Patents by Inventor David J. Cooper

David J. Cooper 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: 10717668
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt frits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: July 21, 2020
    Assignee: GUARDIAN GLASS, LLC.
    Inventors: Hong Wang, David J. Cooper
  • Patent number: 10703667
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating (e.g., from one or more substantially linear focused IR heat sources) is provided proximate to the peripheral edges of the unit so as to melt frits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: July 7, 2020
    Assignee: GUARDIAN GLASS, LLC
    Inventor: David J. Cooper
  • Publication number: 20190256396
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt frits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Application
    Filed: May 2, 2019
    Publication date: August 22, 2019
    Inventors: Hong WANG, David J. COOPER
  • Publication number: 20190169922
    Abstract: Certain example embodiments of this invention relate to evacuation and sealing techniques for VIG units, and/or multi-chamber vacuum ovens for accomplishing the same. In certain example embodiments, a VIG assembly is inserted into a multi-chamber apparatus to successively reduce the chamber pressure and thus the pressure between substrates comprising the VIG assembly until a final evacuation pressure is reached. Once the final evacuation pressure is reached, a pump-out port or tube of the VIG assembly is sealed forming a VIG unit while the VIG assembly is still in the vacuum chamber. After sealing, chamber pressures are gradually increased to atmospheric while the gap between the substrates of the VIG unit remains at a pressure less than atmospheric which is close to the final evacuation pressure.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 6, 2019
    Inventor: David J. COOPER
  • Patent number: 10294140
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt frits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 21, 2019
    Assignee: Guardian Glass, LLC
    Inventors: Hong Wang, David J. Cooper
  • Patent number: 10221613
    Abstract: Certain example embodiments of this invention relate to evacuation and sealing techniques for VIG units, and/or multi-chamber vacuum ovens for accomplishing the same. In certain example embodiments, a VIG assembly is inserted into a multi-chamber apparatus to successively reduce the chamber pressure and thus the pressure between substrates comprising the VIG assembly until a final evacuation pressure is reached. Once the final evacuation pressure is reached, a pump-out port or tube of the VIG assembly is sealed forming a VIG unit while the VIG assembly is still in the vacuum chamber. After sealing, chamber pressures are gradually increased to atmospheric while the gap between the substrates of the VIG unit remains at a pressure less than atmospheric which is close to the final evacuation pressure.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: March 5, 2019
    Assignee: Guardian Glass, LLC
    Inventor: David J. Cooper
  • Publication number: 20180271475
    Abstract: A system for providing stethoscopic information to a remote user, the system comprising a communication device capable of receiving and outputting audible sounds and an electronic stethoscope for detecting and outputting audible patient sounds. The system further comprises a capacitive voltage divider circuit coupled to and disposed between the electronic stethoscope and the communication device, wherein the capacitive voltage divider circuit is configured to obtain an input voltage signal from the electronic stethoscope and reduce the input voltage signal to an output voltage signal suitable for access by the communication device.
    Type: Application
    Filed: October 2, 2017
    Publication date: September 27, 2018
    Inventor: David J. Cooper
  • Publication number: 20180066471
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, infrared (IR) heating elements are controllable to emit IR radiation at a peak wavelength in the near infrared (NIR) and/or short wave infrared (SWIR) band(s), and the peak wavelength may be varied by adjusting the voltage applied to the IR heating elements. The peak wavelength may be selected so as to preferentially heat the frit material used to form a VIG edge seal while reducing the amount of heat provided to substrates of the VIG unit. In certain example embodiments, the substrates of the VIG unit do not reach a temperature of 325 degrees C. for more than 1 minute.
    Type: Application
    Filed: November 2, 2017
    Publication date: March 8, 2018
    Inventors: David J. COOPER, Ryan L. DEAR, Robert A. MILLER
  • Publication number: 20180044217
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt frits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 15, 2018
    Inventors: Hong WANG, David J. COOPER
  • Patent number: 9822580
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, infrared (IR) heating elements are controllable to emit IR radiation at a peak wavelength in the near infrared (NIR) and/or short wave infrared (SWIR) band(s), and the peak wavelength may be varied by adjusting the voltage applied to the IR heating elements. The peak wavelength may be selected so as to preferentially heat the frit material used to form a VIG edge seal while reducing the amount of heat provided to substrates of the VIG unit. In certain example embodiments, the substrates of the VIG unit do not reach a temperature of 325 degrees C. for more than 1 minute.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: November 21, 2017
    Assignee: Guardian Glass, LLC
    Inventors: David J. Cooper, Ryan L. Dear, Robert A. Miller
  • Patent number: 9783447
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt fits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: October 10, 2017
    Assignee: Guardian Glass, LLC
    Inventors: Hong Wang, David J. Cooper
  • Publication number: 20170268283
    Abstract: Certain example embodiments of this invention relate to evacuation and sealing techniques for VIG units, and/or multi-chamber vacuum ovens for accomplishing the same. In certain example embodiments, a VIG assembly is inserted into a multi-chamber apparatus to successively reduce the chamber pressure and thus the pressure between substrates comprising the VIG assembly until a final evacuation pressure is reached. Once the final evacuation pressure is reached, a pump-out port or tube of the VIG assembly is sealed forming a VIG unit while the VIG assembly is still in the vacuum chamber. After sealing, chamber pressures are gradually increased to atmospheric while the gap between the substrates of the VIG unit remains at a pressure less than atmospheric which is close to the final evacuation pressure.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Inventor: David J. COOPER
  • Patent number: 9677320
    Abstract: Certain example embodiments of this invention relate to evacuation and sealing techniques for VIG units, and/or multi-chamber vacuum ovens for accomplishing the same. In certain example embodiments, a VIG assembly is inserted into a multi-chamber apparatus to successively reduce the chamber pressure and thus the pressure between substrates comprising the VIG assembly until a final evacuation pressure is reached. Once the final evacuation pressure is reached, a pump-out port or tube of the VIG assembly is sealed forming a VIG unit while the VIG assembly is still in the vacuum chamber. After sealing, chamber pressures are gradually increased to atmospheric while the gap between the substrates of the VIG unit remains at a pressure less than atmospheric which is close to the final evacuation pressure.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: June 13, 2017
    Assignee: Guardian Industries Corp.
    Inventor: David J. Cooper
  • Publication number: 20160347650
    Abstract: Certain example embodiments of this invention relate to a frit slurry paste for use in assemblies (e.g., a vacuum insulated glass unit or a plasma display panel), and methods of making the same. Frit powder, binder material, and a water-based solvent are mixed together to form an intermediate mixture. The frit powder is substantially lead free, and the water-based solvent is provided at a first temperature. Additional water-based solvent is added to the intermediate mixture to form a frit slurry paste. The additional water-based solvent is provided at a second temperature, with the second temperature being lower than the first temperature. The binder material is provided at a concentration of 0.001%-20% by weight with respect to the frit slurry paste or the frit slurry paste absent the frit powder. The frit slurry paste has a bulk viscosity of 2,000-200,000 cps.
    Type: Application
    Filed: August 9, 2016
    Publication date: December 1, 2016
    Inventors: David J. COOPER, Timothy A. DENNIS
  • Patent number: 9428416
    Abstract: Certain example embodiments of this invention relate to a frit slurry paste for use in assemblies (e.g., a vacuum insulated glass unit or a plasma display panel), and methods of making the same. Frit powder, binder material, and a water-based solvent are mixed together to form an intermediate mixture. The frit powder is substantially lead free, and the water-based solvent is provided at a first temperature. Additional water-based solvent is added to the intermediate mixture to form a frit slurry paste. The additional water-based solvent is provided at a second temperature, with the second temperature being lower than the first temperature. The binder material is provided at a concentration of 0.001%-20% by weight with respect to the frit slurry paste or the frit slurry paste absent the frit powder. The frit slurry paste has a bulk viscosity of 2,000-200,000 cps.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 30, 2016
    Assignee: Guardian Industries Corp.
    Inventors: David J. Cooper, Timothy A. Dennis
  • Publication number: 20160107919
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt fits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Inventors: Hong WANG, David J. COOPER
  • Patent number: 9221707
    Abstract: Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt frits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: December 29, 2015
    Assignee: Guardian Industries Corp.
    Inventors: Hong Wang, David J. Cooper
  • Patent number: 9074417
    Abstract: Certain example embodiments of this invention relate to internal grid keepers for insulating glass units, and/or insulating glass units incorporating the same. The grid keepers of certain example embodiments may include a shoulder bent into an acute angle and may include one or more stamped features on or proximate to the shoulder for engaging with a punched, hollowed, or otherwise formed feature in an edge seal, along with one or more stamped features on an elongate portion extending from the shoulder for engaging with a grid or muntin. In certain example embodiments, the keeper may be on level with or slightly lower than a primary seal so as to reduce the likelihood of the keeper interfering with the seal.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: July 7, 2015
    Assignee: Guardian Industries Corp.
    Inventors: David J. Cooper, Robert A. Miller
  • Patent number: 8871316
    Abstract: Certain example embodiments relate to improved spacers for insulated glass units. Certain example embodiments relate to corrugated spacers that extend around a periphery of an IG unit. In certain example embodiments, the spacer includes at least one structured concave cavity. When positioned in conjunction with a substrate, the cavity may be filled with a sealant. In certain example embodiments, the sealant may be a thermoplastic sealant. In certain example embodiments, another cavity may be provided that may accept a structural sealant. In certain example embodiments, the thickness of the corrugated faces of a spacer may be less than the thickness of the shoulders of spacer.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 28, 2014
    Assignee: Guardian Industries Corp.
    Inventor: David J. Cooper
  • Patent number: 8776350
    Abstract: Certain example embodiments relate to improved spacers for insulated glass units. Certain example embodiments relate to corrugated spacers that extend around a periphery of an IG unit. In certain example embodiments, the spacer includes at least one structured concave cavity. When positioned in conjunction with a substrate, the cavity may be filled with a sealant. In certain example embodiments, the sealant may be a thermoplastic sealant. In certain example embodiments, another cavity may be provided that may accept a structural sealant. In certain example embodiments, the thickness of the corrugated faces of a spacer may be less than the thickness of the shoulders of spacer.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: July 15, 2014
    Assignee: Guardian Industries Corp.
    Inventor: David J. Cooper