Patents by Inventor Joseph R Walsh

Joseph R Walsh 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: 12279943
    Abstract: An anchor device for attaching suture material to bone includes a body portion having a first end and a second end. The body portion includes a trabecular mesh core that at least partially defines a central bore between the first end and the second end. The trabecular mesh core includes a plurality of openings configured to receive/allow/facilitate bone growth through the trabecular mesh core. The body portion also includes at least one thread extending spirally along an exterior of the trabecular mesh core. The anchor device further includes a post at least partially positioned within the central bore and rotatably coupled to the body portion, wherein the post comprises a fork extending from the second end of the body portion and configured to attach soft tissue to the bone using the suture material. The body portion and the post are additively manufactured from a biocompatible material.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: April 22, 2025
    Assignee: Acumed LLC
    Inventors: Joseph R. Walsh, Tyler Krummenacher
  • Publication number: 20220249220
    Abstract: An anchor device for attaching suture material to bone includes a body portion having a first end and a second end. The body portion includes a trabecular mesh core that at least partially defines a central bore between the first end and the second end. The trabecular mesh core includes a plurality of openings configured to receive/allow/facilitate bone growth through the trabecular mesh core. The body portion also includes at least one thread extending spirally along an exterior of the trabecular mesh core. The anchor device further includes a post at least partially positioned within the central bore and rotatably coupled to the body portion, wherein the post comprises a fork extending from the second end of the body portion and configured to attach soft tissue to the bone using the suture material. The body portion and the post are additively manufactured from a biocompatible material.
    Type: Application
    Filed: July 9, 2020
    Publication date: August 11, 2022
    Inventors: Joseph R. Walsh, Tyler Krummenacher
  • Patent number: 7720594
    Abstract: A fuel injector control method comprises determining a required separation time between a termination of an on signal associated with a first injection event and an initiation of an on signal associated with a second injection event. The method comprises calculating an overlap time between the separation time and the time to charge the piezoelectric stack to a first level; dividing the overlap time into first and second time periods as a function of the charge and discharge currents; applying the charge current to the piezoelectric stack for a charge time; and applying the discharge current to the piezoelectric stack for a discharge time so as to discharge the stack to a second level, wherein the discharge time is calculated on the basis of the second time period of the overlap time. Thus, first and second injection events are merged in a pulse mode of operation.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: May 18, 2010
    Assignee: Delphi Technologies, Inc.
    Inventors: Joseph R. Walsh, Martin A. P. Sykes, Peter G. Griffin
  • Publication number: 20090234558
    Abstract: A fuel injector control method comprises determining a required separation time between a termination of an on signal associated with a first injection event and an initiation of an on signal associated with a second injection event. The method comprises calculating an overlap time between the separation time and the time to charge the piezoelectric stack to a first level; dividing the overlap time into first and second time periods as a function of the charge and discharge currents; applying the charge current to the piezoelectric stack for a charge time; and applying the discharge current to the piezoelectric stack for a discharge time so as to discharge the stack to a second level, wherein the discharge time is calculated on the basis of the second time period of the overlap time. Thus, first and second injection events are merged in a pulse mode of operation.
    Type: Application
    Filed: April 12, 2007
    Publication date: September 17, 2009
    Applicant: DELPHI TECHNOLOGOES, INC.
    Inventors: Joseph R. Walsh, Martin A.P. Sykes, Peter G. Griffin
  • Patent number: 7401596
    Abstract: The invention relates to a method of estimating the temperature of a piezoelectric actuator body for controlling the operation of a fuel injector mounted within an engine housing and supplied with fuel from a high pressure fuel pump. The piezoelectric actuator body is housed within a volume of fuel. The method comprises determining a temperature (T—INJ IN, T—PUMP IN) of fuel upstream of the fuel volume, determining a temperature (T—CYL) of the engine housing, and estimating a temperature (T—STACK STEADY STATE; T—STACK DYNAMIC) of the piezoelectric actuator body based on the upstream temperature (T—INJ IN, T—PUMP IN) and the temperature (T—CYL) of the engine housing. By considering the heat transfer between the piezoelectric actuator body, the injector and fuel within the volume, and the heat transfer due to fuel flow through the volume for an injection, the temperature of the piezoelectric actuator body can be estimated by modelling or mapping.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: July 22, 2008
    Assignee: Delphi Technologies, Inc.
    Inventors: Martin A. P. Sykes, Joseph R Walsh, Daniel J. Hopley
  • Publication number: 20070170814
    Abstract: The invention relates to a method of estimating the temperature of a piezoelectric actuator body for controlling the operation of a fuel injector mounted within an engine housing and supplied with fuel from a high pressure fuel pump. The piezoelectric actuator body is housed within a volume of fuel. The method comprises determining a temperature (T—INJ IN, T—PUMP IN) of fuel upstream of the fuel volume, determining a temperature (T—CYL) of the engine housing, and estimating a temperature (T—STACK STEADY STATE; T—STACK DYNAMIC) of the piezoelectric actuator body based on the upstream temperature (T—INJ IN, T—PUMP IN) and the temperature (T—CYL) of the engine housing. By considering the heat transfer between the piezoelectric actuator body, the injector and fuel within the volume, and the heat transfer due to fuel flow through the volume for an injection, the temperature of the piezoelectric actuator body can be estimated by modelling or mapping.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 26, 2007
    Inventors: Martin A. P. Sykes, Joseph R. Walsh, Daniel J. Hopley