Patents by Inventor Lisa C. Marron
Lisa C. Marron 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: 9562560Abstract: A tilt and lock apparatus that includes a tilt servomechanism, a spiral torsion spring, a lock wheel, and a lock hook is described herein. The spiral torsion spring is mechanically coupled to the tilt servomechanism and the lock wheel (which includes an opening). When a shaft is positioned through the opening, rotation of the lock wheel is in unison with rotation of the shaft. An external surface of the lock wheel includes one or more grooves. The lock hook includes a head that engages and disengages the grooves. The lock wheel is stationary when the head engages one of the grooves and is rotatable when the head disengages the grooves. The head and the grooves are geometrically aligned when engaged to prevent creation of a force that acts to disengage the head responsive to an applied force acting on the shaft.Type: GrantFiled: November 4, 2013Date of Patent: February 7, 2017Assignee: Sandia CorporationInventors: Jonathan R. Salton, Stephen Buerger, Kevin J. Dullea, Lisa C. Marron, Curt Michael Salisbury, Barry Louis Spletzer
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Patent number: 9518406Abstract: An electromechanical latch is described herein. The electromechanical latch is a dual-actuator latch, wherein a first actuator and a second actuator are driven with precise timing to move a first latch part relative to a second latch part, and vice versa. When the electromechanical latch is in a closed position, the first rotary latch part is positioned to prevent rotation of the second rotary latch part in a first direction. To transition the electromechanical latch from the closed position to an open position, the first actuator drives the first rotary latch part such that the second rotary latch part is able to rotate in the first direction. Thereafter, the second actuator drives the second rotary latch part in the first direction until the electromechanical latch is in the open position.Type: GrantFiled: March 20, 2014Date of Patent: December 13, 2016Assignee: Sandia CorporationInventors: Stephen Buerger, Lisa C. Marron, Michael A. Martinez, Barry Louis Spletzer
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Patent number: 8308203Abstract: A rotary mechanical latch for positive latching and unlatching of a rotary device with a latchable rotating assembly having a latching gear that can be driven to latched and unlatched states by a drive mechanism such as an electric motor. A cam arm affixed to the latching gear interfaces with leading and trailing latch cams affixed to a flange within the drive mechanism. The interaction of the cam arm with leading and trailing latch cams prevents rotation of the rotating assembly by external forces such as those due to vibration or tampering.Type: GrantFiled: July 1, 2009Date of Patent: November 13, 2012Assignee: Sandia CorporationInventors: Barry L. Spletzer, Michael A. Martinez, Lisa C. Marron
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Patent number: 6919909Abstract: The present invention provides a method and apparatus for displaying two portions of an image at two resolutions. For example, the invention can display an entire image at a first resolution, and a subset of the image at a second, higher resolution. Two inexpensive, low resolution displays can be used to produce a large image with high resolution only where needed.Type: GrantFiled: October 24, 2000Date of Patent: July 19, 2005Assignee: Sandia CorporationInventors: Barry L. Spletzer, George S. Davidson, Daniel J. Zimmerer, Lisa C. Marron
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Patent number: 6453684Abstract: The present invention provides a method and apparatus for extracting liquid water from moist air using minimal energy input. The method comprises compressing moist air under conditions that foster the condensation of liquid water. The air can be decompressed under conditions that do not foster the vaporization of the condensate. The decompressed, dried air can be exchanged for a fresh charge of moist air and the process repeated. The liquid condensate can be removed for use. The apparatus can comprise a compression chamber having a variable internal volume. An intake port allows moist air into the compression chamber. An exhaust port allows dried air out of the compression chamber. A condensation device fosters condensation at the desired conditions. A condensate removal port allows liquid water to be removed.Type: GrantFiled: March 12, 2001Date of Patent: September 24, 2002Assignee: Sandia CorporationInventors: Barry L. Spletzer, Diane Schafer Callow, Lisa C. Marron, Jonathan R. Salton
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Patent number: 6360549Abstract: The present invention provides a method and apparatus for extracting liquid water from moist air using minimal energy input. The method comprises compressing moist air under conditions that foster the condensation of liquid water. The air can be decompressed under conditions that do not foster the vaporization of the condensate. The decompressed, dried air can be exchanged for a fresh charge of moist air and the process repeated. The liquid condensate can be removed for use. The apparatus can comprise a compression chamber having a variable internal volume. An intake port allows moist air into the compression chamber. An exhaust port allows dried air out of the compression chamber. A condensation device fosters condensation at the desired conditions. A condensate removal port allows liquid water to be removed.Type: GrantFiled: March 12, 2001Date of Patent: March 26, 2002Assignee: Sandia CorporationInventors: Barry L. Spletzer, Diane Schafer Callow, Lisa C. Marron, Jonathan R. Salton
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Patent number: 6328002Abstract: The present invention provides a combustion-powered actuator that is suitable for intermittent actuation, that is suitable for use with atmospheric pressure carburetion, and that requires little electrical energy input. The present invention uses energy from expansion of pressurized fuel to effectively purge a combustion chamber, and to achieve atmospheric pressure carburetion. Each purge-fill-power cycle can be independent, allowing the actuator to readily tolerate misfires. The present invention is suitable for use with linear and rotary operation combustion chambers, and is suitable for use in a wide variety of applications.Type: GrantFiled: May 6, 1999Date of Patent: December 11, 2001Assignee: Sandia CorporationInventors: Barry L. Spletzer, Gary J. Fischer, Lisa C. Marron, Michael A. Kuehl
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Patent number: 6247546Abstract: The present invention provides a hopping robot that includes a misfire tolerant linear actuator suitable for long trips, low energy steering and control, reliable low energy righting, miniature low energy fuel control. The present invention provides a robot with hopping mobility, capable of traversing obstacles significant in size relative to the robot and capable of operation on unpredictable terrain over long range. The present invention further provides a hopping robot with misfire-tolerant combustion actuation, and with combustion actuation suitable for use in oxygen-poor environments.Type: GrantFiled: May 6, 1999Date of Patent: June 19, 2001Assignee: Sandia CorporationInventors: Barry L. Spletzer, Gary J. Fischer, Lisa C. Marron, Michael A. Martinez, Michael A. Kuehl, John T. Feddema