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Groll

David Groll, Murrysville, PA US

Patent application numberDescriptionPublished
20110253144Nasal Interface for Continuous Positive Airway Pressure Mask - The mask that is the subject of the present invention enables the delivery of continuous positive airway pressure to patients suffering from sleep apnea by engaging and sealing the area surrounding the patient's nasal passages in order to deliver the therapy. The present invention includes a new nasal interface piece that is of different material composition than the balance of the mask and is comprised of between twelve and thirty-two percent elastane, between twelve and thirty-two percent polyurethane and between forty-six and sixty-six percent polyamide.10-20-2011

David G. Groll, Murrysville, PA US

Patent application numberDescriptionPublished
20090242529Method to cut apertures in a material - A method is described for the cutting of apertures in a material using a computer, laser control software, input device, laser and an x-y plotting bed. The method is to preferably form apertures in fluid impermeable material including composite materials. The apertures are used as exhaust valves in positive pressure masks to deliver breathable gas to patients and in garments.10-01-2009

Eckhard A. Groll, West Lafayette, IN US

Patent application numberDescriptionPublished
20120006022ORGANIC RANKINE CYCLE WITH FLOODED EXPANSION AND INTERNAL REGENERATION - A heat engine system configured to extract thermal energy from a heat source, convert a first portion of the thermal energy to work using an expansion device, and reject a second portion of the thermal energy to a heat sink. The system utilizes a second fluid to inhibit a temperature drop of the first fluid within the expansion device.01-12-2012

Jürgen Groll, Niederstotzingen DE

Patent application numberDescriptionPublished
20100121422Hydrogel-Filled Drug Delivery Reservoirs - A cochlear implant electrode includes an implantable electrode carrier having an outer surface with electrode contacts for electrically stimulating nerve tissue of the inner ear of a patient. A drug lumen is within the electrode carrier and adapted to receive a therapeutic fluid. The drug lumen contains delivery openings to the outer surface of the electrode carrier and a hydrogel matrix disposed between the drug lumen and the one or more delivery openings and adapted to swell in volume when exposed to the therapeutic fluid. The hydrogel matrix is adapted to control diffusion of the therapeutic fluid from the drug lumen through the delivery openings to the outer surface of the electrode carrier.05-13-2010

Neil Groll, New South Wales AU

Patent application numberDescriptionPublished
20090132718Content Filtering System for a Mobile Communication Device and Method of Using Same - A method of controlling access to content from a mobile client device, the mobile client device being communicably connected to a server device via a communication link, and the method including the steps of: (i) receiving in the mobile client device, an input indicative of the content; (ii) thereafter, processing the received input, wherein said processing includes the mobile client device determining if the received input meets an access criteria, whereby, the mobile client device selectively provides access to the content if the access criteria is determined to have been met.05-21-2009

Richard John Groll, Tyngsborough, MA US

Patent application numberDescriptionPublished
20100003137Fixed horizontal axis-mounted wind turbine blade with an independently rotating pressure cambered fin - A fixed horizontal axis-mounted wind turbine blade impelled by an independently rotating, pressure cambered fin includes a wind turbine blade comprised of a solid, rigid leading edge and trailing edges. The blade is triangular in shape, the base of the triangular blade is attached to a center, longitudinally fixed, horizontal, primary rotating axis and the point opposite the base is most distant from the horizontal rotating axis. The wind turbine blade base and length are aligned mutually perpendicular to the primary horizontal axis of rotation. A triangular fin is attached to the trailing edge of the blade end most distant from the base. The base of the attached fin is coincident to a secondary axis of rotation. The secondary axis of rotation allows the fin to rotate past either side of the plane of primary blade revolution in response to wind pressure.01-07-2010

Steven E. Groll, Connersville, IN US

Patent application numberDescriptionPublished
20100192938Heat Transfer Tubes, Combustion Gas Eductors, And Cooking Medium Heating Systems Including Such Tubes And Eductors - A cooking medium heating system includes a cooking vessel for holding a cooking medium, at least one heat transfer tube for transferring heat generated by combustion to the cooking medium, and a combustion gas eductor for venting combustion gas exhausted from a combustion gas exhaust opening. Each heat transfer tube includes a bottom wall, a pair of side walls, a top wall, and a combustion gas entry opening and a combustion gas exhaust opening formed therein at opposite ends thereof. The tubes may include at least one heat transfer fin and a combustion gas flow separator dividing the tube into two spaces between the separator and the pair of side walls. The combustion gas eductor includes a flue including a narrower, exhaust gas receiving end disposed adjacent to the combustion gas exhaust opening, a nozzle including a nozzle inlet and a nozzle outlet, and a blower.08-05-2010

William Charles Groll, North Bend, OH US

Patent application numberDescriptionPublished
20090094989APPARATUS AND METHOD FOR SUPPRESSING DYNAMIC PRESSURE INSTABILITY IN BLEED DUCT - An apparatus and method for suppressing dynamic instability in a bleed duct of a gas turbine engine includes a fan bypass duct configured to permit a flow of air through the gas turbine engine. The fan bypass duct defines a fan duct surface, and the bleed duct has an inlet in fluid communication with the fan bypass duct and a flow control valve having an opened position and a closed position. A flow diverter is positioned on the fan duct surface proximate the inlet of the bleed duct and diverts the flow of air from the inlet when the flow control valve is closed, while permitting a portion of the flow of air to enter the inlet when the flow control valve is opened.04-16-2009