Patents by Inventor Thomas J. Hamilton
Thomas J. Hamilton 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: 8119974Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to store a plurality of memory presets including at least one setting corresponding to the operation of the shutter assembly. At least two of the plurality of memory presets are individually configured for a specific type of welding.Type: GrantFiled: July 12, 2010Date of Patent: February 21, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Thomas J. Hamilton, Barry D. Scott
-
Publication number: 20110122473Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to store a plurality of memory presets including at least one setting corresponding to the operation of the shutter assembly. At least two of the plurality of memory presets are individually configured for a specific type of welding.Type: ApplicationFiled: July 12, 2010Publication date: May 26, 2011Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 7868278Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generator, and a negative voltage generator. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The positive and negative voltage generators output the dark state drive signal to the shutter assembly to switch the shutter assembly from the light state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.Type: GrantFiled: November 3, 2008Date of Patent: January 11, 2011Assignee: Jackson Products, Inc.Inventor: Thomas J. Hamilton
-
Patent number: 7755019Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to store a plurality of memory presets including at least one setting corresponding to the operation of the shutter assembly. At least two of the plurality of memory presets are individually configured for a specific type of welding. In another embodiment, an auto darkening eye protection device is provided, the device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to monitor and store at least one parameter corresponding to the operation of the auto darkening eye protection device.Type: GrantFiled: June 18, 2007Date of Patent: July 13, 2010Assignee: Jackson Products, Inc.Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 7750283Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to store a plurality of memory presets including at least one setting corresponding to the operation of the shutter assembly. At least two of the plurality of memory presets are individually configured for a specific type of welding. In another embodiment, an auto darkening eye protection device is provided, the device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to monitor and store at least one parameter corresponding to the operation of the auto darkening eye protection device.Type: GrantFiled: June 13, 2008Date of Patent: July 6, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 7659495Abstract: An auto darkening eye protection device including a shutter assembly, a control circuit, and a power supply. The control circuit includes a sensing circuit for sensing the occurrence of welding, and a delivery circuit to provide signals to the shutter assembly to cause the shutter assembly to transition to the dark state. The power supply supplying power to the control circuit and the delivery circuit. The power supply including a power regulation circuit, and a solar power supply supplying electrical power to the power regulation circuit and the sensing circuit. The power regulation circuit limiting the voltage of the solar power supply to a predetermined voltage to provide a stable reference voltage.Type: GrantFiled: February 19, 2007Date of Patent: February 9, 2010Inventor: Thomas J. Hamilton
-
Publication number: 20090276931Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generator, and a negative voltage generator. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The positive and negative voltage generators output the dark state drive signal to the shutter assembly to switch the shutter assembly from the light state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.Type: ApplicationFiled: November 3, 2008Publication date: November 12, 2009Inventor: Thomas J. Hamilton
-
Publication number: 20080308714Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to store a plurality of memory presets including at least one setting corresponding to the operation of the shutter assembly. At least two of the plurality of memory presets are individually configured for a specific type of welding. In another embodiment, an auto darkening eye protection device is provided, the device comprising a shutter assembly and a control circuit in electrical communication with the shutter assembly. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a microcontroller programmed to monitor and store at least one parameter corresponding to the operation of the auto darkening eye protection device.Type: ApplicationFiled: June 13, 2008Publication date: December 18, 2008Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 7446292Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generator, and a negative voltage generator. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The positive and negative voltage generators output the dark state drive signal to the shutter assembly to switch the shutter assembly from the light state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.Type: GrantFiled: April 10, 2006Date of Patent: November 4, 2008Assignee: Jackson Products, Inc.Inventor: Thomas J. Hamilton
-
Patent number: 7232988Abstract: An auto darkening eye protection device comprising a shutter assembly adjustable between a clear state and a dark state and a control circuit. The control circuit is provided with a microcontroller, a delivery circuit, a sensing circuit and a weld detect circuit. The microcontroller is switchable between a sleep mode and a wake-up mode. The delivery circuit outputs a dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement of the delivery circuit. The sensing circuit senses the occurrence of a welding arc and provides an output indicative of the occurrence of the welding arc. The weld detect circuit receives the output of the sensing circuit.Type: GrantFiled: May 5, 2005Date of Patent: June 19, 2007Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 7180047Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, and a delivery circuit. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The delivery circuit outputs the dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.Type: GrantFiled: January 10, 2005Date of Patent: February 20, 2007Assignee: Jackson Products, Inc.Inventor: Thomas J. Hamilton
-
Patent number: 7026593Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generator, and a negative voltage generator. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The positive and negative voltage generators output the dark state drive signal to the shutter assembly to switch the shutter assembly from the light state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.Type: GrantFiled: August 11, 2004Date of Patent: April 11, 2006Assignee: Jackson Products, Inc.Inventor: Thomas J. Hamilton
-
Patent number: 6884987Abstract: An auto darkening eye protection device comprising a shutter assembly adjustable between a clear state and a dark state and a control circuit. The control circuit is provided with a microcontroller, a delivery circuit, a sensing circuit and a weld detect circuit. The microcontroller is switchable between a sleep mode and a wake-up mode. The delivery circuit outputs a dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement of the delivery circuit. The sensing circuit senses the occurrence of a welding arc and provides an output indicative of the occurrence of the welding arc. The weld detect circuit receives the output of the sensing circuit.Type: GrantFiled: December 19, 2003Date of Patent: April 26, 2005Assignee: Jackson Products, Inc.Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 6881939Abstract: An auto darkening eye protection device comprising a shutter assembly adjustable between a clear state and a dark state and a control circuit. The control circuit is provided with a microcontroller, a delivery circuit, a sensing circuit and a weld detect circuit. The microcontroller is switchable between a sleep mode and a wake-up mode. The delivery circuit outputs a dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement of the delivery circuit. The sensing circuit senses the occurrence of a welding arc and provides an output indicative of the occurrence of the welding arc. The weld detect circuit receives the output of the sensing circuit.Type: GrantFiled: May 3, 2002Date of Patent: April 19, 2005Assignee: Jackson Products, Inc.Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 6841772Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, and a delivery circuit. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The delivery circuit outputs the dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.Type: GrantFiled: May 3, 2002Date of Patent: January 11, 2005Assignee: Jackson Products, Inc.Inventor: Thomas J. Hamilton
-
Publication number: 20040178326Abstract: An auto darkening eye protection device comprising a shutter assembly adjustable between a clear state and a dark state and a control circuit. The control circuit is provided with a microcontroller, a delivery circuit, a sensing circuit and a weld detect circuit. The microcontroller is switchable between a sleep mode and a wake-up mode. The delivery circuit outputs a dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement of the delivery circuit. The sensing circuit senses the occurrence of a welding arc and provides an output indicative of the occurrence of the welding arc. The weld detect circuit receives the output of the sensing circuit.Type: ApplicationFiled: December 19, 2003Publication date: September 16, 2004Inventors: Thomas J. Hamilton, Barry D. Scott
-
Patent number: 6070264Abstract: A welding helmet includes a shutter assembly with an electronically controlled liquid crystal shutter in a compact housing for physical mounting near the face area of a protective shell. The electronic controls provide for the customary auto-darkening function as well as two user selectable fixed shade settings which permit the user to fix the shutter shade in one of a plurality of preselected and factory set shade settings. When fixed at a shade setting, the user is given a visual indication that the helmet is not in an auto-darkening mode. The housing allows for two PC boards to be mounted above and below the optical shutter, with a flexible cable interconnecting the two PC boards so as to not interfere with or obscure the user's vision. The controls are all single function, readily accessible and continuous so that multiple operation of any one control does not switch the associated function off, allowing a user to continuously operate any control repeatedly to ensure its selection.Type: GrantFiled: April 9, 1999Date of Patent: June 6, 2000Assignee: Jackson Products, Inc.Inventors: Thomas J. Hamilton, Steven F. Kickham, Jerry Charles Cole, David Allen Shamery
-
Patent number: 5356251Abstract: A collapsible void filling apparatus (10) with at least one multiple elongate hollow rectilinear member (14, 16, 74 80) arranged in side by side relationship to form a body (21) for insertion into a void (24) between stacks of cargo (12) in a freight vehicle to prevent shifting of the cargo with overlapping, reinforced, cross support walls (23, 30, 31), a locking member (50) insertable from the end of one of the hollow members to a locking position which prevents collapse of the void filler body (21) during handling while allowing a clear view through the hollow member and which also functions as a handle for use in inserting the void filling apparatus (10, 10', 10", 10'") into the void (24) and tab members (56, 58) for holding the locking member (50) in the locking position (FIG. 1).Type: GrantFiled: November 18, 1992Date of Patent: October 18, 1994Assignee: Corrugated Systems, Inc.Inventors: Robert W. Sisco, Thomas J. Hamilton
-
Patent number: 4516891Abstract: An expansible cellular void filler for dunnage uses is formed of a stack of flat, bendable strips, each except the top and bottom of which is secured at alternating longitudinally spaced positions to an overlying strip and to a subjacent strip, the secured positions being aligned in rows in a direction perpendicular to the planes of the flat strips, the spacing between at least two such rows being less than the spacing between other rows, so that when the strips are moved apart and bend to form cells, the cell sidewalls formed by the portions of the strips which extend between said two rows move toward a straight planar relationship prior to the sidewalls of other cells, and limit the expansion of the filler.Type: GrantFiled: June 30, 1982Date of Patent: May 14, 1985Assignee: Down River International, Inc.Inventors: Paul A. Wnuk, Thomas J. Hamilton, Anthony Trassare, Jr., Michael J. Oliver