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Grabau

Frederick W. Grabau, Temecula, CA US

Patent application numberDescriptionPublished
20090067149Electronic shielding apparatus and methods - A shielding apparatus useful in the attenuation of electronic noise or spurious electric signals is disclosed. In one embodiment, the shielding apparatus is encapsulated with an electronic component such as an integrated circuit. At least parts of the apparatus are formed using a selective metal deposition process (e.g., electroforming) that increases manufacturing efficiency and provides enhanced mechanical and structural features, as well as reduced cost. In another embodiment, the shielding apparatus comprises an array. Methods of manufacturing and utilizing the shielding apparatus are also disclosed.03-12-2009

Patrick Grabau, Wilsdruff DE

Patent application numberDescriptionPublished
20110108539Method and Device for Igniting an Arc - A method and an apparatus relate to an ignition an arc between an anode and a cathode of a plasma source which can be used for a substrate surface modification at environmental atmosphere conditions. The cathode is arranged at a spacing from the anode. This method and the apparatus may reduce the effort for the ignition of an arc of a plasma source and to make the ignition process safer. The method is such that a barrier discharge is ignited with a supplied gas by means of two electrodes which are arranged parallel to the longitudinal axis between the anode and the cathode and are connected to a high-voltage generator and are supplied with a radio frequency electric AC voltage on the ignition. When an electric DC voltage is applied to the anode and to the cathode, an arc can thereby be ignited by means of the charge carriers present between the anode and the cathode due to the barrier discharge.05-12-2011

Ted D. Grabau, Marshalltown, IA US

Patent application numberDescriptionPublished
20100193716Pneumatic Actuator Having Diaphragm Retention Ring - A pneumatic valve actuator for moving the valve stem of a control valve comprises an upper casing and a lower casing each having flanges, a diaphragm plate operatively coupled to the valve stem, a spring arranged to bias the diaphragm plate in a first direction, a diaphragm movable in conjunction movement of the diaphragm plate, an air inlet defined in the casing and arranged for attachment to an air supply source to bias the diaphragm plate in a second direction, and a ring disposed between the upper flange and the lower flange and positioned to engage the outer portion of the diaphragm. The ring includes a protrusion positioned to engage a surface of the outer portion of the diaphragm.08-05-2010

Patent applications by Ted D. Grabau, Marshalltown, IA US

Ted Dennis Grabau, Marshalltown, IA US

Patent application numberDescriptionPublished
20110209777LOW FRICTION LIVE-LOADED PACKING - A valve packing assembly for a control valve includes a seal assembly, a loading assembly, and a packing retainer. The seal assembly has a seal component to provide a fluid seal around a valve stem and an anti-extrusion component to substantially prevent extrusion of the seal component about the valve stem. The loading assembly is configured to advantageously provide a predetermined packing stress to the seal assembly that is in the same direction as a process stress applied to the seal assembly by a process fluid, thereby substantially reducing packing friction and packing wear in the control valve assembly.09-01-2011

Thomas Grabau, Luebeck DE

Patent application numberDescriptionPublished
20100313720DEVICE AND METHOD FOR SEPARATING SURFACE LAYERS IN PRODUCTS OF THE FOOD INDUSTRY - A method and apparatus to separate a surface layer of a product in the food industry. The apparatus includes a transport device to transport the product from an input region to an output region and a pressure device to press the product against the transport device. A separating device is arranged in the output region to separate the surface layer from the product. The separating device defines a separating gap between the separating device and the transport device. A substantially cylindrical, rotatably controllable deflecting device is arranged in the output region. The deflecting device has a shape varying in the axial direction and/or a circumferential direction. The transport device is guided around the deflecting device to create a variable process gap to separate the surface layer of the product from the product.12-16-2010

Thomas Grabau, Lubeck DE

Patent application numberDescriptionPublished
20080202897Conveying Apparatus - The invention concerns a conveying apparatus, essentially including an endless conveying element which is guided over several deflecting elements and comprises a conveying sector and a return sector, the conveying sector defining a conveying plane E, a drive for the conveying element and elements for centering the conveying element, which is distinguished by the fact that at least the deflecting elements arranged at opposite ends of the conveying sector are designed as elements for centering the conveying element transversely to the direction of transport T with an inwardly directed shape.08-28-2008