Patents by Inventor John C. Lippold

John C. Lippold 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: 20120103949
    Abstract: A laser, aimed at a flyer plate tab, causes optical energy to be directed at the tab, specifically, at a top surface thereof. Energy impacting the tab accelerates the tab into an impact with a target sheet in a time on the order of about 10?5 seconds. The impact occurs in excess of 100 m/s, resulting in a metallurgical bond between the tab and the target sheet. The laser preferably strikes the top surface in a normal direction, based upon an initial angularity of the tab relative to the target. The laser emission may be augmented by an ablative layer on the top surface or a transparent covering on the top surface that reacts against the expanding gas from ablative activity on the top surface. The weld is formed without physical contact between the welding device and the tab.
    Type: Application
    Filed: December 22, 2011
    Publication date: May 3, 2012
    Applicant: The Ohio State University
    Inventors: Glenn S. Daehn, John C. Lippold
  • Patent number: 8084710
    Abstract: A laser, aimed at a flyer plate tab, causes optical energy to be directed at the tab, specifically, at a top surface thereof. Energy impacting the tab accelerates the tab out of an initial bent position, straightening it into an impact with a target sheet. The impact occurs in excess of 100 m/s, resulting in a metallurgical bond between the tab and the target sheet. The laser preferably strikes the top surface in a normal direction, based upon an initial angularity of the tab relative to the target. The laser emission, preferably in the range of 1 to 100 Joules delivered in a microsecond, may be augmented by an ablative layer on the top surface or a transparent covering on the top surface that reacts against the expanding gas from ablative activity on the top surface. The weld is formed without physical contact between the welding device and the tab.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: December 27, 2011
    Assignee: The Ohio State University
    Inventors: Glenn S. Daehn, John C. Lippold
  • Patent number: 7909505
    Abstract: A device and method for investigating phase transformation properties and structural changes of materials. In one form, the device simulates actual thermal processing conditions, while the method can be used in both simulations as well as in actual processing conditions. An analysis using at least one of the device and method is referred to as a single sensor differential thermal analysis, as it compares the temperature recorded in a measured specimen against a reference thermal history without requiring the derivation of the reference thermal history from measured reference temperatures.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: March 22, 2011
    Assignee: The Ohio State University
    Inventors: Boian Todorov Alexandrov, John C. Lippold, Seth Jason Norton
  • Publication number: 20110000953
    Abstract: A laser, aimed at a flyer plate tab, causes optical energy to be directed at the tab, specifically, at a top surface thereof. Energy impacting the tab accelerates the tab out of an initial bent position, straightening it into an impact with a target sheet. The impact occurs in excess of 100 m/s, resulting in a metallurgical bond between the tab and the target sheet. The laser preferably strikes the top surface in a normal direction, based upon an initial angularity of the tab relative to the target. The laser emission, preferably in the range of 1 to 100 Joules delivered in a microsecond, may be augmented by an ablative layer on the top surface or a transparent covering on the top surface that reacts against the expanding gas from ablative activity on the top surface. The weld is formed without physical contact between the welding device and the tab.
    Type: Application
    Filed: March 9, 2009
    Publication date: January 6, 2011
    Applicant: THE OHIO STATE UNIVERSITY
    Inventors: Glenn S. Daehn, John C. Lippold
  • Patent number: 7743967
    Abstract: A chromium-free welding consumable and a method of welding stainless steel to reduce the presence of chromium emissions. The consumable is made from an alloy that reduces the emission of chromium during a welding process, and include predominantly nickel, with between approximately five and twenty five percent by weight copper, up to approximately five percent by weight of palladium, up to approximately ten percent by weight of molybdenum and up to five percent non-copper alloying ingredients. Welding consumables made from the alloy are particularly well-suited for welding austenitic stainless steels, such as type 304 stainless steel. The method involves using chromium-free weld filler material with a stainless steel base material.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: June 29, 2010
    Assignee: The Ohio State University
    Inventors: Gerald S. Frankel, John C. Lippold
  • Patent number: 7696453
    Abstract: A chromium-free welding consumable and a method of welding stainless steel to reduce the presence of chromium emissions. The consumable is made from an alloy that reduces the emission of chromium during a welding process, and include predominantly nickel, with between approximately five and ten weight percent copper, up to approximately two percent by weight of ruthenium and up to five percent non-copper alloying ingredients. Welding consumables made from the alloy are particularly well-suited for welding austenitic stainless steels, such as type 304 stainless steel. The method involves using chromium-free weld filler material with a stainless steel base material.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: April 13, 2010
    Assignee: The Ohio State University Research Foundation
    Inventors: Gerald S. Frankel, John C. Lippold
  • Publication number: 20090119057
    Abstract: A device and method for investigating phase transformation properties and structural changes of materials. In one form, the device simulates actual thermal processing conditions, while the method can be used in both simulations as well as in actual processing conditions. An analysis using at least one of the device and method is referred to as a single sensor differential thermal analysis, as it compares the temperature recorded in a measured specimen against a reference thermal history without requiring the derivation of the reference thermal history from measured reference temperatures.
    Type: Application
    Filed: January 6, 2009
    Publication date: May 7, 2009
    Inventors: Boian Todorov Alexandrov, John C. Lippold, Seth Jason Norton
  • Patent number: 7473028
    Abstract: A device and method for investigating phase transformation properties and structural changes of materials. In one form, the device simulates actual thermal processing conditions, while the method can be used in both simulations as well as in actual processing conditions. An analysis using at least one of the device and method is referred to as a single sensor differential thermal analysis, as it compares the temperature recorded in a measured specimen against a reference thermal history without requiring the derivation of the reference thermal history from measured reference temperatures.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: January 6, 2009
    Assignee: The Ohio State University
    Inventors: Boian Todorov Alexandrov, John C. Lippold, Seth Jason Norton
  • Patent number: 7425229
    Abstract: A chromium-free welding consumable and a method of welding stainless steel to reduce the presence of chromium emissions. The consumable is made from an alloy that reduces the emission of chromium during a welding process, and include predominantly nickel, with between approximately five and twenty five percent by weight copper, up to approximately five percent by weight of palladium, up to approximately ten percent by weight of molybdenum and up to five percent non-copper alloying ingredients. Welding consumables made from the alloy are particularly well-suited for welding austenitic stainless steels, such as type 304 stainless steel. The method involves using chromium-free weld filler material with a stainless steel base material.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: September 16, 2008
    Assignee: The Ohio State University
    Inventors: Gerald S. Frankel, John C. Lippold
  • Publication number: 20080173701
    Abstract: A chromium-free welding consumable and a method of welding stainless steel to reduce the presence of chromium emissions. The consumable is made from an alloy that reduces the emission of chromium during a welding process, and include predominantly nickel, with between approximately five and ten weight percent copper, up to approximately two percent by weight of ruthenium and up to five percent non-copper alloying ingredients. Welding consumables made from the alloy are particularly well-suited for welding austenitic stainless steels, such as type 304 stainless steel. The method involves using chromium-free weld filler material with a stainless steel base material.
    Type: Application
    Filed: February 11, 2008
    Publication date: July 24, 2008
    Applicant: THE OHIO STATE UNIVERSITY
    Inventors: Gerald S. Frankel, John C. Lippold
  • Publication number: 20080128393
    Abstract: A chromium-free welding consumable and a method of welding stainless steel to reduce the presence of chromium emissions. The consumable is made from an alloy that reduces the emission of chromium during a welding process, and include predominantly nickel, with between approximately five and twenty five percent by weight copper, up to approximately five percent by weight of palladium, up to approximately ten percent by weight of molybdenum and up to five percent non-copper alloying ingredients. Welding consumables made from the alloy are particularly well-suited for welding austenitic stainless steels, such as type 304 stainless steel. The method involves using chromium-free weld filler material with a stainless steel base material.
    Type: Application
    Filed: February 11, 2008
    Publication date: June 5, 2008
    Inventors: Gerald S. Frankel, John C. Lippold