Patents by Inventor Joseph Duffy

Joseph Duffy 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).

  • Publication number: 20070213853
    Abstract: An apparatus, system and process is provided for communicating safety-related data, over an open system, from a sender to a receiver. Safety-related components, including function blocks, flexible function blocks, resource blocks and transducer blocks, as well as, safety-related objects are provided. Also, an extended safety-related protocol provides for authenticating communications between safety-related components over an existing black channel, such as one using a fieldbus Architecture.
    Type: Application
    Filed: January 22, 2007
    Publication date: September 13, 2007
    Applicant: Fieldbus Foundation
    Inventors: David Glanzer, Joseph Duffy, Stephen Mitschke, Ram Ramachandran, John Carl Gabler, L. Jonas Berge
  • Publication number: 20070201512
    Abstract: A system and method providing for interoperability of SIP and H.323 for SRTP session establishment includes providing for interoperability of Session Initiation Protocol (SIP) and H.323 for Secure Realtime Transport Protocol session establishment include receiving a transmit key in a first protocol from a first endpoint. The transmit key is mapped from the first protocol to a second protocol and sent in the second protocol to a second endpoint to establish a secure communication session between the first endpoint and the second endpoint.
    Type: Application
    Filed: February 27, 2006
    Publication date: August 30, 2007
    Inventors: David Mills, Joseph Duffy, Henry Fourie
  • Publication number: 20070142939
    Abstract: An apparatus, system and process is provided for communicating safety-related data, over an open system, from a sender to a receiver. Safety-related components, including function blocks, flexible function blocks, resource blocks and transducer blocks, as well as, safety-related objects are provided. Also, a time synchronization monitor is provided for monitoring timing distributions and determining when such distributions have drifted beyond an acceptable limit.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 21, 2007
    Applicant: Fieldbus Foundation
    Inventors: Joseph Duffy, Ram Ramachandran, John Gabler
  • Publication number: 20060111336
    Abstract: The present invention is directed to phenylalanine derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: November 26, 2003
    Publication date: May 25, 2006
    Inventors: Joseph Duffy, Robert Mathvink, Ann Weber, Jinyou Xu
  • Publication number: 20060074087
    Abstract: The present invention is directed to 3-amino-4-phenylbutanoic acid derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: January 27, 2004
    Publication date: April 6, 2006
    Inventors: Wallace Ashton, Charles Caldwell, Joseph Duffy, Robert Mathvink, Liping Wang, Ann Weber
  • Publication number: 20060052382
    Abstract: The present invention is directed to 3-amino-4-phenylbutanoic acid derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: December 16, 2003
    Publication date: March 9, 2006
    Inventors: Joseph Duffy, Scott Edmondson, Dooseop Kim, Brian Kirk, Liping Wang, Ann Weber
  • Publication number: 20060035958
    Abstract: The present invention addresses the use of substituted thiophene derivatives, as well as compositions containing such compounds for treating type 2 diabetes mellitus. The compounds in the present invention are glucagon antagonists. The compounds block the action of glucagon at its receptor and thereby decrease the levels of plasma glucose providing a treatment of diabetes.
    Type: Application
    Filed: September 8, 2003
    Publication date: February 16, 2006
    Inventors: Joseph Duffy, Elizabeth Campbell, Sajjad Qureshi, Bei Zhang, James Tata, Zenon Konteatis, Rui Liang
  • Publication number: 20060025872
    Abstract: An apparatus, system and process is provided for communicating safety-related data, over an open system, from a sender to a receiver. Safety-related components, including function blocks, flexible function blocks, resource blocks and transducer blocks, as well as, safety-related objects are provided. Also, an extended safety-related protocol provides for authenticating communications between safety-related components over an existing black channel, such as one using a fieldbus Architecture.
    Type: Application
    Filed: September 30, 2005
    Publication date: February 2, 2006
    Inventors: David Glanzer, Joseph Duffy, Stephen Mitschke, Ram Ramachandran, John Gabler, L. Berge
  • Patent number: 6984049
    Abstract: An improved structure and method for building large-aperture lightweight deformable mirrors uses a hinged substrate. In addition to reduced weight, the approach provides rigidity to the mirror, which is necessary for the accurate response to actuator commands and tolerance to disturbances. No stresses are induced in the substrate due to the commanded deformation of the substrate, regardless of the magnitude of the deformation. Any stresses in the substrate structure are those induced due to forces in the face sheet, which are likely to be small using advanced nano-laminate and membrane face sheet technologies. The magnitude of the deformation (dynamic range) is limited only by the actuator stroke, and not by the stresses induced in the substrate. The design therefore accommodates small-force, large-stroke actuators, as opposed to the current designs that use large-force, small-stroke actuators.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: January 10, 2006
    Assignee: General Dynamics Advanced Information Systems, Inc.
    Inventors: Sarma Gullapalli, Carl Crane, Neil White, Harvey Lipkin, Anne Duffy, legal representative, Joseph Duffy, deceased
  • Publication number: 20050239865
    Abstract: The present invention addresses substituted thiophene derivatives, as well as compositions containing such compounds and methods of treatment. The compounds in the present invention are glucagon antagonists. The compounds block the action of glucagon at its receptor and thereby decrease the levels of plasma glucose providing a treatment of diabetes.
    Type: Application
    Filed: September 8, 2003
    Publication date: October 27, 2005
    Inventors: Joseph Duffy, Elizabeth Campbell, Rui Liang, Zenon Konteatis
  • Publication number: 20050107390
    Abstract: The present invention is directed to compounds which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: March 21, 2003
    Publication date: May 19, 2005
    Inventors: Linda Brockunier, Joseph Duffy, Dooseop Kim, Emma Parmee, Ann Weber
  • Publication number: 20040085657
    Abstract: An improved structure and method for building large-aperture lightweight deformable mirrors uses a hinged substrate. In addition to reduced weight, the approach provides rigidity to the mirror, which is necessary for the accurate response to actuator commands and tolerance to disturbances. No stresses are induced in the substrate due to the commanded deformation of the substrate, regardless of the magnitude of the deformation. Any stresses in the substrate structure are those induced due to forces in the face sheet, which are likely to be small using advanced nano-laminate and membrane face sheet technologies. The magnitude of the deformation (dynamic range) is limited only by the actuator stroke, and not by the stresses induced in the substrate. The design therefore accommodates small-force, large-stroke actuators, as opposed to the current designs that use large-force, small-stroke actuators.
    Type: Application
    Filed: November 4, 2002
    Publication date: May 6, 2004
    Inventors: Sarma Gullapalli, Carl Crane, Neil White, Harvey Lipkin, Joseph Duffy, Anne Duffy
  • Patent number: 6518519
    Abstract: Methods and apparatuses for determining a mass of a payload in a work machine. The work machine has a chassis, a cab coupled with the chassis, and a boom coupled with the cab. A first actuator is coupled with the boom and the cab and moves the boom relative to the cab. The work machine has a stick coupled with the boom, and a second actuator coupled with the stick and the boom that moves the stick relative to the boom. The work machine also has a bucket operable to receive the payload. The bucket is coupled with the stick, and a third actuator is coupled with the bucket and the stick and moves the bucket relative to the stick. A first joint angle of the boom relative to the cab is determined at at least two instances in time. A second joint angle of the stick relative to the boom is determined at at least two instances in time. A third joint angle of the bucket relative to the stick is determined at at least two instances in time.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: February 11, 2003
    Assignee: Caterpillar Inc
    Inventors: Carl D. Crane, III, Joseph Duffy
  • Patent number: 6441801
    Abstract: A screw motion-driven tensegrity antenna support architecture is configured to stably deploy and adjustably control an energy-focusing surface, such as an RF wave-reflecting conductive mesh. A parallel platform structure is configured of an upper hexagonal platform and a lower hexagonal base, the perimeter geometry of each of which is defined by plural interconnected tensioned ties. Vertices of the hexagonal tie base and the hexagonal upper tie platform are interconnected by pairs of legs, each including a compression strut and a tension tie. The stability of the structure requires that the sum of the tie tension forces matches the sum of the compression forces in the struts. To control deployment from a stowed condition and the geometric parameters of the deployed RF reflecting surface, a screw motion-based drive system is coupled to the struts to define relative mutual rotation and pitch between the upper platform and lower base.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: August 27, 2002
    Assignee: Harris Corporation
    Inventors: Byron F. Knight, Joseph Duffy, Carl David Crane, III, Joseph Rooney
  • Patent number: 5699221
    Abstract: A support bracket for connecting an auxiliary electrical unit to an in situ unit, comprising a mounting means for locating between the in situ unit and an outlet box (hereinafter referred to as a patress box) or a wall to which the in situ unit is originally mounted, and for mounting the in situ unit to the patress box or wall. A support means extends from the mounting means for supporting the auxiliary unit. A cable accommodating means is provided for accommodating a cable from the patress box or wall through the support bracket to the in situ unit. One of the cable accommodating means and the mounting means is adapted to permit location of the mounting means between the in situ unit and the patress box or wall, and for permitting mounting of the in situ unit on the mounting means without disconnection of the cable from the in situ unit. A communicating means is provided for accommodating an electrical wire from the in situ unit to the auxiliary unit.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: December 16, 1997
    Assignee: Paralight Limited
    Inventors: Gerald Timothy O'Leary, Patrick Joseph Duffy, Oliver St. Clair Hood
  • Patent number: 5179525
    Abstract: A system, method and apparatus for controlling, via a closed-form forward displacement computation, the position and orientation of a movable platform of a parallel mechanism. A movable platform is supported above a base platform by a plurality of parallel support legs such as linear actuators. The dimensions of the base platform and the movable platform, as well the lengths of the support legs, are provided to a control system. The control system is operative to compute at least one closed-form forward displacement solution of the geometry of a polyhedron (an octahedron for the disclosed embodiments) formed by the movable platform, the base platform, and the support legs. The control system determines a final position and orientation of the movable platform by eliminating imaginary roots of the closed-form solutions and roots which would result in discontinuous paths of travel for the movable platform. A novel special 6-6 parallel mechanism is also disclosed.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: January 12, 1993
    Assignee: University of Florida
    Inventors: Michael W. Griffis, Joseph Duffy
  • Patent number: 4120993
    Abstract: The improved method of making a self-locking threaded element having a strongly adhered plastic body on its threaded surface providing strong frictional engagement between the element and a mating threaded surface in which fine particles of heat softenable plastic are applied against a heated threaded surface in a plurality of spaced successive portions in time and temperature controlled relation such that a first portion is softened by heat prior to application of a successive portion of the particles to aid in holding particles of successive portions to enable manufacture at a higher rate and/or at lower temperatures than heretofore practicable.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: October 17, 1978
    Assignee: USM Corporation
    Inventors: Richard Joseph Duffy, Philip James Rodden
  • Patent number: 4085045
    Abstract: A process for inhibiting scale formation using a low molecular weight hydrolyzed polyacrylamide prepared by a process involving simultaneously and continuously charging separate streams of acrylamide monomer, ammonium persulfate (as catalyst) and mercaptoalkanoic acid (as chain transfer agent) to a reaction zone containing water under reflux, the rate of charging being such that the heat of polymerization is sufficient to maintain reflux in the reaction zone without exceeding the capacity of the condenser to remove the heat of reaction, and then reacting the polymer product with sufficient aqueous caustic to hydrolyze from about 60 to 90% of the amide groups in the polymer product.
    Type: Grant
    Filed: December 14, 1976
    Date of Patent: April 18, 1978
    Assignee: American Cyanamid Company
    Inventors: Dae Suk Song, Richard Joseph Duffy, Charles Richard Witschonke, Arthur Maurice Schiller, Mark Allan Higgins
  • Patent number: 4001161
    Abstract: A low molecular weight hydrolyzed polyacrylamide having exceptional effectiveness as a scale-inhibiting agent is prepared by a process involving simultaneously and continuously charging separate streams of acrylamide monomer, ammonium persulfate (as catalyst) and mercaptoalkanoic acid (as chain transfer agent) to a reaction zone containing water under reflux, the rate of charging being such that the heat of polymerization is sufficient to maintain reflux in the reaction zone without exceeding the capacity of the condenser to remove the heat of reaction, and then reacting the polymer product with sufficient aqueous caustic to hydrolyze from about 60 to 90% of the amide groups in the polymer product.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: January 4, 1977
    Assignee: American Cyanamid Company
    Inventors: Dae Suk Song, Richard Joseph Duffy, Charles Richard Witschonke, Arthur Maurice Schiller, Mark Allan Higgins