Patents by Inventor Melvin S. Weinberg

Melvin S. Weinberg 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: 5571396
    Abstract: The present invention provides sensing electrodes and electrode assemblies for use in measuring the activity of ions in a fluid sample; measuring blocks which include a sensing module housing such sensing electrodes and a reference electrode; and a fluid analysis system which includes such measuring blocks.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: November 5, 1996
    Assignee: Dade International Inc.
    Inventors: Alan D. Cormier, Melvin S. Weinberg, Ronald L. Jones, Janet D. Vitiello
  • Patent number: 5019238
    Abstract: A testing module is provided having units which can be arranged seriatim to provide narrow through passageways linked to each other for quantitative determination of analytes passing through the units as by electrical testing with electrodes. Auxiliary passageways are preferably used in one unit to allow flushing of a first sample chamber without contamination from a second sample chamber. An electrode holder carries a membrane backed by a gel to aid in electrically linking the membrane to an electrode and to support the membrane in a substantially planar condition in use.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: May 28, 1991
    Assignee: Baxter Diagnostics Inc.
    Inventors: Alan D. Cormier, Melvin S. Weinberg
  • Patent number: 4786372
    Abstract: A fluid arrangement for analyzing a fluid sample using an electrochemical measuring apparatus having an analyzing device with an inlet port and an outlet port, the outlet port connecting to an outlet tube, the inlet port connecting to an inlet tube having a sample fluid receiving end, and the inlet tube connecting at a junction along its length to one end of a fluid supply tube, which fluid supply tube is connected at its opposite end to at least one fluid source containing a fluid. In a first mode, the fluid from the supply source flows through the fluid supply tube to the junction and the fluid then flows simultaneously in a proximal direction and a distal direction within the inlet tube from the junction, and in a second mode, a fluid sample is drawn through the inlet tube past the junction and into the analyzing module.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: November 22, 1988
    Assignee: Amdev, Inc.
    Inventors: Ronald L. Jones, Alan D. Cormier, Melvin S. Weinberg
  • Patent number: 4627893
    Abstract: A testing module is provided having units which can be arranged seriatim to provide narrow through passageways linked to each other for quantitative determination of analytes passing through the units as by electrical testing with electrodes. Auxiliary passageways are preferably used in one unit to allow flushing of a first sample chamber without contamination from a second sample chamber. An electrode holder carries a membrane backed by a gel to aid in electrically linking the membrane to an electrode and to support the membrane in a substantially planar condition in use.
    Type: Grant
    Filed: March 28, 1984
    Date of Patent: December 9, 1986
    Assignee: AMDEV, Inc.
    Inventors: Alan D. Cormier, Melvin S. Weinberg
  • Patent number: 4604166
    Abstract: Apparatus and a process for reducing peristaltic pump noise in a high impedance electrochemical measuring system by eliminating the noise at the pump source so as to minimize the effect of the noise on the precision and the response time of the measuring electrode. In a system having a high impedance measuring electrode connected to the elastomeric peristaltic tubing via a fluid conduit, a high impedance segment is disposed in the fluid conduit between the electrode and peristaltic tubing and means are disposed between the segment and peristaltic tubing for discharging the electrical noise generated by the action of the pump rollers over the peristaltic tubing. Preferably the discharging means is a conductive path electrically connected to an AC capacitive ground wherein the impedance of the capacitive ground is less than that of the segment. The segment may be a nonconductive liquid or gas such as air.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: August 5, 1986
    Assignee: Amdev, Inc.
    Inventors: Melvin S. Weinberg, Alan D. Cormier, Ronald L. Jones
  • Patent number: 4443407
    Abstract: An analysis system for measuring a plurality of parameters of a fluid sample comprises a housing, and a flow-through cell in the housing that has opposed surfaces with at least two ports in each surface. One of the ports is an inlet port, a second of the ports is an outlet port, and at least two of the ports are sensing ports. A sample flow path including a serpentine portion in the cell serially connects the ports and extends from a port in one surface to a port in the other surface and back to a port in the one surface, and a sensor is disposed in sealing engagement with each sensing port and forms a portion of the serpentine flow path so that sample fluid to be analyzed contacts a surface of each sensor.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: April 17, 1984
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Melvin S. Weinberg, Alan D. Cormier
  • Patent number: 4361540
    Abstract: An analysis system for measuring a plurality of parameters of a fluid sample comprises a housing, and a flow-through cell in the housing that has opposed surfaces with at least two ports in each surface. One of the ports is an inlet port, a second of the ports is an outlet port, and at least two of the ports are sensing ports. A sample flow path including a serpentine portion in the cell serially connects the ports and extends from a port in one surface to a port in the other surface and back to a port in the one surface, and a sensor is disposed in sealing engagement with each sensing port and forms a portion of the serpentine flow path so that sample fluid to be analyzed contacts a surface of each sensor.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: November 30, 1982
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Melvin S. Weinberg, Alan D. Cormier
  • Patent number: 4361539
    Abstract: An analysis system for measuring a plurality of parameters of a fluid sample comprises a housing, and a flow-through cell in the housing that has opposed surfaces with at least two ports in each surface. One of the ports is an inlet port, a second of the ports is an outlet port, and at least two of the ports are sensing ports. A sample flow path including a serpentine portion in the cell serially connects the ports and extends from a port in one surface to a port in the other surface and back to a port in the one surface, and a sensor is disposed in sealing engagement with each sensing port and forms a portion of the serpentine flow path so that sample fluid to be analyzed contacts a surface of each sensor.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: November 30, 1982
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Melvin S. Weinberg, Alan D. Cormier