Casey, MA
Adam Casey, Whitman, MA US
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20150190802 | FLUID DELIVERY DEVICES, SYSTEMS, AND METHODS - This document provides devices, systems, and methods for delivering fluids. In some cases, the devices, systems, and methods include a deformable reservoir being at least partially defined by rigid plastically-deformable web. An actuator can press against said rigid plastically-deformable web to plastically deform said web. In some cases, a controller is adapted to receive a cartridge including a deformable reservoir and control the pressing of an actuator against a rigid plastically-deformable web to deliver fluid from the deformable reservoir. | 07-09-2015 |
20150258476 | FILTERING DEVICE WITH MEASURED ACTIVATION OF FLOW REDUCTION - A method of repeatedly indicating to a user of an appliance that a water filter unit operably connected to the appliance has passed its useful life and a filter unit configure for use in connection with the method where the filter unit includes a fluid flow impeding system within a housing of the filter unit; engaging the filter unit with the appliance; measuring the volume of water treated by the filter unit; activating a fluid flow impeding system contained within the housing of the filter unit; and repeatedly indicating to a user that the maximum volume of water the filter unit has been designed to treat has been surpassed and the filter unit should be replaced by repeatedly delivering a normal flow rate of water from the dispenser of the appliance and thereafter slowing the flow of water from the dispenser of the appliance. | 09-17-2015 |
Christopher Casey, Lexington, MA US
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20090045766 | OBSTACLE FOLLOWING SENSOR SCHEME FOR A MOBILE ROBOT - A robot obstacle detection system including a robot housing which navigates with respect to a surface and a sensor subsystem aimed at the surface for detecting the surface. The sensor subsystem includes an emitter which emits a signal having a field of emission and a photon detector having a field of view which intersects the field of emission at a region. The subsystem detects the presence of an object proximate the mobile robot and determines a value of a signal corresponding to the object. It compares the value to a predetermined value, moves the mobile robot in response to the comparison, and updates the predetermined value upon the occurrence of ah event. | 02-19-2009 |
20090055022 | OBSTACLE FOLLOWING SENSOR SCHEME FOR A MOBILE ROBOT - A robot obstacle detection system including a robot housing which navigates with respect to a surface and a sensor subsystem aimed at the surface for detecting the surface. The sensor subsystem includes an emitter which emits a signal having a field of emission and a photon detector having a field of view which intersects the field of emission at a region. The subsystem detects the presence of an object proximate the mobile robot and determines a value of a signal corresponding to the object. It compares the value to a predetermined value, moves the mobile robot in response to the comparison, and updates the predetermined value upon the occurrence of an event. | 02-26-2009 |
20090292393 | Obstacle Following Sensor Scheme For A Mobile Robot - A robot obstacle detection system including a robot housing which navigates with respect to a surface and a sensor subsystem aimed at the surface for detecting the surface. The sensor subsystem includes an emitter which emits a signal having a field of emission and a photon detector having a field of view which intersects the field of emission at a region. The subsystem detects the presence of an object proximate the mobile robot and determines a value of a signal corresponding to the object. It compares the value to a predetermined value, moves the mobile robot in response to the comparison, and updates the predetermined value upon the occurrence of an event. | 11-26-2009 |
Christopher M. Casey, Lexington, MA US
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20090007366 | Coverage Robot Mobility - An autonomous coverage robot includes a body having at least one outer wall, a drive system disposed on the body and configured to maneuver the robot over a work surface, and a cleaning assembly carried by the body. The cleaning assembly includes first and second cleaning rollers rotatably coupled to the body, a suction assembly having a channel disposed adjacent at least one of the cleaning rollers, and a container in fluid communication with the channel. The container is configured to collect debris drawn into the channel. The suction assembly is configured to draw debris removed from the work surface by at least one of the cleaning rollers into the channel, and the container has a wall common with the at least one outer wall of the body. | 01-08-2009 |
20100037418 | Autonomous Coverage Robots - An autonomous coverage robot includes a body, a drive system disposed on the body, and a cleaning assembly disposed on the body and configured to engage a floor surface while the robot is maneuvered across the floor surface. The cleaning assembly includes a driven cleaning roller, a cleaning bin disposed on the body for receiving debris agitated by the cleaning roller, and an air mover. The cleaning bin includes a cleaning bin body having a cleaning bin entrance disposed adjacent to the cleaning roller and a roller scraper disposed on the cleaning bin body for engaging the cleaning roller. The cleaning bin body has a holding portion in pneumatic communication with the cleaning bin entrance, and the air mover is operable to move air into the cleaning bin entrance. | 02-18-2010 |
20130206170 | COVERAGE ROBOT MOBILITY - An autonomous coverage robot includes a body having at least one outer wall, a drive system disposed on the body and configured to maneuver the robot over a work surface, and a cleaning assembly carried by the body. The cleaning assembly includes first and second cleaning rollers rotatably coupled to the body, a suction assembly having a channel disposed adjacent at least one of the cleaning rollers, and a container in fluid communication with the channel. The container is configured to collect debris drawn into the channel. The suction assembly is configured to draw debris removed from the work surface by at least one of the cleaning rollers into the channel, and the container has a wall common with the at least one outer wall of the body. | 08-15-2013 |
20140288708 | OBSTACLE FOLLOWING SENSOR SCHEME FOR A MOBILE ROBOT - A robot obstacle detection system including a robot housing which navigates with respect to a surface and a sensor subsystem aimed at the surface for detecting the surface. The sensor subsystem includes an emitter which emits a signal having a field of emission and a photon detector having a field of view which intersects the field of emission at a region. The subsystem detects the presence of an object proximate the mobile robot and determines a value of a signal corresponding to the object. It compares the value to a predetermined value, moves the mobile robot in response to the comparison, and updates the predetermined value upon the occurrence of an event. | 09-25-2014 |
Jeffrey A. Casey, Winchester, MA US
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20090032740 | LASER-DRIVEN LIGHT SOURCE - An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light. | 02-05-2009 |
20110204265 | Laser-Driven Light Source - An apparatus for producing light includes a chamber and an ignition source that ionizes a gas within the chamber. The apparatus also includes at least one laser that provides energy to the ionized gas within the chamber to produce a high brightness light. The laser can provide a substantially continuous amount of energy to the ionized gas to generate a substantially continuous high brightness light. | 08-25-2011 |
Joan Williams Casey, West Roxbury, MA US
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20090111036 | PHOTOLITHOGRAPHY MASK REPAIR - Masks can be repaired by creating a structure that is different from the original design, but that produces the same aerial image. For example, missing opaque material can be replaced by implanting gallium atoms to reduce transmission and quartz can be etched to an appropriate depth to produce the proper phase. In another aspect, a laser or other means can be used to remove an area of a mask around a defect, and then mask structures, either the intended design structures or alternate structures that produce the same aerial image, can be constructed using charged particle beam deposition and etching. For example, an electron beam can be used to deposit quartz to alter the phase of transmitted light. An electron beam can also be used with a gas to etch quartz to remove a layer including implanted gallium atoms. Gallium staining can also be reduced or eliminated by providing a sacrificial layer that can be removed, along with the implanted gallium atoms, using, for example, a broad ion beam. In another aspect, a charged particle beam can be programmed to etch a defect using three-dimensional information derived from two charged particle beams images of the defect from different angle. | 04-30-2009 |
Jonathan E. Casey, Waltham, MA US
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20150355452 | Adjustable Drive Mechanism - An adjustable drive mechanism, which may be used to control the elevation angle of a telescope or antenna, is disclosed. The adjustable drive mechanism can include a base plate configured to couple with a support structure and having a first spherical portion facing away from the support structure. In addition, the adjustable drive mechanism can include a gear box having a pinion gear to interface with a driven gear of a telescope or antenna, and a housing in support of the pinion gear and including a second spherical portion configured to interface with the first spherical portion of the base plate. The first spherical portion and the second spherical portion can be movable relative to one another in three rotational degrees of freedom to facilitate alignment and positioning of the pinion gear relative to the driven gear. | 12-10-2015 |
Leo F. Casey, Lexington, MA US
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20120105023 | AUTOMATIC AC BUS VOLTAGE REGULATION FOR POWER DISTRIBUTION GRIDS - A system for automatically regulating voltage on a distribution-level AC bus having an actual voltage and a nominal voltage includes an electronic power converter connected to the distribution-level AC bus. The system generates a feedback signal representative of the actual voltage of the distribution-level AC bus and produces an input control signal in response to the feedback signal. The input control signal is representative of a commanded level of reactive power. The electronic power converter is responsive to the input control signal to deliver a commanded reactive power output to the distribution-level AC bus, and the commanded reactive power output pushes the actual voltage towards the nominal voltage. | 05-03-2012 |
20140153302 | AUTOMATIC AC BUS VOLTAGE REGULATION FOR POWER DISTRIBUTION GRIDS - A system for automatically regulating voltage on a distribution-level AC bus having an actual voltage and a nominal voltage includes an electronic power converter connected to the distribution-level AC bus. The system generates a feedback signal representative of the actual voltage of the distribution-level AC bus and produces an input control signal in response to the feedback signal. The input control signal is representative of a commanded level of reactive power. The electronic power converter is responsive to the input control signal to deliver a commanded reactive power output to the distribution-level AC bus, and the commanded reactive power output pushes the actual voltage towards the nominal voltage. | 06-05-2014 |
Leo Francis Casey, Lexington, MA US
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20100001587 | PHOTOVOLTAIC DC/DC MICRO-CONVERTER - A photo-voltaic (PV) power generating system and a control system for PV array string-level control and PV modules serially-connected into strings of PV modules. The system includes plural parallel strings of serially-connected power-generating photovoltaic modules that form a PV array, DC/DC micro-converters that are coupled to a DC voltage buss and to the output of a corresponding photovoltaic module or to the output of a string of photovoltaic modules; a gating or central inverter; and a control system. The control system is structured and arranged to control and manage each string of photovoltaic modules, to ensure that power delivered by the photovoltaic power generating system is not affected by photovoltaic modules or strings of photovoltaic modules that are not operating at maximum power transfer efficiency. | 01-07-2010 |
20120161527 | PHOTOVOLTAIC DC/DC MICRO-CONVERTER - A photo-voltaic (PV) power generating system and a control system for PV array string-level control and PV modules serially-connected into strings of PV modules. The system includes plural parallel strings of serially-connected power-generating photovoltaic modules that form a PV array, DC/DC micro-converters that are coupled to a DC voltage buss and to the output of a corresponding photovoltaic module or to the output of a string of photovoltaic modules; a gating or central inverter; and a control system. The micro-converters are structured and arranged to include at least one of: an active clamp device, a ground fault detection device, and a fractional power converter that injects power in series or in parallel with voltage or current from the power-generating portion onto the DC buss. | 06-28-2012 |
20120243136 | SURGE PROTECTION ARRANGEMENT FOR ELECTRICAL CIRCUITS - A surge protection arrangement for protecting against an overvoltage condition in an electrical circuit having a power source and an electrical load includes a reactive component (such as a capacitor or an inductor) and a switching circuit connected to the reactive component. The switching circuit causes surge energy to flow to the reactive component in response to an overvoltage condition in the electrical circuit so that the surge energy is stored in the reactive component. | 09-27-2012 |
Niall Casey, Boston, MA US
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20100131018 | POLYAXIAL BONE SCREW - The present invention generally provides a polyaxial fixation device having a shank with a spherical head formed on a proximal end thereof, and a receiver member having an axial passage formed therein that is adapted to polyaxially seat the spherical head of the shank. The polyaxial bone screw further includes an engagement member that is adapted to provide sufficient friction between the spherical head and the receiver member to enable the shank to be maintained in a desired angular orientation before locking the spherical head within the receiver member. | 05-27-2010 |
Niall Patrick Casey, Boston, MA US
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20110000485 | Ventilating tube and stylet system - A ventilation system and method with a ventilating tube, a stylet removably disposed within the ventilating tube, and a proximal housing. A proximal housing includes a proximal end that connects to the ventilating tube, a distal end that connects to a ventilating machine, a lumen between the proximal end and distal end, an external wall between the proximal end and distal end, a filter contained within the external wall, surrounding the lumen, and connecting the proximal end and distal end, and a cavity between the filter and the external wall. A proximal housing contains at least one detection element and can be sensitive to carbon dioxide. The same proximal housing contains at least one treatment element to heat, cool, humidify, dehumidify, or provide medication to the lumen of the proximal housing. | 01-06-2011 |
Robert Casey, Saugus, MA US
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20090105908 | Apparatus and Method for Controlling Vehicle Motion - An apparatus and method for controlling a steering command of a vehicle is provided. A deadband value based on a current state of a transporter is applied to a roll compensated steering command to control steering of the vehicle. A gain is applied to a steering command to control steering of the vehicle. | 04-23-2009 |
Steven Casey, Boston, MA US
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20160035957 | Thermoelectric Device - The present disclosure relates to thermoelectric devices useful for a range of thermoelectric applications (e.g., high temperature thermoelectric generation, fluid conditioning). Thermoelectric devices may include one or more heat exchangers (e.g., coolant heat exchanger(s)) and one or more thermoelectric layers adjacent to the heat exchanger(s). An enclosure may surround the thermoelectric layer(s) and heat exchanger(s), providing a barrier from outside fluid (e.g., hot fluid flow). The enclosure may conduct heat between the outside surroundings and the thermoelectric layer(s). The heat exchanger(s) may be spaced from and movable or slidable relative to the enclosure, which may accommodate for certain thermal expansion effects. The enclosure may include a conformable surface adapted to conform substantially to the shape of the thermoelectric layer(s) (e.g., when a vacuum is applied). One or more thermally conductive members (e.g., fins) may extend from the conformable enclosure. Various embodiments of a thermal switch are also described. | 02-04-2016 |
Thomas V. Casey, Grafton, MA US
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20090062789 | MAGNETICALLY STEERABLE CATHETER ASSEMBLY - A magnetically steerable catheter system and method of using the system is provided. The system comprises an outer elongated, flexible member having a proximal and distal end, an inner elongated, flexible, member having a proximal end and a distal end, the inner member slidably disposed within the outer member. The system further comprises an electromagnet disposed on the distal end of one of the outer member and inner member, and a magnetically attractive element disposed on the distal end of another of the outer member and inner member. The magnetically attractive element is configured for magnetically interacting with the electromagnet to deflect the distal end of the inner member. | 03-05-2009 |