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Donald N.

Donald N. Halgren, Manchester, MA US

Patent application numberDescriptionPublished
20080306495Transilluminating laparoscopic ligating vascular clamp (LVC) - A transilluminating laparoscopic ligating clamp (LVC) arrangement comprising an elongated generally ā€œJā€ shaped dorsal clamp component and an elongated generally ā€œJā€ shaped ventral clamp component, arranged to be receivably lockable with the dorsal clamp component about a living tissue element.12-11-2008
20090002201KEYBOARD WITH KEYS FOR MOVING CURSOR - Various embodiments of the present invention comprise a signal generator for sending an electrical signal from an expandable, flexible layer of material, the signal generator comprising an upper layer of flexible, resilient material and a lower layer of flexible, resilient material which between them define a cavity for enclosing an expandable material such as a cellular foam or gas, whereupon localized distortion of one of the layers of flexible material, effects a signal generation within the structure, which is transmissible through a proper circuit to an outside electrical device. A circuit may be arranged adjacent a plurality of said keys which senses when several of said keys are depressed in a skewed or sideways manner, so as to effect movement of a cursor or pointer on a monitor in communication with a processing unit and said keyboard.01-01-2009
20090023386Radiative focal area antenna transmission coupling arrangement - The present invention comprises a docking system for connecting a portable communication device to a further signal transmission line. The docking system may be arranged within a workstation such as a desk or a tray. The system may also envelope a room in a building or be located in a vehicle, to control and restrict the radiative emission from the communication device and to direct such radiation to a further remote antenna and or signal distribution system connected to the transmission line.01-22-2009
20100178880Radiative focal area antenna transmission coupling arrangement - The present invention comprises a docking system for connecting a portable communication device to a further signal transmission line. The docking system may be arranged within a workstation such as a desk or a tray. The system may also envelope a room in a building or be located in a vehicle, to control and restrict the radiative emission from the communication device and to direct such radiation to a further remote antenna and or signal distribution system connected to the transmission line.07-15-2010

Patent applications by Donald N. Halgren, Manchester, MA US

Donald N. Jensen, Derwood, MD US

Patent application numberDescriptionPublished
20090209880METHOD AND APPARATUS TO DETECT AND MONITOR THE FREQUENCY OF OBSTRUCTIVE SLEEP APNEA - The present invention provides a method and apparatus for detecting and monitoring obstructive sleep apnea. The apparatus includes an intracardiac impedance sensor to measure intracardiac impedance, a movement sensor to measure an amount of movement of a patient, and a controller operatively coupled to said intracardiac impedance sensor and said movement sensor, said controller adapted to receive at least one of an intracardiac impedance and the amount of movement of the patient and detect obstructive sleep apnea based upon said intracardiac impedance and said movement.08-20-2009

Donald N. Jursich, Crystal Lake, IL US

Patent application numberDescriptionPublished
20090230572DRUM HUMIDIFIER WITH PIVOTING FLOOR - A drum humidifier is designed for use with a forced air furnace and includes a housing including a base, a first side wall, a second side wall and a top. A removable water pan is positioned to be supported by the base. Water is maintained in the water pan by a watering means, the watering means comprising a float. A movable water pan floor, the water pan floor having an operating position and a maintenance position. The water pan floor is substantially coplanar with the base and is positioned under at least a portion of the water pan in the operating position. The water pan floor is moved to a maintenance position to allow removal of the water pan around a float while the water pan remains in a substantially horizontal position.09-17-2009
20090230574HUMIDIFIER WITH LOUVERED AIR INTAKE - A humidification system includes a housing mountable into an air duct, that includes a base frame, a cover and at least one open end panel. The base frame is mountable to an opening in the air duct that is shaped and configured to align with the base frame. The cover attaches to the base frame with the open end panel between the base frame and cover. The air outlet is through the open end panel. An evaporative element is positioned between the air inlet and air outlet. Controlling humidity output provides moisture to the evaporative element when needed.09-17-2009
20100207286HUMIDIFIER WITH ADJUSTABLE AIR FLOW - A humidification system includes a humidifier housing mountable to the air duct. The humidifier housing has an opening to provide fluid communications between the humidifier housing and the air circulation system. An air inlet extends through the duct opening into the humidifier housing. A duct damper extends into the air duct and is reversibly positionable between a stowed position and a deployed position. The stowed position is characterized by placement of the duct damper substantially adjacent to the humidifier housing while the deployed position is characterized by positioning a portion of the duct damper deeper into the air duct. An evaporative element is positioned between the air inlet and an air outlet. A cover is configured to reverse the direction of flow air sending it to the air outlet extending into the air duct. A deploying means changes the duct damper between the stowed position and the deployed position.08-19-2010

Patent applications by Donald N. Jursich, Crystal Lake, IL US

Donald N. Polner, Marblehead, MA US

Patent application numberDescriptionPublished
20080292432AIRFLOW MANAGEMENT FOR PARTICLE ABATEMENT IN SEMICONDUCTOR MANUFACTURING EQUIPMENT - An airflow management system and/or method used in particle abatement in semiconductor manufacturing equipment. In particular, the apparatus disclosed is capable of creating and managing a carefully controlled particle free environment for the handling of semiconductor wafers or similar articles. The apparatus is particularly suited to be used as an interface between an equipment front end module (EFEM) and a vacuum loadlock chamber or other such article of process equipment. The apparatus also enables relative motion between enclosures while maintaining a particle free environment utilizing a moving air diffuser mounted to an interface panel.11-27-2008

Patent applications by Donald N. Polner, Marblehead, MA US

Donald N. Ruehrwein, Batavia, IL US

Patent application numberDescriptionPublished
20080203098Reservoir mixing system - A drinking water distribution reservoir has a new draft tube mixing arrangement. An intermediate opening in the draft tube enables water to flow between the central passage of the draft tube and an intermediate portion of the tank. Directional walls can provided on the intermediate opening to help direct flow, and a check valve can be used to prevent flow from the intermediate section of the tank into the draft tube or prevent flow from the draft tube into the intermediate section of the tank. A venturi portion can also be provided on the draft tube to help draw water from the intermediate portion of the tank into the draft tube.08-28-2008
20100232254LIQUID STORAGE TANK WITH DRAFT TUBE MIXING SYSTEM - A drinking water distribution reservoir has a new draft tube mixing arrangement. An intermediate opening in the draft tube enables water to flow between the central passage of the draft tube and an intermediate portion of the tank. Directional walls can be provided on the intermediate opening to help direct flow, and a check valve can be used to prevent flow from the intermediate section of the tank into the draft tube or prevent flow from the draft tube into the intermediate section of the tank. A venturi portion can also be provided on the draft tube to help draw water from the intermediate portion of the tank into the draft tube.09-16-2010