Patents by Inventor Douglas Eberhard
Douglas Eberhard 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: 7710713Abstract: An anode/separator assembly for a capacitor is described. The capacitor includes a pellet of anode active material having opposed first and second major faces extending to a surrounding side wall and a separator enveloping the pellet. The separator is formed of a first sheet of separator material including a first central region contiguous with the first major face wall of the anode pellet and a first perimeter region folded in contact with the surrounding side wall of the anode pellet, and a second sheet of separator material including a second central region contiguous with the second major face wall of the anode pellet and a second perimeter region overlapping a portion of the first perimeter region of the first separator sheet. The first and second sheets of separator material are then sealed to each other at a seam formed at the overlap between them using the anode pellet surrounding sidewall as a backing surface for a heat sealing device.Type: GrantFiled: September 20, 2007Date of Patent: May 4, 2010Assignee: Greatbatch Ltd.Inventors: Monica Restorff, Douglas Eberhard, Troy Lindke
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Patent number: 7483260Abstract: A capacitor a casing of first and second casing members, a feedthrough electrically insulated from the casing and extending there from, first and second anodes electrically connected to each other within the casing, a cathode, and an electrolyte is described. The first anode is electrically connected in parallel to the second anode by a first anode wire having opposite ends contacting the respective first and second anodes. A feedthrough wire extending outside the casing and electrically isolated there from is electrically connected to the first anode wire intermediate the first and second anodes. The cathode is disposed between the first and second anodes.Type: GrantFiled: December 22, 2006Date of Patent: January 27, 2009Assignee: Greatbatch Ltd.Inventors: Christopher J. Ziarniak, Rodney E. Stringham, Barry C. Muffoletto, Douglas Eberhard, Joseph E. Spaulding, Yanming Liu, Donald Monroe, Edward J. Gloss, Laurie O'Connor, Eric Ziarniak, William B. Elliott, Eric Stemen, Troy Lindke
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Publication number: 20080068779Abstract: An anode/separator assembly for a capacitor comprising a pellet of anode active material having opposed first and second major faces extending to a surrounding side wall and a separator enveloping the pellet is described. The separator is comprised of a first sheet of separator material including a first central region contiguous with the first major face wall of the anode pellet and a first perimeter region folded in contact with the surrounding side wall of the anode pellet, and a second sheet of separator material including a second central region contiguous with the second major face wall of the anode pellet and a second perimeter region overlapping a portion of the first perimeter region of the first separator sheet. The first and second sheets of separator material are then sealed to each other at a seam formed at the overlap between them using the anode pellet surrounding sidewall as a backing surface for a heat sealing device.Type: ApplicationFiled: September 20, 2007Publication date: March 20, 2008Applicant: Greatbatch Ltd.Inventors: Monica Restorff, Douglas Eberhard, Troy Lindke
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Publication number: 20080013257Abstract: An anode for an electrolytic capacitor is described. The anode is of a valve metal in powdered form, for example tantalum powder, that has been pressed into a pellet and sintered under a vacuum at high temperatures. Preferably, a poly(alkylene)carbonate binder is used to promote cohesion with the pressed powder body. The binder adds green strength to the pressed body and helps with powder flow before pressing. The poly(alkylene)carbonate binders are superior in that they leave virtually no residual carbon behind when burnt out during the sintering process. The pressed valve metal powder structure is then anodized to a desired voltage in a formation electrolyte to form a continuous dielectric oxide film on the sintered body as well as a terminal lead/anode lead weld extending therefrom.Type: ApplicationFiled: July 17, 2007Publication date: January 17, 2008Applicant: Greatbatch Ltd.Inventors: Keith Seitz, Ashish Shah, Barry Muffoletto, Wolfram Neff, Douglas Eberhard
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Publication number: 20080007894Abstract: An anode for an electrolytic capacitor is described. The anode is of a valve metal in powdered form, for example tantalum powder, that has been pressed into a pellet and sintered under a vacuum at high temperatures. Preferably, a poly(alkylene) carbonate binder is used to promote cohesion with the pressed powder body. The binder adds green strength to the pressed body and helps with powder flow before pressing. The poly(alkylene) carbonate binders are superior in that they leave virtually no residual carbon behind when burnt out during the sintering process. The pressed valve metal powder structure is then anodized to a desired voltage in a formation electrolyte to form a continuous dielectric oxide film on the sintered body as well as a terminal lead/anode lead weld extending therefrom.Type: ApplicationFiled: July 17, 2007Publication date: January 10, 2008Applicant: Greatbatch Ltd.Inventors: Keith Seitz, Ashish Shah, Barry Muffoletto, Wolfram Neff, Douglas Eberhard
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Patent number: 7244279Abstract: Deposition of a metal-containing reagent solution or suspension onto a conductive substrate by various pad-printing techniques is described. The result in a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, or carbide coating having an acceptable surface area for incorporation into an electrolytic capacitor, such as one have a tantalum anode.Type: GrantFiled: December 21, 2005Date of Patent: July 17, 2007Assignee: Greatbatch Ltd.Inventors: Keith Seitz, Ashish Shah, Barry Muffoletto, Wolfram Neff, Douglas Eberhard
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Patent number: 7116547Abstract: Deposition of a metal-containing reagent solution or suspension onto a conductive substrate by various pad-printing techniques is described. This results in a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, or carbide coating having an acceptable surface area for incorporation into an electrolytic capacitor, such as one having a tantalum anode.Type: GrantFiled: August 18, 2004Date of Patent: October 3, 2006Assignee: Wilson Greatbatch Technologies, Inc.Inventors: Keith Seitz, Ashish Shah, Barry Muffoletto, Wolfram Neff, Douglas Eberhard
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Publication number: 20060198081Abstract: Deposition of a metal-containing reagent solution or suspension onto a conductive substrate by various pad-printing techniques is described. The result in a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, or carbide coating having an acceptable surface area for incorporation into an electrolytic capacitor, such as one have a tantalum anode.Type: ApplicationFiled: December 21, 2005Publication date: September 7, 2006Applicant: WILSON GREATBATCH TECHNOLOGIES, INC.Inventors: Keith Seitz, Ashish Shah, Barry Muffoletto, Wolfram Neff, Douglas Eberhard
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Publication number: 20060154416Abstract: Deposition of a metal-containing reagent solution or suspension or a carbon nanotube-containing suspension onto a conductive substrate by various pad-printing techniques is described. In the case of a metal-containing solution or suspension, a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, carbide coating, or carbon nanotube coating results. In any event, the active coating has acceptable surface area for incorporation into an electrolytic capacitor, such as one having a tantalum anode.Type: ApplicationFiled: March 3, 2006Publication date: July 13, 2006Inventors: Keith Seitz, Ashish Shah, Barry Muffoletto, Wolfram Neff, Douglas Eberhard, Jason Hahl
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Patent number: 7012799Abstract: An enclosure for an electrical energy storage device such as a wet tantalum electrolytic capacitor or an electrochemical cell such as a lithium/silver vanadium oxide cell is described. The enclosure comprises two metallic casing components or portions. The first is a drawn member having a planar face wall supporting a surrounding sidewall and is shaped to nest the anode, cathode and intermediate separator components. The surrounding sidewall has an annular flange at its outer periphery. A mating cover is a stamped planar piece of similar material whose periphery fits inside the annular flange or rim as a complementary piece.Type: GrantFiled: April 19, 2005Date of Patent: March 14, 2006Assignee: Wilson Greatbatch Technologies, Inc.Inventors: Barry Muffoletto, Edward J. Gloss, Douglas Eberhard, Joseph Spaulding, Yanming Liu, Neal Nesselbeck, Louis Marinaccio, Eric Stemen, Rodney Stringham
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Publication number: 20050243501Abstract: An enclosure for an electrical energy storage device such as a wet tantalum electrolytic capacitor or an electrochemical cell such as a lithium/silver vanadium oxide cell is described. The enclosure comprises two metallic casing components or portions. The first is a drawn member having a planar face wall supporting a surrounding sidewall and is shaped to nest the anode, cathode and intermediate separator components. The surrounding sidewall has an annular flange at its outer periphery. A mating cover is a stamped planar piece of similar material whose periphery fits inside the annular flange or rim as a complementary piece.Type: ApplicationFiled: April 19, 2005Publication date: November 3, 2005Inventors: Barry Muffoletto, Edward Gloss, Douglas Eberhard, Joseph Spaulding, Yanming Liu, Neal Nesselbeck, Louis Marinaccio, Eric Stemen, Rodney Stringham
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Publication number: 20050079620Abstract: Methods for testing the hermeticity of casings for power sources intended to power implantable medical device by sensing the presence of vapors escaping from an electrolyte contained therein are described. More broadly, the present leak detection methods are applicable to any sealed enclosure having a first part sealed to a second part with a liquid contained therein. The liquid need not occupy the entire volume of the enclosure, but must contain at least one component having a vapor pressure at 25° C. of more than about 0.1 mm Hg. This component can assist in the functioning of the device such as an electrolyte, or be added for the sole purpose of leak detection.Type: ApplicationFiled: October 11, 2004Publication date: April 14, 2005Inventors: Douglas Eberhard, Barry Muffoletto, Wolfram Neff
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Publication number: 20050041374Abstract: Deposition of a metal-containing reagent solution or suspension onto a conductive substrate by various pad-printing techniques is described. This results in a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, or carbide coating having an acceptable surface area for incorporation into an electrolytic capacitor, such a s one have a tantalum anode.Type: ApplicationFiled: August 18, 2004Publication date: February 24, 2005Inventors: Keith Seitz, Ashish Shah, Barry Muffoletto, Wolfram Neff, Douglas Eberhard
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Patent number: 6850405Abstract: New designs that provide two anodes and their associated feedthroughs incorporated into one capacitor are described. The feedthrough wires can be in their own glass-to-metal seal or, they can be combined into one glass-to-metal seal as long as they are electrically insulated from each other. One embodiment has the anode feedthroughs left unconnected, while in other embodiments; they are joined externally of the capacitor casing. Several interconnect designs are described.Type: GrantFiled: December 16, 2003Date of Patent: February 1, 2005Assignee: Wilson Greatbatch Technologies, Inc.Inventors: Richard Mileham, Eric Stemen, Laurie O'Connor, William Elliott, Joseph E. Spaulding, Barry C. Muffoletto, Douglas Eberhard