Patents by Inventor Robert S. Feldstein

Robert S. Feldstein 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: 7452449
    Abstract: A method and apparatus are provided for electrolyzing water for enhanced production of oxygen, hydrogen and heat by the steps of (i) providing an electrochemical cell comprising an isotopic hydrogen storage cathode, an electrically conductive anode and an ionically conducting electrolyte comprising water, and (ii) impressing a repeating sequence of voltages across the cathode and anode comprised of at least two cell voltage regimes, a first cell voltage regime consisting of a voltage sufficient to enhance cathodic absorption of hydrogen, and a second cell voltage regime consisting of at least one voltage pulse which is at least two times the voltage of the first cell voltage regime for a total duration no greater than 0.10 seconds.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: November 18, 2008
    Assignee: Lectro Press, Inc.
    Inventors: Norman L. Weinberg, Klaus Tomantschger, Robert S. Feldstein, J. David Genders, Joseph M. Rait
  • Patent number: 7080921
    Abstract: A lighting fixture provides a substantially uniform line of light (bar of light) for illumination or signage. It uses a linear array of LEDs (light-emitting diodes) which are relatively efficient, long-lasting and resistant to damage from vibration. The LEDs are arranged within a reflective shell within the fixture and one or more elongated cylindrical focusing lenses are positioned at a specific distance in front of the LEDs to focus the light into a line of light. A focusing lens may also be the protective window of the reflective shell.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: July 25, 2006
    Assignee: Argent Electric, Inc.
    Inventor: Robert S. Feldstein
  • Patent number: 7067987
    Abstract: An electronic control system especially for non-linear loads, such as high pressure sodium (HPS) lamps, includes an active power factor correction circuit (APFC). The system provides a power factor correction of above 0.95; total harmonic distortion (THD) below 5%; lamp crest factor (LCF) close to unity; efficient power consumption and reliable open circuit voltage (OCV) under all power line conditions. A ballast would include integrated circuits (ICs) and a four-arm transistor bridge which is directly driven by integrated circuits. The bridge generates reversal of polarity to the load. An approximate average current feedback is derived from a load current. A resistor divider in parallel with the load provides voltage feedback. The average current feedback and voltage feedback are added together to provide an approximation of power consumed by the load, without the complex circuitry required for a true power feedback of current multiplied by voltage.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: June 27, 2006
    Assignee: Argent Electric, Inc.
    Inventors: Charles Dexter Powers, Jr., Robert S. Feldstein
  • Patent number: 6991779
    Abstract: Compositions containing biologically active molecules encapsulated in self-assembling, diketopiperazine microspheres (TECHNOSPHEREs™) and methods for making and administering such compositions are described herein. The compositions can be used to immunize individuals against agents of biological warfare. The biologically active molecules include atropine, antibodies, antigens, and antibiotics. The compositions can be placed in an inhalation device for self-administration. Pulmonary delivery of TECHNOSPHERE™ encapsulated atropine, antibodies, vaccines, and antibiotics provides an accelerated onset of immunity to the targeted disease. Furthermore, the TECHNOSPHERE™ encapsulated atropine, antibodies, vaccines, and antibiotics are stable formulations, suitable for stockpiling, rapid dissemination and mass treatment.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: January 31, 2006
    Assignee: MannKind Corporation
    Inventors: Solomon S. Steiner, Cohava Gelber, Robert S. Feldstein, Roderike Pohl
  • Publication number: 20040200277
    Abstract: A level detector for storage tanks for fluids comprises a microprocessor, a network of resistive elements connected in series or parallel, and a plurality of conductive elements between them, connected across a power source. The resistive elements have a high temperature coefficient, and are heated by passing a high electric current through them, after which a low electric current is passed through them and the voltage between them is sampled by the microprocessor. The resistive elements lose heat through conduction, so that a pair of resistive elements can be detected having differential cooling between them as a consequence of being adjacent to the void within the tank or the fluid within the tank. Thus, an approximation of the fluid level within the storage tank can be determined and signalled remotely.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Inventors: Robert S. Feldstein, Donald Edward Hewson, Joseph Rait
  • Patent number: 6797134
    Abstract: A method and apparatus are provided for electrolyzing water for enhanced production of oxygen, hydrogen and heat by the steps of (i) providing an electrochemical cell comprising an isotopic hydrogen storage cathode, an electrically conductive anode and an ionically conducting electrolyte comprising water, and (ii) impressing a repeating sequence of voltages across the cathode and anode comprised of at least two cell voltage regimes, a first cell voltage regime consisting of a voltage sufficient to enhance cathodic absorption of hydrogen, and a second cell voltage regime consisting of at least one voltage pulse which is at least two times the voltage of the first cell voltage regime for a total duration no greater than 0.10 seconds.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: September 28, 2004
    Assignee: Lectro Press, Inc.
    Inventors: Norman L. Weinberg, Klaus Tomantschger, Robert S. Feldstein, J. David Genders, Joseph M. Rait
  • Publication number: 20040084325
    Abstract: A method and apparatus are provided for electrolyzing water for enhanced production of oxygen, hydrogen and heat by the steps of (i) providing an electrochemical cell comprising an isotopic hydrogen storage cathode, an electrically conductive anode and an tonically conducting electrolyte comprising water, and (ii) impressing a repeating sequence of voltages across the cathode and anode comprised of at least two cell voltage regimes, a first cell voltage regime consisting of a voltage sufficient to enhance cathodic absorption of hydrogen, and a second cell voltage regime consisting of at least one voltage pulse which is at least two times the voltage of the first cell voltage regime for a total duration no greater than 0.10 seconds.
    Type: Application
    Filed: August 19, 2003
    Publication date: May 6, 2004
    Applicant: LECTRO PRESS, INC.
    Inventors: Norman L. Weinberg, Klaus Tomantschger, Robert S. Feldstein, J. David Genders, Joseph M. Rait
  • Publication number: 20040084326
    Abstract: A method and apparatus are provided for electrolyzing water for enhanced production of oxygen, hydrogen and heat by the steps of (i) providing an electrochemical cell comprising an isotopic hydrogen storage cathode, an electrically conductive anode and an ionically conducting electrolyte comprising water, and (ii) impressing a repeating sequence of voltages across the cathode and anode comprised of at least two cell voltage regimes, a first cell voltage regime consisting of a voltage sufficient to enhance cathodic absorption of hydrogen, and a second cell voltage regime consisting of at least one voltage pulse which is at least two times the voltage of the first cell voltage regime for a total duration no greater than 0.10 seconds.
    Type: Application
    Filed: August 19, 2003
    Publication date: May 6, 2004
    Applicant: LECTRO PRESS, INC.
    Inventors: Norman L. Weinberg, Klaus Tomantschger, Robert S. Feldstein, J. David Genders, Joseph M. Rait
  • Publication number: 20040018152
    Abstract: Compositions containing biologically active molecules encapsulated in self-assembling, diketopiperazine microspheres (TECHNOSPHEREs™) and methods for making and administering such compositions are described herein. The compositions can be used to immunize individuals against agents of biological warfare. The biologically active molecules include atropine, antibodies, antigens, and antibiotics. The compositions can be placed in an inhalation device for self-administration. Pulmonary delivery of TECHNOSPHERE™ encapsulated atropine, antibodies, vaccines, and antibiotics provides an accelerated onset of immunity to the targeted disease. Furthermore, the TECHNOSPHERE™ encapsulated atropine, antibodies, vaccines, and antibiotics are stable formulations, suitable for stockpiling, rapid dissemination and mass treatment.
    Type: Application
    Filed: January 17, 2003
    Publication date: January 29, 2004
    Applicant: Pharmaceutical Discovery Corporation
    Inventors: Solomon S. Steiner, Cohava Gelber, Robert S. Feldstein, Roderike Pohl
  • Patent number: 6638413
    Abstract: A method and apparatus are provided for electrolyzing water for enhanced production of oxygen, hydrogen and heat by the steps of (i) providing an electrochemical cell comprising an isotopic hydrogen storage cathode, an electrically conductive anode and an ionically conducting electrolyte comprising water, and (ii) impressing a repeating sequence of voltages across the cathode and anode comprised of at least two cell voltage regimes, a first cell voltage regime consisting of a voltage sufficient to enhance cathodic absorption of hydrogen, and a second cell voltage regime consisting of at least one voltage pulse which is at least two times the voltage of the first cell voltage regime for a total duration no greater than 0.10 seconds.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: October 28, 2003
    Assignee: Lectro Press, Inc.
    Inventors: Norman L. Weinberg, Klaus Tomantschger, Robert S. Feldstein, J. David Genders, Joseph M. Rait
  • Patent number: 5646504
    Abstract: Apparatus and methods for quickly and safely recharging and magnetically balancing a series of batteries or battery groups to their full charge capacity. The battery charging system includes a multi-output transformer having an impedance in the primary, a secondary with multiple outputs, and circuitry for charging each of the batteries or battery groups whereby the portion of charging current flowing from each of the multiple outputs to each of the batteries or battery groups relates inversely to the voltage of each of the batteries or battery groups.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: July 8, 1997
    Inventor: Robert S. Feldstein
  • Patent number: 5629601
    Abstract: Apparatus and methods for charging a string of serially connected batteries. A system charger is connected across the string of batteries to charge the batteries to a percentage of full charge capacity. Then, individual battery chargers independently charge each of the batteries to full charge capacity.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: May 13, 1997
    Inventor: Robert S. Feldstein
  • Patent number: 5621297
    Abstract: A process for charging a cell is disclosed. In this process, a discharged cell is connected to a charger. Discharge pulses are periodically withdrawn from the cell. Charging pulses are provided by the charger, and they are delivered to the cell only when the cell voltage at the end of the discharge interval is less than a specified reference voltage.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: April 15, 1997
    Inventor: Robert S. Feldstein
  • Patent number: 5585209
    Abstract: Bipolar lead/acid batteries are provided, having at least one cored bipolar battery plate. The bipolar battery plate comprises a core element having an active surface at each side thereof, with lead at the negative side and lead oxide at the positive side of the cored battery plate. The core element comprises titanium or other appropriate high barrier height material, at least at each surface thereof which faces the respective lead and lead oxide active surfaces. A molded polymer frame is provided around the bipolar plate, and appropriate negative and positive end plates are provided opposite the outer most positive or negative sides of the battery so as to provide a functioning battery structure. The polymer frame is such that it may be sealed against electrolyte leakage so that the electrolyte is confined within the structure by the battery frames. The battery frame may be vented so as to permit pressurized gas to flow from the battery when the pressure exceeds a predetermined pressure.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: December 17, 1996
    Inventor: Robert S. Feldstein
  • Patent number: 5574423
    Abstract: A self-diagnostic circuit for an emergency lamphead is disclosed that is effective during standby operation of the lamphead to indicate whether the lamphead is capable of operating in an emergency mode. The self-diagnostic circuit includes a high-impedance circuit path connected in series with the lamphead and including an indicator, such as an LED, which is energized by a battery current passing through the circuit path and lamphead during the standby mode operation. The battery current is insufficient to illuminate the lamphead, but is sufficient to energize the LED whenever proper electrical continuity exists through the lamphead. A second high-impedance circuit path may be connected in parallel with the lamphead, in order to energize a second LED when proper continuity does not through the lamphead.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: November 12, 1996
    Assignee: Hubbell Incorporated
    Inventors: David A. Vosika, Robert S. Feldstein
  • Patent number: 5544681
    Abstract: Methods for fabricating cored structures are provided. The cored structures may particularly find usefulness as cored battery plates for use in lead/acid batteries. A pre-formed core element is provided, and on its surfaces there is placed a thin layer of an active surface material. That active surface material is one which may enter into a chemical or electrochemical process when in use and in the presence of an electrolyte or other agent which will promote such chemical or electrochemical process. In the case of lead/acid batteries, the active surface is lead or lead oxide. The core element is generally one which does not bond with the active surface material, but will if the active surface material is ion bombarded or neutral atom embedded into the surface of the core, and where the amount of bombardment or embedment is determined by controlling the accelerator voltage.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: August 13, 1996
    Assignee: Derafe, Ltd.
    Inventor: Robert S. Feldstein
  • Patent number: 5523667
    Abstract: Apparatus and methods for recharging various types of battery cells are enclosed involving alternating periods of charging and discharging of the cells, a reference charge cut-off voltage, a comparator for comparing cell voltage with cut-off voltage, and a circuit for stopping charging activity when cell open circuit voltage is at least a desired minimum voltage. Charge activity is terminated following the achievement of a minimum acceptable state-of-charge so as to limit the total current delivered to the cell in order to prevent cell degradation.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: June 4, 1996
    Inventor: Robert S. Feldstein
  • Patent number: 5523668
    Abstract: A battery charging system and method of operating the system is provided which can charge either NiCd and/or NiMH batteries with significant permanent recombinant capacity sufficient to permit cell charge completion, as well as charge maintenance, in an acceptable period of time.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: June 4, 1996
    Inventor: Robert S. Feldstein
  • Patent number: 5493196
    Abstract: A battery charger for charging alkaline zinc/manganese dioxide cells is disclosed.The battery charger contains means for producing a direct current voltage at 25 degrees centigrade of from about 1.6 to about 1.7 volt as well as means for individually and independently limiting the voltage delivered by the battery charger to each of the cells. The charger also contains means for individually and independently limiting the current applied to each of said cells by said battery charger as well as means for individually and continuously varying the current applied to each of said cells.Once any of the cells in the charge has reached its desired voltage, the charger reduces the current supplied to said cell substantially to zero current.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: February 20, 1996
    Assignee: Batonex, Inc.
    Inventor: Robert S. Feldstein
  • Patent number: 5411821
    Abstract: An integral battery electrode structure for lead/acid battery plates is provided. The principle structure material is elemental lead or lead alloyed with antimony or calcium. At least the surface of the lead or alloy has an ion implanted or atomic embedded graded junction of at least one other atomic species, such as titanium, cadmium, or bismuth. Additionally, highly oxidative atomic species such as fluorine, chlorine, or metallic components such as titanium, tin, vanadium, chromium, or rhodium may be added at the surface of the lead or lead alloy. Optionally, an element such as cadmium, arsenic, uranium, barium or bismuth may be added at the surface and within several atomic layers below the surface in such a manner that the concentration may be from 0.05% to about 10.0% of the total mass in that region but that the total concentration in the electrode structure is from about 50 to about 350 parts per billion.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: May 2, 1995
    Assignee: Derafe, Ltd.
    Inventor: Robert S. Feldstein