Patents by Inventor W. Richard Brown
W. Richard Brown 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: 7465521Abstract: Nickel-based alloys are provided for use as a positive electrode current collector in a solid cathode, nonaqueous liquid electrolyte, alkali metal anode active electrochemical cell. The nickel-based alloys are characterized by chemical compatibility with aggressive cell environments, high corrosion resistance and resistance to fluorination and passivation at elevated temperatures, thus improving the longevity and performance of the electrochemical cell. The cell can be of either a primary or a secondary configuration.Type: GrantFiled: December 8, 2004Date of Patent: December 16, 2008Assignee: Greatbatch Ltd.Inventors: Christine Frysz, W. Richard Brown, Peter A. Kreidler, Sally Ann Smesko, Karen Nuwer
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Patent number: 7314685Abstract: A titanium substrate having a thickened outer oxidation layer provided thereon by a treatment process performed either in an air atmosphere at elevated temperatures or through electrolytic oxidation (anodization), is discribed. The thusly conditioned titanium substrate serving as a cathode current collector for an electrode incorporated into an electrochemical cell exhibits improved electrical performance in comparison to the prior art techniques, i.e., electrically conducted carbon coated titanium screen and use of highly corrosion resistant materials, upon subsequent elevated temperature exposure.Type: GrantFiled: October 7, 2003Date of Patent: January 1, 2008Assignee: Greatbatch Ltd.Inventors: W. Richard Brown, Christine A. Frysz, Sally Ann Smesko, Esther S. Takeuchi
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Publication number: 20040131943Abstract: A titanium substrate having a thickened outer oxidation layer provided thereon by a treatment process performed either in an air atmosphere at elevated temperatures or through electrolytic oxidation (anodization), is discribed. The thusly conditioned titanium substrate serving as a cathode current collector for an electrode incorporated into an electrochemical cell exhibits improved electrical performance in comparison to the prior art techniques, i.e., electrically conducted carbon coated titanium screen and use of highly corrosion resistant materials, upon subsequent elevated temperature exposure.Type: ApplicationFiled: October 7, 2003Publication date: July 8, 2004Inventors: W. Richard Brown, Christine A. Frysz, Sally Ann Smesko, Esther S. Takeuchi
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Publication number: 20030113632Abstract: A titanium substrate having a thickened outer oxidation layer provided thereon by a treatment process performed either in an air atmosphere at elevated temperatures or through electrolytic oxidation (anodization), is described. The thusly conditioned titanium substrate serving as a cathode current collector for an electrode incorporated into an electrochemical cell exhibits improved electrical performance in comparison to the prior art techniques, i.e., electrically conducted carbon coated titanium screen and use of highly corrosion resistant materials, upon subsequent elevated temperature exposure.Type: ApplicationFiled: July 30, 2001Publication date: June 19, 2003Inventors: W. Richard Brown, Christine A. Frysz, Sally Ann Smesko, Esther S. Takeuchi
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Patent number: 6541158Abstract: Cobalt-based alloys are provided for use as a positive electrode current collector in a solid cathode, nonaqueous liquid electrolyte, alkali metal anode active electrochemical cell. The cobalt-based alloys are characterized by chemical compatibility with aggressive cell environments, high corrosion resistance and resistance to fluorination and passivation at elevated temperatures, thus improving the longevity and performance of the electrochemical cell. The cell can be of either a primary or a secondary configuration.Type: GrantFiled: July 12, 2001Date of Patent: April 1, 2003Assignee: Wilson Greatbatch Ltd.Inventors: Christine A. Frysz, Sally Ann Smesko, Peter A. Kreidler, W. Richard Brown, Esther S. Takeuchi
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Publication number: 20020051909Abstract: Cobalt-based alloys are provided for use as a positive electrode current collector in a solid cathode, nonaqueous liquid electrolyte, alkali metal anode active electrochemical cell. The cobalt-based alloys are characterized by chemical compatibility with aggressive cell environments, high corrosion resistance and resistance to fluorination and passivation at elevated temperatures, thus improving the longevity and performance of the electrochemical cell. The cell can be of either a primary or a secondary configuration.Type: ApplicationFiled: July 12, 2001Publication date: May 2, 2002Inventors: Christine A. Frysz, Sally Ann Smesko, Peter A. Kreidler, W. Richard Brown, Esther S. Takeuchi
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Patent number: 6306544Abstract: Cobalt-based alloys are provided for use as a positive electrode current collector in a solid cathode, nonaqueous liquid electrolyte, alkali metal anode active electrochemical cell. The cobalt-based alloys are characterized by chemical compatibility with aggressive cell environments, high corrosion resistance and resistance to fluorination and passivation at elevated temperatures, thus improving the longevity and performance of the electrochemical cell. The cell can be of either a primary or a secondary configuration.Type: GrantFiled: February 25, 1999Date of Patent: October 23, 2001Assignee: Wilson Greatbatch Ltd.Inventors: Christine A. Frysz, Sally Ann Smesko, Peter A. Kreidler, W. Richard Brown, Esther S. Takeuchi
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Patent number: 6227818Abstract: All electromagnetic pump comprising a housing having fluid receiving and pumping chambers in communication with an inlet and outlet, respectively, an electromagnet carried by the housing external to the fluid chambers thereof, and an armature movable in the housing having a pole portion magnetically attracted by the electromagnet and a piston portion to force fluid out of the chambers and through the pump outlet. A path provides controlled bypass for bubbles in the fluid around the armature piston portion between the fluid pumping chamber and the fluid receiving chamber only during the return stroke of the armature. Fluid inertial effect is reduced by an outlet orifice provided in the fluid path from the pump outlet and by a bypass orifice in the fluid bypass path, the outlet and bypass orifices being provided either individually or in combination depending upon the fluid flow characteristics of the system of which the pump is a part.Type: GrantFiled: May 18, 1999Date of Patent: May 8, 2001Assignee: Wilson Greatbatch Ltd.Inventors: Theodore J. Falk, W. Richard Brown, Lawrence E. Morris, Norbert W. Frenz, Jr., Douglas K. Gillies, Raymond S. Konopa
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Patent number: 6193477Abstract: All electromagnetic pump comprising a housing having fluid receiving and pumping chambers in communication with an inlet and outlet, respectively, an electromagnet carried by the housing external to the fluid chambers thereof, and an armature movable in the housing having a pole portion magnetically attracted by the electromagnet and a piston portion to force fluid out of the chambers and through the pump outlet. A path provides controlled bypass for bubbles in the fluid around the armature piston portion between the fluid pumping chamber and the fluid receiving chamber only during the return stroke of the armature. Fluid inertial effect is reduced by an outlet orifice provided in the fluid path from the pump outlet and by a bypass orifice in the fluid bypass path, the outlet and bypass orifices being provided either individually or in combination depending upon the fluid flow characteristics of the system of which the pump is a part.Type: GrantFiled: June 29, 1999Date of Patent: February 27, 2001Assignee: Wilson Greatbatch Ltd.Inventors: Theodore J. Falk, W. Richard Brown, Lawrence E. Morris, Norbert W. Frenz, Jr., Douglas K. Gillies, Raymond S. Konopa
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Patent number: 5915929Abstract: An electromagnetic pump having an electromagnet carried by the housing external to the fluid chambers, and an armature moveable in the housing having a pole magnetically attracted by the electromagnet and a piston to force fluid out of the chambers and through the pump outlet. A path provides controlled bypass for bubbles in the fluid around the armature piston between the fluid pumping chamber and the fluid receiving chamber only during the return stroke of the armature. Fluid inertia is reduced by an outlet orifice in the path of fluid flow from the pump outlet and by a bypass orifice for fluid flow in the bypass path, the orifices being provided either individually or in combination depending upon the fluid flow characteristics of the system including the pump. An accumulator in the fluid flow path between the pump outlet and a catheter leading away from the pump alleviates inertial and viscous effects arising from the catheter.Type: GrantFiled: August 18, 1998Date of Patent: June 29, 1999Assignee: Wilson Greatbatch Ltd.Inventors: Theodore J. Falk, W. Richard Brown, Lawrence E. Morris, Norbert W. Frenz, Jr., Douglas K. Gillies, Raymond S. Konopa
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Patent number: 5797733Abstract: An electromagnetic pump comprising a housing having fluid receiving and pumping chambers in communication with an inlet and outlet, respectively, an electromagnet carried by the housing external to the fluid chambers thereof, and an armature movable in the housing having a pole portion magnetically attracted by the electromagnet and a piston portion to force fluid out of the chambers and through the pump outlet. A path provides controlled bypass for bubbles in the fluid around the armature piston portion between the fluid pumping chamber and the fluid receiving chamber only during the return stroke of the armature.Fluid inertia is reduced by an outlet orifice in the path of fluid flow from the pump outlet and by a bypass orifice for fluid flow in the bypass path, the orifices being provided either individually or in combination depending upon the fluid flow characteristics of the system including the pump.Type: GrantFiled: February 24, 1997Date of Patent: August 25, 1998Assignee: Wilson Greatbatch Ltd.Inventors: Theodore J. Falk, W. Richard Brown, Lawrence E. Morris, Norbert W. Frenz, Jr., Douglas K. Gillies, Raymond S. Konopa
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Patent number: 5604055Abstract: Heat treating the inner, contact surface of an electrochemical cell casing in an oxidizing atmosphere such as air to render the inner surface thereof essentially contamination free and suitable as a current collector, is described. The casing is preferably of stainless steel and houses the alkali metal-halogen couple in a case-positive configuration. The oxidized cases are ready for cell assembly upon cooling and cell electrical performance is maintained without the need for wet chemical treatment of any kind.Type: GrantFiled: February 16, 1996Date of Patent: February 18, 1997Assignee: Wilson Greatbatch Ltd.Inventors: W. Richard Brown, Sally A. Smesko, Esther S. Takeuchi
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Patent number: 5368274Abstract: An electromagnetic valve comprising a housing having a fluid containing region and first and second ports in communication with the region, an electromagnet carried by the housing located external to the fluid containing region, and a thin diaphragm of fluid impermeable material which hermetically isolates the electromagnet from the fluid containing region. An armature is movably positioned in the region and has a pole portion located for magnetic attraction by the electromagnet and has a plunger portion provided with a valve formation for opening and closing one of the ports to place both ports in fluid communication through the fluid containing region of the housing and to block fluid communication between the ports. The armature is moved from a rest position through a forward stroke when attracted by the electromagnet to change the control state of the valve, and the armature is moved by a biasing spring in an opposite direction through a return stroke back to the rest position.Type: GrantFiled: September 17, 1992Date of Patent: November 29, 1994Assignee: Wilson Greatbatch Ltd.Inventors: Theodore J. Falk, W. Richard Brown, Lawrence E. Morris, Norbert W. Franz, Jr.
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Patent number: 5114810Abstract: A highly alloyed nickel-containing ferritic stainless steel material for use as a cathode current collector for lithium solid cathode cells is provided. The material does not require costly melting practices and provides high corrosion resistance particularly where elevated temperature, 72.degree. C. or higher, storage and performance is required relative to other cathode current collector materials thereby increasing cell longevity.Type: GrantFiled: February 5, 1990Date of Patent: May 19, 1992Assignee: Wilson Greatbatch Ltd.Inventors: Christine A. Frysz, W. Richard Brown