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Ellsworth, MA

James R. Ellsworth, Marshfield, MA US

Patent application numberDescriptionPublished
20080213743Method for adjusting sedimentation rates - One or more chemicals are added to a physiological fluid to alter the density and/or shape of cells in the fluid to provide a desired sedimentation rate of the cells. In a preferred embodiment, the chemical to be added is an anticoagulant, preferably ACD.09-04-2008
20090120852Method and apparatus for separating fluid components - A floating element for separating components of a physiological fluid comprises two parts that are relatively movable. The two parts define a prescribed volume between them when at their maximum separation, and one of the parts may be moved toward the other to express the fluid contained in the volume between the parts. The parts are made of materials having densities so that they assume a desired position in the fluid to allow selected components to be easily obtained and expressed.05-14-2009
20090131877Method and apparatus for separating fluid components - A floating element for separating components of a physiological fluid comprises two parts that are relatively movable. The two parts define a prescribed volume between them when at their maximum separation, and one of the parts may be moved toward the other to express the fluid contained in the volume between the parts. The parts are made of materials having densities so that they assume a desired position in the fluid to allow selected components to be easily obtained and expressed.05-21-2009
20090283524Blood components separator disk - A separator disk for use in centrifugal separation of components is designed to automatically position itself during separation at the interface between the supernatant and the remaining components. Preferably the interface is between plasma and red blood cells.11-19-2009
20100016830Injection of Anticoagulant Into Bone Marrow Space - A method for aspirating bone marrow includes the step of injecting anticoagulant into the area Of the bone marrow cavity surrounding the entry site of the aspiration needle. The amount of anticoagulant may be relatively small because the primary objective is to address the damage caused by entry of the needle into and through regions of the bone marrow cavity. As little as 0.5 ml heparin is injected prior to aspiration. Additional anticoagulant is provided in the collection syringe to facilitate further processing, as by centrifugal fractionation of the marrow to obtain desired components.01-21-2010
20110036786FLOATING DISK FOR SEPARATING BLOOD COMPONENTS - A floating separating element for use in centrifugal separation of components of a physiological fluid comprises a positioning part and a separating part, where the positioning part is designed to automatically assume a position in a supernatant and a separating part is positioned at a desired location with respect to the interface between the supernatant and heavier components. In preferred embodiments the physiological fluids are blood or bone marrow aspirate, and the heavier components comprise red blood cells. The positioning part comprises the majority of the mass of the separating element and is thin so that differences in the position of the separating element with respect to the interface are small compared to differences in the densities of the separated compoments, particularly the component comprising red blood cells. A method allows red blood cells to move the separating element during decanting to ensure complete decant of the supernatant.02-17-2011
20110160031DECANTING CENTRIFUGE WITH VIBRATION ISOLATION - A centrifuge has a rotor for receiving a disposable processing unit. The centrifuge is configured such that the motor is attached to an enclosure and the enclosure is supported on a base. The connection between the base and the enclosure is a vibration isolator, and the isolator is positioned such that its effective line of action aligns with the effective plane of rotation of the rotor. In accordance with another feature of the invention, the processing units are held in a decanting position by a decant ring that moves vertically but does not rotate. The ring engages the top of the processing unit during decant and the abrasion is minimal.06-30-2011

Patent applications by James R. Ellsworth, Marshfield, MA US

Joseph R. Ellsworth, Worcester, MA US

Patent application numberDescriptionPublished
20080225485Distributed transmit/receive integrated microwave module chip level cooling system - A radar transmit and receive integrated microwave module with conductively cooled condenser side rails and one or more vacuum brazed fluid distribution manifold cold plates in fluid communication with the side rails. There are one or more transmit and receive modules on a cold plate. Each module includes a coolant input and a coolant output. One or more gallium nitride monolithic microwave integrated circuits are within each transmit and receive module and each include a micro heat exchanger in fluid communication with the coolant input and the coolant output of the transmit and receive module to directly cool the gallium nitride monolithic microwave integrated circuit.09-18-2008
20090185352HIGH PERFORMANCE POWER DEVICE - A printed circuit board (PCB) assembly is provided. The PCB assembly is adapted for mounting at least one heat-generating electrical device and providing integrated heat dissipating capability to dissipate heat generated by the electrical device. The PCB assembly has a top surface and a bottom surface and comprises a signal carrying layer and an insert of pyrolytic graphite (PG). The signal carrying layer, disposed between the top surface and the bottom surface, comprises a material that is both thermally conductive and electrically conductive (such as at least one of aluminum, copper, and silver and alloys thereof) and has at least a portion lying in a first plane. The insert of PG is disposed within at least a portion of the first plane of the signal carrying layer, is in thermal contact with the signal carrying layer, and is constructed and arranged to have its greatest electrical conductivity in the first plane. Optionally, a conductive via can be formed in portions of the signal carrying layer not occupied by the insert of PG, where the conductive via operably couples a first side of the signal carrying layer to a second side of the signal carrying layer.07-23-2009
20100038056High performance compact heat exchanger - A high performance compact heat exchanger includes a base plate with evaporator channels for cooling a heat source adjacent to the base plate. A condenser is connected to the base plate and includes fins with channels therein for the coolant. A pump delivers the coolant to the evaporator channels of the base plate after passing through the fins of the condenser.02-18-2010
20100039770Pneumatic presssure wedge - An electronic subsystem such as an array of radar transmit/receive microwave modules are associated with (e.g., base mounted to) spaced heat sinks. There is an electronic module on each side of each heat sink and an inflatable bladder or “pneumatic pressure wedge” between adjacent heat sinks biases a pair of electronic modules against their respective heat sinks.02-18-2010
20100245179Method and Apparatus for Thermal Management of a Radio Frequency System - A thermal management system includes an air duct assembly comprising a supply air duct having an air inlet opening, a return air duct having an air exit opening and a plurality of distribution air ducts configured to be in fluid communication with the air inlet opening of the supply air duct and with the air exit opening of the return air duct. A fan is disposed within the air duct assembly to direct air from the air inlet opening of the supply air duct through the supply air duct and out the air exit opening of the return air duct. The fan and supply duct are disposed to direct air over a first surface of a heat sink. A second opposing surface of the heat sink is disposed over and configured to be in thermal contact with a plurality of active circuits disposed on a first surface of a radio frequency (RF) multi-layer printing wiring board (PWB).09-30-2010

Patent applications by Joseph R. Ellsworth, Worcester, MA US

Paul P. Ellsworth, Burlington, MA US

Patent application numberDescriptionPublished
20100263251Front loading frame display arrangement - A thin, graphic support assembly comprising an elongated base rail and an elongated cover rail which come together around a board to form four sides of a frame. A spring mechanism is fully captured after the base rail and cover rail are assembled together, and the angle and position of the spring channel allows the hinge location to be at the top/outer edge of the frame. The elongated base rail and elongated cover rail can be oriented in a parallel relationship when closed for capturing a display panel or a perpendicular relationship when open for inserting or removing a display panel.10-21-2010

Thomas E. Ellsworth, Wilmington, MA US

Patent application numberDescriptionPublished
20100192388METALLIZED CUTLERY AND TABLEWARE AND METHOD THEREFOR - A plastic cutlery item molded from a plastic material, such as polystyrene, having a metallic coating that imparts to this cutlery item the appearance of metal cutlery or silverware. In one embodiment the plastic cutlery or tableware items are molded using injection molding techniques, and subjected to a vacuum metallizing process in an individualized non-contiguous manner, where a thin metallic layer is deposited on at least one of their surfaces. The resultant items simulate the appearance of metal cutlery or tableware. In one embodiment of the invention the plastic cutlery or tableware articles are molded from a clear polystyrene resin and are coated with a thin stainless steel layer through vacuum sputtering deposition on only one of the sides. The abrasion resistance of the metallic coating can be enhanced by subjecting the articles to a post-metallizing holding period or by applying a clear protective overcoat.08-05-2010