Patents by Inventor David A. MACLEAN
David A. MACLEAN 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: 11971229Abstract: A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.Type: GrantFiled: March 11, 2021Date of Patent: April 30, 2024Assignee: Lummus Technology LLCInventors: Richard Jibb, David Thomas Creech, Randy Lee Eberly, Elizabeth MacLean Meacham, Henk Boekhouder, Roberto Groppi, Vincenzo Marco Brignone, Trevor Jaye
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Publication number: 20240124288Abstract: A portable, self-contained beverage apparatus includes a container assembly having a known storage capacity for storing a consumable liquid, and a dispensing assembly disposed within the container assembly that dispenses variable, non-zero quantities of additives into the consumable liquid. The dispensing assembly includes multiple apertures structured and arranged to retain vessels containing the additives to be dispensed into the consumable liquid. The beverage apparatus also includes a level sensor disposed within the container assembly that determines a consumable liquid level of the consumable liquid stored in the container assembly. In certain embodiments, one or more positive displacement pumping mechanisms are configured to pump additive liquid from additive containers into a beverage chamber.Type: ApplicationFiled: December 22, 2023Publication date: April 18, 2024Applicant: Cirkul, Inc.Inventors: Mark Lyons, Jonathon Perrelli, Robert Lawson-Shanks, Abraham Maclean, Connor Bacon, James Christopher Small, Jesse John Horne, Simon Lewis Bilton, Matthew James Edwards, Andrew Gordon Wallace, Maxim D. Wheatley, David J. Wheatley, Todd Metlen
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Publication number: 20240085126Abstract: A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Richard JIBB, David Thomas CREECH, Randy Lee EBERLY, Elizabeth MacLean MEACHAM, Henk BOEKHOUDER, Roberto GROPPI, Vincenzo Marco BRIGNONE, Trevor JAYE
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Patent number: 11917997Abstract: This invention is related to the use of a volatile antimicrobial compound against pathogens. The volatile antimicrobial compounds provided include certain oxaborole compounds, for example benzoxaboroles. Delivery systems are provided to take advantage of the volatile nature of these antimicrobial compounds. The method and use disclosed can be combined with other volatile compounds.Type: GrantFiled: December 13, 2021Date of Patent: March 5, 2024Assignee: AGROFRESH INC.Inventors: Daniel MacLean, David H. Young, Richard M. Jacobson, Maurice C. Yap, Rodrigo A. Cifuentes, Donald H. DeVries, Joseph D. Eckelbarger
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Publication number: 20230072711Abstract: Apparatus and processes for controlling a reverse osmosis system for water desalination to reduce energy consumption. The system has a controller configured to receive information from the sensor array and determine a fouling parameter for each reverse-osmosis stage based on one or more of: an A-Value, a B-value and a normalized differential pressure. The controller is then configured to control the flow through each of the reverse-osmosis assemblies based on the determined fouling parameters to meet a predetermined criterion for total permeate production for the reverse-osmosis system.Type: ApplicationFiled: June 2, 2021Publication date: March 9, 2023Applicant: SYNAUTA INC.Inventors: Michael Bruce DIXON, Cole David MACLEAN, Nicholas HEROLD, Justin QUAINTANCE
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Publication number: 20180256825Abstract: The present invention safety device is a one-piece needle assembly that has a base and a housing pivotally connected to the base. The base has a distal portion to which a needle is fitted. At the base there is formed longitudinally along its distal portion a catch mechanism that may be in the form of an anchor projection. At the back wall of the housing there is extended another catch mechanism that may be configured in the form of two clasping fingers. Also providing in the housing is an integral hook. As the housing and the base are pivoted relative to each other, and as the needle makes contact with the hook, the respective catch mechanisms at the base and the housing also make contact with each other, resulting in the coupling of the catch mechanisms and the coupling of the needle to the hook. As a result, the catch mechanisms are interlocked and the needle is fixedly retained by the hook within the housing.Type: ApplicationFiled: May 16, 2018Publication date: September 13, 2018Applicant: SMITHS MEDICAL ASD, INC.Inventors: Robert Simas, JR., David MacLean
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Patent number: 10046626Abstract: An apparatus for shedding material accumulated on a surface is disclosed. The apparatus is an elastic expandable vessel with fluid inlet and outlet. The elastic expandable vessel is fixed to the surface in a flat shape. Upon the introduction of fluid into the expandable vessel, the expandable vessel expands into a domed shape so that material accumulated on the surface slides off under the influence of gravity. Upon the egress of fluid out of the expandable vessel, the expandable vessel flattens.Type: GrantFiled: March 24, 2016Date of Patent: August 14, 2018Assignee: ADAGIO INDUSTRIES INC.Inventor: David A. Maclean
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Patent number: 9999735Abstract: The present invention safety device is a one-piece needle assembly that has a base and a housing pivotally connected to the base. The base has a distal portion to which a needle is fitted. At the base there is formed longitudinally along its distal portion a catch mechanism that may be in the form of an anchor projection. At the back wall of the housing there is extended another catch mechanism that may be configured in the form of two clasping fingers. Also providing in the housing is an integral hook. As the housing and the base are pivoted relative to each other, and as the needle makes contact with the hook, the respective catch mechanisms at the base and the housing also make contact with each other, resulting in the coupling of the catch mechanisms and the coupling of the needle to the hook. As a result, the catch mechanisms are interlocked and the needle is fixedly retained by the hook within the housing.Type: GrantFiled: October 17, 2013Date of Patent: June 19, 2018Assignee: SMITHS MEDICAL ASD, INC.Inventors: Robert Simas, Jr., David MacLean
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Publication number: 20160280052Abstract: An apparatus for shedding material accumulated on a surface is disclosed. The apparatus is an elastic expandable vessel with fluid inlet and outlet. The elastic expandable vessel is fixed to the surface in a flat shape. Upon the introduction of fluid into the expandable vessel, the expandable vessel expands into a domed shape so that material accumulated on the surface slides off under the influence of gravity. Upon the egress of fluid out of the expandable vessel, the expandable vessel flattens.Type: ApplicationFiled: March 24, 2016Publication date: September 29, 2016Inventor: David A. MACLEAN
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Publication number: 20140052072Abstract: The present invention safety device is a one-piece needle assembly that has a base and a housing pivotally connected to the base. The base has a distal portion to which a needle is fitted. At the base there is formed longitudinally along its distal portion a catch mechanism that may be in the form of an anchor projection. At the back wall of the housing there is extended another catch mechanism that may be configured in the form of two clasping fingers. Also providing in the housing is an integral hook. As the housing and the base are pivoted relative to each other, and as the needle makes contact with the hook, the respective catch mechanisms at the base and the housing also make contact with each other, resulting in the coupling of the catch mechanisms and the coupling of the needle to the hook. As a result, the catch mechanisms are interlocked and the needle is fixedly retained by the hook within the housing.Type: ApplicationFiled: October 17, 2013Publication date: February 20, 2014Applicant: SMITHS MEDICAL ASD, INC.Inventors: Robert Simas, JR., David MacLean
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Patent number: 8608695Abstract: A safety needle assembly has a collar or ring that is rotatably mounted to a needle hub. The needle assembly may be connected to a syringe by the user grasping the needle hub in first and second embodiments, or turning of the needle sheath in other embodiments. The collar of the needle assembly may be rotated by turning the needle sheath. The needle hub may also interact with the collar by rotating the needle sheath. Mechanisms are provided at both the collar and the housing so that once the contaminated needle is covered, the needle assembly may be removed from the syringe for disposal by rotating the needle housing.Type: GrantFiled: March 6, 2012Date of Patent: December 17, 2013Assignee: Smiths Medical ASD, Inc.Inventors: Marius Hauri, Frank Blinkhorn, David MacLean, Lawrence P. Hudon, Robert Simas, Jr., Troy M. Derby
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Patent number: 8603042Abstract: The present invention safety device is a one-piece needle assembly that has a base and a housing pivotally connected to the base. The base has a distal portion to which a needle is fitted. At the base there is formed longitudinally along its distal portion a catch mechanism that may be in the form of an anchor projection. At the back wall of the housing there is extended another catch mechanism that may be configured in the form of two clasping fingers. Also providing in the housing is an integral hook. As the housing and the base are pivoted relative to each other, and as the needle makes contact with the hook, the respective catch mechanisms at the base and the housing also make contact with each other, resulting in the coupling of the catch mechanisms and the coupling of the needle to the hook. As a result, the catch mechanisms are interlocked and the needle is fixedly retained by the hook within the housing.Type: GrantFiled: August 4, 2011Date of Patent: December 10, 2013Assignee: Smiths Medical ASD, Inc.Inventors: Robert Simas, Jr., David MacLean
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Patent number: 8251961Abstract: A safety needle assembly has a needle hub and a collar. Integrally formed from the proximal portion of the needle hub is a ring that surrounds its luer base. At the distal portion of the needle hub there are coaxially formed circumferential flanges which act to allow the collar to be rotatable about the needle hub. A needle protection housing is connected to the collar and is pivotable to cover the needle that extends from the distal end of the needle hub. Before use, the needle extending from the needle hub is covered by a needle sheath that has a groove formed circumferentially at its proximal end that snap-fits to a circumferential rib formed at the distal end of the collar.Type: GrantFiled: September 22, 2003Date of Patent: August 28, 2012Assignee: Smiths Medical ASD, Inc.Inventors: Marius Hauri, Frank Blinkhorn, David Maclean, Lawrence P. Hudon, Robert Simas, Jr., Troy M. Derby
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Publication number: 20120172810Abstract: A safety needle assembly has a collar or ring that is rotatably mounted to a needle hub. The needle assembly may be connected to a syringe by the user grasping the needle hub in first and second embodiments, or turning of the needle sheath in other embodiments. The collar of the needle assembly may be rotated by turning the needle sheath. The needle hub may also interact with the collar by rotating the needle sheath. Mechanisms are provided at both the collar and the housing so that once the contaminated needle is covered, the needle assembly may be removed from the syringe for disposal by rotating the needle housing.Type: ApplicationFiled: March 6, 2012Publication date: July 5, 2012Applicant: Smiths Medical ASD, Inc.Inventors: Marius Hauri, Frank Blinkhorn, David MacLean, Lawrence P. Hudon, Robert Simas, JR., Troy M. Derby
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Patent number: 8152761Abstract: A safety needle assembly has a collar or ring that is rotatably mounted to a needle hub, which may be connected to a medical device such as a syringe. The needle assembly may be connected to the syringe by the user grasping the needle hub in first and second embodiments, or turning of the needle sheath in other embodiments. In all of the embodiments, the collar of the needle assembly may be rotated by turning the needle sheath, which is designed to interact with the collar. In some of the embodiments, the needle hub likewise interacts with the collar in such a way that by rotating the needle sheath, the needle hub is likewise rotated for connection to a syringe. When an exposed needle is to be covered, after the needle sheath has been removed, a housing connected to the collar is pivotally moved to cover the needle.Type: GrantFiled: April 27, 2004Date of Patent: April 10, 2012Assignee: Smiths Medical ASD, Inc.Inventors: Marius Hauri, Frank Blinkhorn, David MacLean, Lawrence P. Hudon, Robert Simas, Jr., Troy M. Derby
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Publication number: 20110295213Abstract: The present invention safety device is a one-piece needle assembly that has a base and a housing pivotally connected to the base. The base has a distal portion to which a needle is fitted. At the base there is formed longitudinally along its distal portion a catch mechanism that may be in the form of an anchor projection. At the back wall of the housing there is extended another catch mechanism that may be configured in the form of two clasping fingers. Also providing in the housing is an integral hook. As the housing and the base are pivoted relative to each other, and as the needle makes contact with the hook, the respective catch mechanisms at the base and the housing also make contact with each other, resulting in the coupling of the catch mechanisms and the coupling of the needle to the hook. As a result, the catch mechanisms are interlocked and the needle is fixedly retained by the hook within the housing.Type: ApplicationFiled: August 4, 2011Publication date: December 1, 2011Applicant: Smiths Medical ASD, Inc.Inventors: Robert Simas, JR., David MacLean
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Patent number: 8040181Abstract: A system, method and apparatus is provided for pulse width correction in a power driver. In an embodiment, an apparatus includes an operational amplifier having an input and an output. The input of the operational amplifier is coupled to receive an input pulse signal. The apparatus further includes an output stage having an input coupled to the output of the operational amplifier. The output stage also includes a current output configured to couple to a load and to a voltage sense output. The apparatus also includes a comparator having an inverting input coupled to the voltage sense output of the output stage, a non-inverting input configured to couple to an input signal, and an output. Also, the apparatus includes a timing circuit with an input coupled to the output of the comparator and an input coupled to the input signal. The timing circuit also has an output to supply the input pulse signal. The timing circuit measures a delay from a change in the input signal to a change in the output of the comparator.Type: GrantFiled: June 30, 2009Date of Patent: October 18, 2011Assignee: Maxim Integrated Products, Inc.Inventors: William David MacLean, Bruce Carl Larson
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Patent number: 8016796Abstract: The present invention safety device is a one-piece needle assembly that has a base and a housing pivotally connected to the base. The base has a distal portion to which a needle is fitted. At the base there is formed longitudinally along its distal portion a catch mechanism that may be in the form of an anchor projection. At the back wall of the housing there is extended another catch mechanism that may be configured in the form of two clasping fingers. Also providing in the housing is an integral hook. As the housing and the base are pivoted relative to each other, and as the needle makes contact with the hook, the respective catch mechanisms at the base and the housing also make contact with each other, resulting in the coupling of the catch mechanisms and the coupling of the needle to the hook. As a result, the catch mechanisms are interlocked and the needle is fixedly retained by the hook within the housing.Type: GrantFiled: May 27, 2005Date of Patent: September 13, 2011Assignee: Smiths Medical ASD, Inc.Inventors: Robert Simas, Jr., David MacLean
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Patent number: 7992078Abstract: A computer readable storage medium comprises a publication definition module to create and define properties for a publication object. The publication definition module includes executable instructions to associate a set of static documents and a set of report templates with the publication object. Executable instructions define a conditional delivery rule for the publication object. The conditional delivery rule specifies a condition for the inclusion of a report template from the set of report templates to be merged with a static document from the set of static documents.Type: GrantFiled: July 13, 2007Date of Patent: August 2, 2011Assignee: Business Objects Software LtdInventors: Terry Wayne Penner, Francis Wai Gee Lui, Wai Sing Wang, Michael Akio Tsumura, David MacLean
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Publication number: 20100327972Abstract: A system, method and apparatus is provided for pulse width correction in a power driver. In an embodiment, an apparatus includes an operational amplifier having an input and an output. The input of the operational amplifier is coupled to receive an input pulse signal. The apparatus further includes an output stage having an input coupled to the output of the operational amplifier. The output stage also includes a current output configured to couple to a load and to a voltage sense output. The apparatus also includes a comparator having an inverting input coupled to the voltage sense output of the output stage, a non-inverting input configured to couple to an input signal, and an output. Also, the apparatus includes a timing circuit with an input coupled to the output of the comparator and an input coupled to the input signal. The timing circuit also has an output to supply the input pulse signal. The timing circuit measures a delay from a change in the input signal to a change in the output of the comparator.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Inventors: William David MacLean, Bruce Carl Larson