheet, having an opening, and a second sheet. The second sheet is attached to a bottom of the first sheet to form an interior inflatable portion between the first sheet and the second sheet, with the opening of the first sheet fluidly interconnecting the interior inflatable portion with an exterior of the cuff. The blood pressure cuff is made from a single type of material and can be recycled, biodegradable, or composted.
    Type: Application
    Filed: February 12, 2010
    Publication date: November 25, 2010
    Inventors: Robert L. Vivenzio, Ian K. Edwards, Raymond A. Lia, Jeffrey Perkins, Sean R. Karla
  • Publication number: 20100298724
    Abstract: A blood pressure cuff is defined by a sleeve member, a portion of which is inflatable and made from a fluid impermeable material. An exterior port of the sleeve directly and fluidly interconnects with the interior of said inflatable portion, wherein a slotted portion is aligned with the port to receive the port when the cuff is wrapped about the limb of a patient. The slotted portion is sized to provide a range of cuff sizes wherein the cuff can be entirely made from a biodegradable or recyclable material. A plurality of cuffs can be packaged for sequential dispensing thereof.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 25, 2010
    Applicant: Welch Allyn, Inc.
    Inventors: Robert L. Vivenzio, Ian K. Edwards, Raymond A. Lia, Jeffrey Perkins, Sean Karla
  • Publication number: 20100221125
    Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.
    Type: Application
    Filed: May 6, 2010
    Publication date: September 2, 2010
    Applicant: NORDSON CORPORATION
    Inventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
  • Patent number: 7731456
    Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: June 8, 2010
    Assignee: Nordson Corporation
    Inventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
  • Publication number: 20090110803
    Abstract: Control method and apparatus for a manual spray gun includes display that is disposed on the spray gun and that provides information to an operator about one or more coating operation parameters. An auxiliary trigger may be used that enables an operator to make selections or changes of one or more coating operation parameters. The display and auxiliary trigger together permit an operator to make selections or changes without having to divert attention or field of view away from the spray gun or the coating area, especially during a coating operation. The display may include numeric information, for example, data relating to a coating function being displayed.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Applicant: Nordson Corporation
    Inventors: Brian Mather, Jeffrey A. Perkins
  • Publication number: 20090110839
    Abstract: Control method and apparatus for a manual spray gun may include a second manually actuated trigger disposed on the spray gun handle, with the second trigger being operational to select or change one or more coating operation parameters.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Applicant: Nordson Corporation
    Inventors: Brian Mather, Jeffrey A. Perkins