Patents by Inventor David L. Hamilton
David L. 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).
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Patent number: 10109180Abstract: An apparatus includes a wireless transceiver and a processor. The wireless transceiver may be configured to communicate wirelessly via a wireless network with an annunciator remotely located from the apparatus and a plurality of call light boxes remotely located from the apparatus. The processor may be configured to (i) control reception of an alarm message from one or more of the call light boxes in response to an event, (ii) illuminate a hall indicator in response to reception of the alarm message, (iii) receive a cancellation message from at least one of (a) one or more of the call light boxes and (b) the annunciator that cancels the event, and (iv) extinguish the hall indicator in response to cancellation of the event. The hall indicator may change color over time until the event is canceled.Type: GrantFiled: October 17, 2017Date of Patent: October 23, 2018Inventor: David L. Hamilton
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Patent number: 10008103Abstract: An apparatus includes a wireless transceiver, a card reader and a processor. The wireless transceiver may be configured to communicate wirelessly with an annunciator, a hall light box and a server computer. The card reader may be configured to read identification numbers from cards. The processor may be configured to initiate transmission of an alarm message to the annunciator, the hall light box and the server computer in response to an event, illuminate an alarm indicator in response to the event, receive an authorized identification number that cancels the event from the card reader, initiate transmission of a cancellation message with the authorized identification number to the annunciator, the hall light box and the server computer in response to cancellation of the event, and extinguish the alarm indicator in response to cancellation of the event. The alarm indicator may changes color over time until the event is canceled.Type: GrantFiled: August 3, 2017Date of Patent: June 26, 2018Inventor: David L. Hamilton
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Patent number: 7847378Abstract: A wire bonder (900) with a rigid pedestal (902) having resilient inserts (920). A package (904) placed on the pedestal (902) contains an electrical device (906). The bond pads on the electrical device (906) are electrically connected to bond pads on the package (904) by a series of bond wires (908) through use of a well know bonding process. A vacuum source holds the package (904) against the pedestal (902) deforming the resilient strips (920) located in the rigid member (902) of the pedestal and ensuring good contact between the ground pads of the package (904) and conductive resilient members (920). The resilient members (920) are conductive and electrically connect the package grounds to a system ground (922).Type: GrantFiled: August 18, 2009Date of Patent: December 7, 2010Assignee: Texas Instruments IncorporatedInventors: Jeffrey W. Marsh, R. Tracy White, David L. Hamilton
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Publication number: 20090309211Abstract: A wire bonder (900) with a rigid pedestal (902) having resilient inserts (920). A package (904) placed on the pedestal (902) contains an electrical device (906). The bond pads on the electrical device (906) are electrically connected to bond pads on the package (904) by a series of bond wires (908) through use of a well know bonding process. A vacuum source holds the package (904) against the pedestal (902) deforming the resilient strips (920) located in the rigid member (902) of the pedestal and ensuring good contact between the ground pads of the package (904) and conductive resilient members (920). The resilient members (920) are conductive and electrically connect the package grounds to a system ground (922).Type: ApplicationFiled: August 18, 2009Publication date: December 17, 2009Applicant: Texas Instruments IncorporatedInventors: Jeffrey W. Marsh, R. Tracy White, David L. Hamilton
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Patent number: 7575147Abstract: A wire bonder (900) with a rigid pedestal (902) having resilient inserts (920). A package (904) placed on the pedestal (902) contains an electrical device (906). The bond pads on the electrical device (906) are electrically connected to bond pads on the package (904) by a series of bond wires (908) through use of a well know bonding process. A vacuum source holds the package (904) against the pedestal (902) deforming the resilient strips (920) located in the rigid member (902) of the pedestal and ensuring good contact between the ground pads of the package (904) and conductive resilient members (920). The resilient members (920) are conductive and electrically connect the package grounds to a system ground (922).Type: GrantFiled: May 8, 2007Date of Patent: August 18, 2009Assignee: Texas Instruments IncorporatedInventors: Jeffrey W. Marsh, R. Tracy White, David L. Hamilton
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Patent number: 7214607Abstract: A wire bonder (900) with a rigid pedestal (902) having resilient inserts (920). A package (904) placed on the pedestal (902) contains an electrical device (906). The bond pads on the electrical device (906) are electrically connected to bond pads on the package (904) by a series of bond wires (908) through use of a well know bonding process. A vacuum source holds the package (904) against the pedestal (902) deforming the resilient strips (920) located in the rigid member (902) of the pedestal and ensuring good contact between the ground pads of the package (904) and conductive resilient members (920). The resilient members (920) are conductive and electrically connect the package grounds to a system ground (922).Type: GrantFiled: April 1, 2005Date of Patent: May 8, 2007Assignee: Texas Instruments IncorporatedInventors: Jeffrey W. Marsh, R. Tracy White, David L. Hamilton
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Patent number: 6877650Abstract: A wire bonder (900) with a rigid pedestal (902) having resilient inserts (920). A package (904) placed on the pedestal (902) contains an electrical device (906). The bond pads on the electrical device (906) are electrically connected to bond pads on the package (904) by a series of bond wires (908) through use of a well know bonding process. A vacuum source holds the package (904) against the pedestal (902) deforming the resilient strips (920) located in the rigid member (902) of the pedestal and ensuring good contact between the ground pads of the package (904) and conductive resilient members (920). The resilient members (920) are conductive and electrically connect the package grounds to a system ground (922).Type: GrantFiled: December 28, 2000Date of Patent: April 12, 2005Assignee: Texas Instruments IncorporatedInventors: Jeffrey W. Marsh, R. Tracy White, David L. Hamilton
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Patent number: 6874534Abstract: A fluid pressure regulator assembly includes a body having a first passageway extending from a first port to a second port, and a second passageway extending from a third port to a fourth port. A pressure regulator is coupled between the second and third ports for controlling the pressure of fluid flowing from the second port to the third port. The regulator assembly further includes a bypass valve and the body includes a housing for the bypass valve. A third passageway extends from the first passageway to the housing, and a fourth passageway extends from the housing to the second passageway. The bypass valve controls flow from the first passageway through the third passageway and the fourth passageway to the second passageway in response to a bypass control signal coupled to the bypass valve.Type: GrantFiled: February 2, 2004Date of Patent: April 5, 2005Assignee: Illinois Tool Works Inc.Inventors: Michael J. Diana, David L. Hamilton
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Publication number: 20040154675Abstract: A fluid pressure regulator assembly includes a body having a first passageway extending from a first port to a second port, and a second passageway extending from a third port to a fourth port. A pressure regulator is coupled between the second and third ports for controlling the pressure of fluid flowing from the second port to the third port. The regulator assembly further includes a bypass valve and the body includes a housing for the bypass valve. A third passageway extends from the first passageway to the housing, and a fourth passageway extends from the housing to the second passageway. The bypass valve controls flow from the first passageway through the third passageway and the fourth passageway to the second passageway in response to a bypass control signal coupled to the bypass valve.Type: ApplicationFiled: February 2, 2004Publication date: August 12, 2004Inventors: Michael J. Diana, David L. Hamilton
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Publication number: 20030079786Abstract: A fluid pressure regulator assembly includes a body having a first passageway extending from a first port to a second port, and a second passageway extending from a third port to a fourth port. A pressure regulator is coupled between the second and third ports for controlling the pressure of fluid flowing from the second port to the third port. The regulator assembly further includes a bypass valve and the body includes a housing for the bypass valve. A third passageway extends from the first passageway to the housing, and a fourth passageway extends from the housing to the second passageway. The bypass valve controls flow from the first passageway through the third passageway and the fourth passageway to the second passageway in response to a bypass control signal coupled to the bypass valve.Type: ApplicationFiled: October 30, 2001Publication date: May 1, 2003Inventors: Michael J. Diana, David L. Hamilton
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Publication number: 20020048925Abstract: A wire bonder (900) with a rigid pedestal (902) having resilient inserts (920). A package (904) placed on the pedestal (902) contains an electrical device (906). The bond pads on the electrical device (906) are electrically connected to bond pads on the package (904) by a series of bond wires (908) through use of a well know bonding process. A vacuum source holds the package (904) against the pedestal (902) deforming the resilient strips (920) located in the rigid member (902) of the pedestal and ensuring good contact between the ground pads of the package (904) and conductive resilient members (920). The resilient members (920) are conductive and electrically connect the package grounds to a system ground (922).Type: ApplicationFiled: December 28, 2000Publication date: April 25, 2002Inventors: Jeffrey W. Marsh, R. Tracy White, David L. Hamilton
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Patent number: 5908083Abstract: Improved roofworker support apparatus for placement on slanted roof structures with varying peak angles, and including a pair of peak-adjustable elongate assemblies independently deployable on the roof structure in spaced substantially parallel positions extending up the roof, each including and at least one elongate crosspiece removably supportable across the elongate assemblies. The elongate assemblies include an elongate roof-contact member, and overpeak member, an adjustment member between the overpeak member and the roof-contact member and adjustable to set the elongate roof-contact member and overpeak member at desired angle to accommodate roof peak angles, and at least one crosspiece-support member affixed to the elongate roof-contact member. Highly preferred embodiments include certain extension members.Type: GrantFiled: April 13, 1998Date of Patent: June 1, 1999Inventor: David L. Hamilton
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Patent number: 5413283Abstract: A quick disconnect for a coating material dispensing device includes a passageway through which coating material is supplied from a supply conduit for dispensing. The supply conduit includes a first region along its length provided with a surrounding O-ring. The passageway includes a sidewall providing a second region along its length in which the first region resides when the supply conduit is positioned in a use orientation in the dispensing device. The second region compresses the O-ring into fluid-tight sealing orientation against the passageway sidewall in the second region when the supply conduit is inserted into the passageway into its use orientation.Type: GrantFiled: December 22, 1993Date of Patent: May 9, 1995Assignee: Ransburg CorporationInventors: James J. Gimple, David L. Hamilton, Daniel C. Hughey, Chris M. Jamison, David M. Seitz
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Patent number: 5411210Abstract: A device for atomizing and dispensing a first liquid coating material onto a first group of one or more articles to be coated by the first coating material and then for dispensing a second liquid coating material onto a second group of one or more articles to be coated by the second coating material. The device includes at least one atomizer providing a first flow rate of the first and second coating materials required for high quality atomization of the first and second coating materials, and a second outlet providing a second and substantially greater flow rate of the first and second coating materials and lower quality atomization than the first atomizer, or no atomization. A first conduit couples the second outlet to the first atomizer. A second conduit couples the first atomizer to a source of fluid to be dispensed. A valve controls the flow of liquid to the second outlet.Type: GrantFiled: June 5, 1992Date of Patent: May 2, 1995Assignee: Ransburg CorporationInventors: James J. Gimple, David L. Hamilton, Daniel C. Hughey, Chris M. Jamison, David M. Seitz
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Patent number: D918152Type: GrantFiled: August 10, 2018Date of Patent: May 4, 2021Assignee: Hamilton Smart LLCInventor: David L. Hamilton