Patents by Inventor Donald E. Williamson
Donald E. Williamson 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: 10641540Abstract: An anti-condensing system includes a control panel configured to electrically couple between a power source and a temperature regulating display unit. The control panel includes a housing defining an interior cavity, a door selectively repositionable to facilitate accessing the interior cavity of the housing, and a circuitry assembly disposed within the interior cavity. The circuitry assembly includes a relay configured to couple to a heating element of the temperature regulating display unit, an overcurrent protection breaker coupled to the relay and directly integrated into the control panel such that the overcurrent protection device can be locked out at the control panel, and a control circuit coupled to the relay. The control circuit is configured to actively control the relay to prevent condensation from forming on the temperature regulating display unit.Type: GrantFiled: September 28, 2018Date of Patent: May 5, 2020Assignee: Hill Phoenix, Inc.Inventor: Donald E. Williamson
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Patent number: 10421656Abstract: A fuel dispensing system includes a plurality of fuel dispensers, at least one tank configured to store fuel, at least one pump configured to pump the fuel from the tank to at least one of the fuel dispensers, and a fuel panel assembly configured to supply electric power to each of the fuel dispensers. The fuel panel assembly includes a plurality of overcurrent protection breakers, each overcurrent protection breaker provided for one of the fuel dispensers. The fuel panel assembly further includes a plurality of disconnect devices, each disconnect device provided for one of the fuel dispensers. The fuel panel assembly is provided within a single control panel enclosure.Type: GrantFiled: July 25, 2017Date of Patent: September 24, 2019Assignee: Hill Phoenix, Inc.Inventor: Donald E. Williamson
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Publication number: 20190120537Abstract: An anti-condensing system includes a control panel configured to electrically couple between a power source and a temperature regulating display unit. The control panel includes a housing defining an interior cavity, a door selectively repositionable to facilitate accessing the interior cavity of the housing, and a circuitry assembly disposed within the interior cavity. The circuitry assembly includes a relay configured to couple to a heating element of the temperature regulating display unit, an overcurrent protection breaker coupled to the relay and directly integrated into the control panel such that the overcurrent protection device can be locked out at the control panel, and a control circuit coupled to the relay. The control circuit is configured to actively control the relay to prevent condensation from forming on the temperature regulating display unit.Type: ApplicationFiled: September 28, 2018Publication date: April 25, 2019Applicant: Hill Phoenix, Inc.Inventor: Donald E. Williamson
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Publication number: 20190031495Abstract: A fuel dispensing system includes a plurality of fuel dispensers, at least one tank configured to store fuel, at least one pump configured to pump the fuel from the tank to at least one of the fuel dispensers, and a fuel panel assembly configured to supply electric power to each of the fuel dispensers. The fuel panel assembly includes a plurality of overcurrent protection breakers, each overcurrent protection breaker provided for one of the fuel dispensers. The fuel panel assembly further includes a plurality of disconnect devices, each disconnect device provided for one of the fuel dispensers. The fuel panel assembly is provided within a single control panel enclosure.Type: ApplicationFiled: July 25, 2017Publication date: January 31, 2019Applicant: Hill Phoenix, Inc.Inventor: Donald E. Williamson
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Patent number: 6820640Abstract: A pressure control apparatus for use in a bed including a pressurized air source, an inflatable air sack, and an independently inflatable cell located adjacent the inflatable air sack. A controller is operable to regulate the pressure in the air sack and to independently alternately pressurize and vent the inflatable cell at a selected frequency.Type: GrantFiled: July 8, 2002Date of Patent: November 23, 2004Assignee: Hill-Rom Services, Inc.Inventors: Barry D. Hand, Robert C. Novack, Donald E. Williamson, James R. Stolpmann, Kenith W. Chambers
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Publication number: 20020195144Abstract: A pressure control apparatus for use in a bed including a pressurized air source, an inflatable air sack, and an independently inflatable cell located adjacent the inflatable air sack. A controller is operable to regulate the pressure in the air sack and to independently alternately pressurize and vent the inflatable cell at a selected frequency.Type: ApplicationFiled: July 8, 2002Publication date: December 26, 2002Inventors: Barry D. Hand, Robert C. Novack, Donald E. Williamson, James R. Stolpmann, Kenith W. Chambers
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Patent number: 6415814Abstract: A pressure control apparatus includes a valve inlet configured to receive pressurized air from the pressurized air source, a valve stem coupled to the valve inlet and configured to engage the port of the manifold to form an airtight connection with the manifold and receive the pressurized air from the pressurized air source via the manifold, a valve outlet configured to permit exit of said pressurized air to the at least one air sack, a valve in fluid communication between said valve inlet and said valve outlet and configured to regulate flow of said pressurized air between said valve inlet and said valve outlet, and a controller coupled to said valve and configured to control said valve to regulate flow of said pressurized air through said valve.Type: GrantFiled: August 7, 2000Date of Patent: July 9, 2002Assignee: Hill-Rom Services, Inc.Inventors: Barry D. Hand, Robert C. Novack, Donald E. Williamson, James R. Stolpmann, Kenith W. Chambers
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Patent number: 6098222Abstract: The present invention relates to a vibratory patient support system for providing therapeutic vibrational action or forces to a patient suffering from a respiratory ailment. The vibratory patient support system includes a rigid support frame such as a bed frame, a plurality of inflatable sacs supported upon the support frame with each sac having an upper surface so that the plurality of sacs forms a patient support surface. The inflatable sacs are pressurized and maintained at a predetermined pressure. This predetermined pressure may be a patient height and weight specific pressure profile. A vibrating component is provided separate from the apparatus for pressurizing and maintaining the air sacs at the predetermined pressure. The vibrating component vibrates at least a portion of the patient support surface at a predetermined frequency.Type: GrantFiled: February 21, 1997Date of Patent: August 8, 2000Assignee: Hill-Rom Company, Inc.Inventors: Barry D. Hand, Robert C. Novack, Donald E. Williamson, James R. Stolpmann, Kenith W. Chambers
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Patent number: 5606754Abstract: The present invention relates to a vibratory patient support system for providing therapeutic vibrational action or forces to a patient suffering from a respiratory ailment. The vibratory patient support system includes a rigid support frame such as a bed frame, a plurality of inflatable sacs supported upon the support frame with each sac having an upper surface so that the plurality of sacs forms a patient support surface. The inflatable sacs are pressurized and maintained at a predetermined pressure. This predetermined pressure may be a patient height and weight specific pressure profile. A vibrating component is provided separate from the apparatus for pressurizing and maintaining the air sacs at the predetermined pressure. The vibrating component vibrates at least a portion of the patient support surface at a predetermined frequency.Type: GrantFiled: July 17, 1995Date of Patent: March 4, 1997Assignee: SSI Medical Services, Inc.Inventors: Barry D. Hand, Robert C. Novack, Donald E. Williamson, James R. Stolpmann, Kenith W. Chambers
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Patent number: 3930493Abstract: The linear flow rate of a liquid containing dissolved oxygen, such as blood, can be determined by means of an electrode assembly having exposed to the liquid a relatively large polarographically active cathode and spaced therefrom a reference anode. With an applied energizing voltage of about 0.4-0.9 volts a current plateau is reached which is proportional to fluid flow rate. As the device is also sensitive to oxygen content, compensation can be measured by providing on the assembly an oxygen sensing membrane covered polarographic electrode pair of the Clark type.Type: GrantFiled: October 7, 1974Date of Patent: January 6, 1976Assignee: Cordis CorporationInventor: Donald E. Williamson
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Patent number: D943563Type: GrantFiled: May 10, 2021Date of Patent: February 15, 2022Assignee: Hill Phoenix, Inc.Inventors: Donald E. Williamson, Michael Hines
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Patent number: D958129Type: GrantFiled: May 10, 2021Date of Patent: July 19, 2022Assignee: Hill Phoenix, Inc.Inventors: Donald E. Williamson, Michael Hines