Patents by Inventor David Wightman

David Wightman 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: 10753170
    Abstract: A composite circular connector seal, or an assembly comprising a plurality of such seals, may be engineered to seal across a predetermined tolerance band for such seals by using two substantially circular seal elements sized to slidingly fit about a tubular that has a positive and negative outer diameter tolerance range, where each seal element is terminated at one circumferential edge with a packer cap, and a core element disposed intermediate the two substantially circular seal elements at their respective non-packer cap terminated circumferential edges. The two substantially circular seal elements comprise an organic thermoplastic polymer and the core seal element, which typically comprises a synthetic rubber, is also typically molded to the two seal elements at their respective non-packer cap terminated circumferential edges.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: August 25, 2020
    Assignee: Oceaneering International, Inc.
    Inventors: Thomas H. Nguyen, Forrest Earl Shanks, II, Douglas Allen Watkins, William David Wightman
  • Patent number: 10430526
    Abstract: Various embodiments provide systems and methods enabling a user to receive feedback regarding a computer-implemented design of an architectural structure as the user is designing or otherwise modifying the computer-implemented design using a computer-aided design (CAD) software tool. The feedback (hereafter also referred to as “design feedback”) may provide the user with useful analysis information regarding the architectural structure's predicted characteristics (e.g., operational performance, resource consumption, cost, etc.) based on the current state of the computer-implemented design. In particular, heating and cooling loads associated with the computer-implemented design of the architectural structure can be visually displayed to the user in real or near-real-time along with the relationships to contributing factors that impact the heating and cooling loads.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: October 1, 2019
    Assignee: Safaira, Inc.
    Inventors: Guillaume Marceau, David Wightman Swartz, Ritwik Raj, Jacob Miles, Carl Styan Sterner, Jeremy Gayed, Varun Singh, Mads Naestholt Jensen, Alex Jones Tollefsen, Katrina Leigh Schoen
  • Patent number: 10288334
    Abstract: Surged vapor compression heat transfer systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator after the initial cool-down of an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 14, 2019
    Assignee: XDX Global, LLC
    Inventor: David A. Wightman
  • Patent number: 10145493
    Abstract: In general, a connector designed to slip on a tubular, or an extension thereof, may be locked onto the tubular and a seal created around the tubular to keep pressure trapped inside the tubular. Generally, the connector is slipped over and makes contact with the tubular via a sliding sleeve seal cover. In certain embodiments, when sufficient force is placed on the connector, one or more shear pins, which are holding the sleeve, are sheared, allowing the connector to be lowered onto the tubular and the seal to make contact with the tubular. The connector may be locked onto the tubular by means of a one piece slip energized by a cam typically held in place mechanically by one or more ratchets.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: December 4, 2018
    Assignee: Oceaneering International, Inc.
    Inventors: Forrest Earl Shanks, II, William David Wightman
  • Patent number: 10060662
    Abstract: Surged heat pump systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator during an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. The temperature of the vapor phase refrigerant is raised in relation to the liquid phase with heat from the liquid by the phase separation, not by the introduction of energy from another source. The surged heat pump systems may operate in highest heat transfer efficiency mode and/or in one or more higher temperature modes.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: August 28, 2018
    Assignee: XDX Global, LLC
    Inventor: David Wightman
  • Patent number: 9879899
    Abstract: Surged heat pump systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator during an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. The temperature of the vapor phase refrigerant is raised in relation to the liquid phase with heat from the liquid by the phase separation, not by the introduction of energy from another source. The surged heat pump systems may operate in highest heat transfer efficiency mode and/or in one or more higher temperature modes.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: January 30, 2018
    Assignee: XDX Global, LLC
    Inventor: David Wightman
  • Patent number: 9836557
    Abstract: Various embodiments provide systems and methods enabling a user to receive feedback regarding a computer-implemented design of an architectural structure as the user is designing or otherwise modifying the computer-implemented design using a computer-aided design (CAD) software tool. The feedback (hereafter also referred to as “design feedback”) may provide the user with useful analysis information regarding the architectural structure's predicted characteristics (e.g., operational performance, resource consumption, cost, etc.) based on the current state of the computer-implemented design. In particular, daylighting analyses pertinent to the computer-implemented design of the architectural structure can be visually displayed to the user in real or near-real-time.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: December 5, 2017
    Assignee: Sefaira, Inc.
    Inventors: Guillaume Marceau, David Wightman Swartz, Ritwik Raj, Jacob Miles, Carl Styan Sterner, Jeremy Gayed, Varun Singh, Mads Jensen, Alex Tollefsen, Katrina Schoen
  • Publication number: 20170074565
    Abstract: Surged heat pump systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator during an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. The temperature of the vapor phase refrigerant is raised in relation to the liquid phase with heat from the liquid by the phase separation, not by the introduction of energy from another source. The surged heat pump systems may operate in highest heat transfer efficiency mode and/or in one or more higher temperature modes.
    Type: Application
    Filed: November 29, 2016
    Publication date: March 16, 2017
    Inventor: David Wightman
  • Publication number: 20160298416
    Abstract: A composite circular connector seal, or an assembly comprising a plurality of such seals, may be engineered to seal across a predetermined tolerance band for such seals by using two substantially circular seal elements sized to slidingly fit about a tubular that has a positive and negative outer diameter tolerance range, where each seal element is terminated at one circumferential edge with a packer cap, and a core element disposed intermediate the two substantially circular seal elements at their respective non-packer cap terminated circumferential edges. The two substantially circular seal elements comprise an organic thermoplastic polymer and the core seal element, which typically comprises a synthetic rubber, is also typically molded to the two seal elements at their respective non-packer cap terminated circumferential edges.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 13, 2016
    Applicant: Oceaneering International, Inc.
    Inventors: Thomas H. Nguyen, Forrest Earl Shanks, II, Douglas Allen Watkins, William David Wightman
  • Publication number: 20160187040
    Abstract: Surged vapor compression heat transfer systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator after the initial cool-down of an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator.
    Type: Application
    Filed: August 5, 2015
    Publication date: June 30, 2016
    Applicant: XDX Global, LLC
    Inventor: David A. Wightman
  • Publication number: 20160010913
    Abstract: Surged heat pump systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator during an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. The temperature of the vapor phase refrigerant is raised in relation to the liquid phase with heat from the liquid by the phase separation, not by the introduction of energy from another source. The surged heat pump systems may operate in highest heat transfer efficiency mode and/or in one or more higher temperature modes.
    Type: Application
    Filed: April 17, 2015
    Publication date: January 14, 2016
    Inventor: David Wightman
  • Patent number: 9127870
    Abstract: Surged vapor compression heat transfer systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator after the initial cool-down of an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: September 8, 2015
    Assignee: XDX Global, LLC
    Inventor: David Wightman
  • Publication number: 20150234944
    Abstract: Various embodiments provide systems and methods enabling a user to receive feedback regarding a computer-implemented design of an architectural structure as the user is designing or otherwise modifying the computer-implemented design using a computer-aided design (CAD) software tool. The feedback (hereafter also referred to as “design feedback”) may provide the user with useful analysis information regarding the architectural structure's predicted characteristics (e.g., operational performance, resource consumption, cost, etc.) based on the current state of the computer-implemented design. In particular, heating and cooling loads associated with the computer-implemented design of the architectural structure can be visually displayed to the user in real or near-real-time along with the relationships to contributing factors that impact the heating and cooling loads.
    Type: Application
    Filed: July 10, 2014
    Publication date: August 20, 2015
    Inventors: Gilllaume Marceau, David Wightman Swartz, Ritwik Raj, Jacob Miles, Carl Styan Sterner, Jeremy Gayed, Varun Singh, Mads Naestholt Jensen, Alex Jones Tollefsen, Katrina Leigh Schoen
  • Publication number: 20150234945
    Abstract: Various embodiments provide systems and methods enabling a user to receive feedback regarding a computer-implemented design of an architectural structure as the user is designing or otherwise modifying the computer-implemented design using a computer-aided design (CAD) software tool. The feedback (hereafter also referred to as “design feedback”) may provide the user with useful analysis information regarding the architectural structure's predicted characteristics (e.g., operational performance, resource consumption, cost, etc.) based on the current state of the computer-implemented design. In particular, daylighting analyses pertinent to the computer-implemented design of the architectural structure can be visually displayed to the user in real or near-real-time.
    Type: Application
    Filed: July 10, 2014
    Publication date: August 20, 2015
    Inventors: Guillaume Marceau, David Wightman Swartz, Ritwik Raj, Jacob Miles, Carl Styan Sterner, Jeremy Gayed, Varun Singh, Mads Jensen, Alex Tollefsen, Katrina Schoen
  • Patent number: 9057547
    Abstract: Surged heat pump systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator during an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. The temperature of the vapor phase refrigerant is raised in relation to the liquid phase with heat from the liquid by the phase separation, not by the introduction of energy from another source. The surged heat pump systems may operate in highest heat transfer efficiency mode and/or in one or more higher temperature modes.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: June 16, 2015
    Assignee: XDX Global, LLC
    Inventor: David Wightman
  • Publication number: 20150048611
    Abstract: In general, a connector designed to slip on a tubular, or an extension thereof, may be locked onto the tubular and a seal created around the tubular to keep pressure trapped inside the tubular. Generally, the connector is slipped over and makes contact with the tubular via a sliding sleeve seal cover. In certain embodiments, when sufficient force is placed on the connector, one or more shear pins, which are holding the sleeve, are sheared, allowing the connector to be lowered onto the tubular and the seal to make contact with the tubular. The connector may be locked onto the tubular by means of a one piece slip energized by a cam typically held in place mechanically by one or more ratchets.
    Type: Application
    Filed: August 19, 2014
    Publication date: February 19, 2015
    Applicant: OCEANEERING INTERNATIONAL, INC.
    Inventors: Forrest Earl Shanks II, William David Wightman
  • Publication number: 20140365182
    Abstract: Various embodiments provide systems and methods enable a user to receive feedback regarding a computer-implemented design of an architectural structure as the user is designing or otherwise modifying the computer-implemented design using a computer-aided design (CAD) software tool. The feedback (hereafter also referred to as “design feedback”) may provide the user with useful analysis information regarding the architectural structure's predicted characteristics (e.g., operational performance, resource consumption, cost, etc.) based on the current state of the computer-implemented design. As the user performs one or more actions on the computer-implemented design model (e.g., through the CAD software tool), particularly with respect to the geometry or texture of the computer-implemented design model, systems and methods can provide the impact of those actions, possibly at or near the time the actions were executed (e.g., at or near real-time).
    Type: Application
    Filed: August 20, 2013
    Publication date: December 11, 2014
    Applicant: Sefaira, Inc.
    Inventors: Guillaume Marceau, David Wightman Swartz, Ritwik Raj, Jacob Miles, Carl Styan Sterner, Jeremy Gayed, Xiaomin Chen, Jonathan Taylor Apple, Jeffrey Stephen Csicsek, Varun Singh, Mads Naestholt Jensen, Alexander Marshall
  • Publication number: 20130174589
    Abstract: Surged heat pump systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator during an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. The temperature of the vapor phase refrigerant is raised in relation to the liquid phase with heat from the liquid by the phase separation, not by the introduction of energy from another source. The surged heat pump systems may operate in highest heat transfer efficiency mode and/or in one or more higher temperature modes.
    Type: Application
    Filed: November 20, 2012
    Publication date: July 11, 2013
    Inventor: David Wightman
  • Publication number: 20120173209
    Abstract: According to various embodiments of the invention, systems and methods are provided for parametrically analyzing architectural structures. Such embodiments may be utilized by architects and engineers as tools that assist in designing architectural structures that achieve specific design goals, such as those related to sustainability. For example, an embodiment may comprise a system that: (i) provides a sustainability on an architectural structure design created using a computer-assisted design (CAD) tool, and then (ii) applies a design option with a parametric value to that design to determine one or more improvements that provide a desired sustainability. Various embodiments may be accessed through a web-based platform, which provides a user with easier access and better collaboration between and among design team members.
    Type: Application
    Filed: February 6, 2012
    Publication date: July 5, 2012
    Inventors: Peter Leonard Krebs, Mads Næstholt Jensen, Varun Singh, Jacob Miles, Jeremy Gayed, David Wightman Swartz
  • Publication number: 20110126560
    Abstract: Surged vapor compression heat transfer systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator after the initial cool-down of an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator.
    Type: Application
    Filed: October 28, 2010
    Publication date: June 2, 2011
    Applicant: XDX INNOVATIVE REFRIGERATION, LLC
    Inventor: David Wightman