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).
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Patent number: 10753170Abstract: 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: GrantFiled: April 13, 2016Date of Patent: August 25, 2020Assignee: Oceaneering International, Inc.Inventors: Thomas H. Nguyen, Forrest Earl Shanks, II, Douglas Allen Watkins, William David Wightman
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Patent number: 10430526Abstract: 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: GrantFiled: July 10, 2014Date of Patent: October 1, 2019Assignee: 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
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Patent number: 10288334Abstract: 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: GrantFiled: August 5, 2015Date of Patent: May 14, 2019Assignee: XDX Global, LLCInventor: David A. Wightman
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Patent number: 10145493Abstract: 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: GrantFiled: August 19, 2014Date of Patent: December 4, 2018Assignee: Oceaneering International, Inc.Inventors: Forrest Earl Shanks, II, William David Wightman
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Patent number: 10060662Abstract: 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: GrantFiled: November 29, 2016Date of Patent: August 28, 2018Assignee: XDX Global, LLCInventor: David Wightman
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Patent number: 9879899Abstract: 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: GrantFiled: April 17, 2015Date of Patent: January 30, 2018Assignee: XDX Global, LLCInventor: David Wightman
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Patent number: 9836557Abstract: 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: GrantFiled: July 10, 2014Date of Patent: December 5, 2017Assignee: 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
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Publication number: 20170074565Abstract: 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: ApplicationFiled: November 29, 2016Publication date: March 16, 2017Inventor: David Wightman
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Publication number: 20160298416Abstract: 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: ApplicationFiled: April 13, 2016Publication date: October 13, 2016Applicant: Oceaneering International, Inc.Inventors: Thomas H. Nguyen, Forrest Earl Shanks, II, Douglas Allen Watkins, William David Wightman
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Publication number: 20160187040Abstract: 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: ApplicationFiled: August 5, 2015Publication date: June 30, 2016Applicant: XDX Global, LLCInventor: David A. Wightman
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Publication number: 20160010913Abstract: 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: ApplicationFiled: April 17, 2015Publication date: January 14, 2016Inventor: David Wightman
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Patent number: 9127870Abstract: 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: GrantFiled: October 28, 2010Date of Patent: September 8, 2015Assignee: XDX Global, LLCInventor: David Wightman
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Publication number: 20150234945Abstract: 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: ApplicationFiled: July 10, 2014Publication date: August 20, 2015Inventors: Guillaume Marceau, David Wightman Swartz, Ritwik Raj, Jacob Miles, Carl Styan Sterner, Jeremy Gayed, Varun Singh, Mads Jensen, Alex Tollefsen, Katrina Schoen
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Publication number: 20150234944Abstract: 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: ApplicationFiled: July 10, 2014Publication date: August 20, 2015Inventors: 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
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Patent number: 9057547Abstract: 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: GrantFiled: November 20, 2012Date of Patent: June 16, 2015Assignee: XDX Global, LLCInventor: David Wightman
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Publication number: 20150048611Abstract: 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: ApplicationFiled: August 19, 2014Publication date: February 19, 2015Applicant: OCEANEERING INTERNATIONAL, INC.Inventors: Forrest Earl Shanks II, William David Wightman
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Publication number: 20140365182Abstract: 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: ApplicationFiled: August 20, 2013Publication date: December 11, 2014Applicant: 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
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Publication number: 20130174589Abstract: 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: ApplicationFiled: November 20, 2012Publication date: July 11, 2013Inventor: David Wightman
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Publication number: 20120173209Abstract: 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: ApplicationFiled: February 6, 2012Publication date: July 5, 2012Inventors: Peter Leonard Krebs, Mads Næstholt Jensen, Varun Singh, Jacob Miles, Jeremy Gayed, David Wightman Swartz
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Publication number: 20110126560Abstract: 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: ApplicationFiled: October 28, 2010Publication date: June 2, 2011Applicant: XDX INNOVATIVE REFRIGERATION, LLCInventor: David Wightman