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Oberhoff

Dietmar Oberhoff, Leichlingen DE

Patent application numberDescriptionPublished
20120067128Ultrasonic Testing System - An ultrasonic testing system for testing a test object that includes at least one transmitting unit and at least one receiver unit. In an embodiment, the transmitting unit generates a spark gap which generates an ultrasonic vibration either on the surface of, or within, the test object. In particular embodiment, the at least one receiver unit optically measures the vibration of the surface of the test object. Embodiments of the invention also relate to a transmitting means and to a receiving system for an ultrasonic testing system and to a method for operating an ultrasonic testing system.03-22-2012

Falk Oberhoff, Reichshaf DE

Patent application numberDescriptionPublished
20080210075Longitudinal slitting machine having knife holders disposed thereon - Longitudinal slitting machine having associated upper and lower knives. Knife holders for the upper knives are supported on a crosspiece. A knife head is carried by a lowering mechanism and supports an upper knife in the form of a circular knife, the lowering mechanism including a piston having a piston rod for the knife head. A path of movement of the circular knife into a cutting position is delimited by an abutment, and a depth adjuster fixes the cutting position when the knife head is lowered. A setting instrument indicates the position of cutting edges of the upper knife relative to the lower knife with reference to the true diameter of a new circular knife. The depth adjuster is positioned in conformity with a position value determined by the setting instrument. A sensor is aligned with an outer periphery of the upper knife, and during alignment of the sensor with the cutting edges of the upper knife, which alignment is effected by positioning of the depth adjuster and/or displacement of the sensor, an adjusting mechanism for a movement of the circular knife into its cutting position is fixed.09-04-2008
20090288539Knife Carrier Having Deactivatable Spring-Loading - A longitudinal cutting or slitting machine having a knife carrier that supports a circular knife. A pre-tensioning element is disposed on the knife carrier for pre-tensioning the circular knife into a cutting position defined by abutment of the circular knife against a counterknife. A changeover mechanism is disposed on the knife carrier for placing the pre-tensioning element in an ineffective position that provides a firm connection between the knife carrier and the circular knife.11-26-2009

Markus Oberhoff, Drensteinfurt DE

Patent application numberDescriptionPublished
20100240824POWDER COATING SUSPENSIONS (POWDER SLURRIES) AND POWDER COATING MATERIALS, THEIR PREPARATION AND USE - Disclosed herein is a powder coating suspension prepared in the presence of an emulsifier (A) by emulsifying a liquid component (B) in an aqueous medium (C) to give an aqueous emulsion of liquid particles (D); and cooling the emulsion of liquid particles (D); wherein the emulsifier (A) has a hydroxyl number of 50 to 250 mg KOH/g and is a copolymer prepared by copolymerizing in an aqueous medium (a1) a hydroxyl-containing, olefinically unsaturated monomer; and (a2) an olefinically unsaturated monomer selected from the group consisting of (a21) a monomer of the general formula R09-23-2010

Thomas Oberhoff, Bad Iburg DE

Patent application numberDescriptionPublished
20100225140CONVERTIBLE WITH A SUNROOF PART - A convertible vehicle has a movable top with a sunroof part that is movable with respect to the surrounding top region. The sunroof part has a closed position and an open position, as well as an interference-preventing position and an intermediate position. The sunroof part is moved to the interference-preventing position during at least part of the movement of the top from the top closed position to the top open position and is moved to the intermediate position when in the top open position.09-09-2010