Patents by Inventor Peter Lehmann
Peter Lehmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6048624Abstract: A dummy plate is provided for offset printing which essentially consists of a plate-, sheet- or band-form, mechanically and/or electro-chemically roughened, anodically oxidized and optionally hydrophilized aluminium support and a non-photosensitive, water-soluble protective layer applied thereto, characterized in that the layer contains a water-soluble organic compound which contains at least one OH- or NH-acidic group having a pKa value of .ltoreq.8 as acid or salt, and has a layer thickness which is smaller than the average roughness ra of the support material, determined by optical means. Even after extended storage at elevated temperature, the dummy plate can easily be used without an additional development step and exhibits no tendency to stick.Type: GrantFiled: July 30, 1998Date of Patent: April 11, 2000Assignee: AGFA-GevaertInventors: Cornelia Alba, Andreas Elsasser, Fritz-Feo Grabley, Klaus Jorg, Peter Lehmann
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Patent number: 6007143Abstract: A rear mounting having two scoop elements is detachably fastened in the rear cutout of a convertible vehicle by way of fastening elements. The scoop elements are constructed to be separable in a longitudinal center plane so that, in an in-use position on the vehicle, the two scoop elements form a connected unit and, in a transport position, these scoop elements can be stowed in the vehicle in a mutually detachable and separate manner.Type: GrantFiled: August 29, 1997Date of Patent: December 28, 1999Assignee: Dr. Ing. h.c.F. Porsche AGInventors: Klaus-Peter Lehmann, Markus Schmid
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Patent number: 5998084Abstract: A positive-working, radiation-sensitive recording material capable of being used for the production of planographic printing plates, comprising: an aluminum support and a radiation-sensitive layer coated thereon, whereinthe aluminum support has been grained in nitric acid, then cleaned in sulfuric acid, anodized in sulfuric acid, and subsequently hydrophilized with a compound comprising at least one unit with a phosphonic acid or phosphonate group; andthe radiation-sensitive layer comprisesa) a radiation-sensitive 1,2-naphthoquinone-2-diazide-4- or -5-sulfonic acid ester of a polycondensate having phenolic hydroxy groups, said polycondensate being obtained by reacting a phenolic compound with an aldehyde or ketone,b) a novolak or a polycondensation product obtained by reacting a polyphenol with an aldehyde or ketone, as an alkali-soluble resin,c) a vinyl-type polymer comprising at least one unit having a lateral hydroxyphenyl group,d) a clathrate-forming compound,e) a low-molecular weight compound which comprType: GrantFiled: November 15, 1996Date of Patent: December 7, 1999Assignee: Agfa-Gevaert N.V.Inventors: Andreas Elsaesser, Raimund Haas, Guenter Hultzsch, Peter Lehmann, Rudolf Neubauer, Rudolf Zertani
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Patent number: 5915682Abstract: A sheet feeder system for a sheet-fed printing press includes a device for causing a sheet pile to sag at least partly in at least an upper region thereof, and at least two contact elements disposed in mutually spaced-apart relationship on an upper side of the sheet pile and having respective contact surfaces for pressing against the upper side of the sheet pile at least partly or temporarily, at least one of the contact elements being drivable so as to move the respective contact surfaces pressing against the upper side of the sheet pile towards and away from one another, respectively, for forming an interspace between the uppermost sheet of the sheet pile and a sheet immediately therebelow, and a method for individually separating sheets.Type: GrantFiled: November 21, 1996Date of Patent: June 29, 1999Assignee: Heidelberger Druckmaschinen AGInventors: Hermann Ambuhl, Urs Fluhmann, Martin Greive, Bernd Hermann, Hans Johr, Peter Lehmann, Rudolf Luthi
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Patent number: 5909730Abstract: THE INVENTION provides a beatable container for bitumen, cut-back or the like, comprising a body member defining a base zone, side wall zones, end wall zone and a roof zone, characterized in means for transmitting heat from a heating medium to the base zone and to at least part of the side wall zones of the container.Type: GrantFiled: March 21, 1997Date of Patent: June 8, 1999Assignees: Henred-Fruehauf Trailers (Proprietary) Limited, Cont-Asphalt LimitedInventors: Peter Lehmann, Jacques Grisoni
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Patent number: 5908706Abstract: A dummy plate for offset printing comprising essentially a mechanically and/or electrochemically roughened, anodically oxidized and hydrophilized aluminium support in the form of a plate, sheet or band and a non light-sensitive, water-soluble layer coated thereon, and characterized in that the layer contains at least one organic polymer with a water-solubility of at least 2 g/L at room temperature and at least one inorganic compound reacting as an acid.Type: GrantFiled: February 19, 1997Date of Patent: June 1, 1999Assignee: Agfa-GervertInventors: Peter Lehmann, Klaus Joerg
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Patent number: 5810345Abstract: An apparatus for processing folded printed sheets includes a work station for processing the folded printed sheets and a conveying device driven with a transporting movement in a direction along a conveying path that is arranged alongside the work station. Saddle-shaped supports are attached to the conveying device and have supporting edges on which the printed sheets can be supported respectively along their fold by straddling the supporting edge of the respective saddle-shaped support. The saddle-shaped supports are conveyed along the conveying path so that the supporting edges are positioned transverse to the conveying path at a distance to each other and move successively past the work station which cooperates with the saddle-shaped supports respectively while the saddle-shaped supports are transported past the work station.Type: GrantFiled: October 30, 1996Date of Patent: September 22, 1998Assignee: Grapha-Holding AGInventors: Peter Lehmann, Ernst Luthi
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Patent number: 5727916Abstract: Strips which are to be worked in a forming tool are taken out of a magazine and deposited on a guide at which by means of a finger rod with elastic catchs they are guided to the tool and stepwise advanced through said tool. By means of the programmable driving for the finger rod, this finger rod can execute strokes in any direction and in any different dimensions in order to guide the strips in the forming tool and for displacing them stepwise through the tool. The stripfeeder is of simple construction and it can be programmed for the most different requirements in that only the driving will be correspondingly programmed.Type: GrantFiled: April 23, 1996Date of Patent: March 17, 1998Assignee: Styner & Bienz AGInventors: Roland Krebs, Peter Lehmann, Rudolf Luthi
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Patent number: 5390806Abstract: A beam tank includes a tank mounted on two mountings located one towards either end of the tank and with the tank being secured to the mountings by removable securing means so that the tank can be removed from its mountings. Each mounting includes a tank cradle spaced from and connected to an end frame. The tank is rotatably connected to each of its end frames by tank end connections.Type: GrantFiled: November 19, 1993Date of Patent: February 21, 1995Assignee: Henred-Fruehauf Trailers (Proprietary) Ltd.Inventors: Malcolm Elston, Peter Lehmann
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Patent number: 5271818Abstract: A mechanically roughened substrate is conveyed through an electrolytic bath and is given a superposed electrochemical roughening, which is carried out by means of electrodes which are arranged in the electrolytic bath at a specific spacing from the substrate. The electrodes are connected to corresponding windings on the secondary side of a three-phase transformer. The corresponding windings on the primary side of the three-phase transformer are connected to a three-phase frequency converter, to which three-phase current is applied via leads. The three-phase frequency converter transforms the line frequency of the three-phase current supplied into a frequency range of about 50 to 300 Hz at a voltage of between about 1 and 380 V.Type: GrantFiled: November 20, 1992Date of Patent: December 21, 1993Assignee: Hoechst AktiengesellschaftInventors: Joachim Stroszynski, Heinz Boergerding, Peter Lehmann
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Patent number: 5264036Abstract: An apparatus for applying a fluid to a moving carrier strip includes a distributor and a plurality of individual flow channels which together form a multi-jet nozzle. The individual flow channels in the form of capillary tubes are arranged at right angles to the distributor axis at equal distances along a longitudinal line parallel to the distributor axis. The capillary tubes protrude into an internal chamber of the distributor and the capillary tube located at each end of the longitudinal line protrudes further into the interior of the distributor than the other capillary tubes.Type: GrantFiled: November 2, 1992Date of Patent: November 23, 1993Assignee: Hoechst AktiengesellschaftInventors: Raimund Haas, Peter Lehmann, Hans Heist
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Patent number: 5178195Abstract: An apparatus for connecting at least two rods by a wire clamp comprises, mounted on one housing portion, a movable handle portion for the advance of said wire clamp, and closing jaws which are adapted to bring the locking portions of the wire clamp into engagement beneath the rods to be connected, and in the other housing portion, a binding hook fitted on a knurled rod, in order to twist the closed loop of the wire clamp which is situated above the rods to be connected. A sliding plate, which is connected to the handle, comprises a mechanism directed to actuating a bending pin on one of the closing jaws, in order to provide for positive interlocking of the wire clamp, and a mechanism for controlling and achieving safe individualization and advance of the wire clamps. Such an apparatus is adapted for reliable, swift and relatively comfortable operation even when exposed to the rough handling on a construction site.Type: GrantFiled: October 1, 1991Date of Patent: January 12, 1993Assignee: Styner & Bienz AGInventors: Heinrich Glaus, Peter Lehmann, Hans Joehr, Rene Freiburghaus
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Patent number: 5111623Abstract: A process and apparatus for machining the inner surface of a pipe where a tool carrier is positioned adjacent the area to be machined and a cutting tool is advanced about a pivot axis around the inner surface of the pipe, while also having a pendulum movement of the tool holder in a direction parallel to the pivot axis. The pendulum axis is perpendicular to the pivot axis, while the pivot axis is parallel to the axis of the pipe. The apparatus has a transporter to move it into location and motor drives to pivot a tool holder and provide the pendulum movement. A distance sensor and adjustment apparatus maintains a supporting member carrying the tool holder at a desired radial position relative to the inner surface of the pipe.Type: GrantFiled: May 15, 1990Date of Patent: May 12, 1992Assignee: Mannesmann AktiengesellschaftInventor: Peter Lehmann
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Patent number: 5097567Abstract: In a method for connecting at least two rods, wherein a binding apparatus, which is provided with a rotatable hook member, seizes a wire loop, which extends around the rods, and twists the loop during a pulling movement. The wire clamp or clip which has leg portion ends provided with locking means is brought around the rods to be connected in such a manner that, when viewed from the hook member the locking means are brought into engagement with each other behind the rods, and the closed wire clamp in front of the rods is seized by the hook member of the binding apparatus and twisted.The device is required for this purpose includes a binding apparatus which has a slide member connected to a displaceable gripping member for the forward advancement of the wire clamp and closing jaws which are adapted to bring the locking members on the wire clamp into engagement behind the rods to be connected.Type: GrantFiled: May 24, 1990Date of Patent: March 24, 1992Assignee: Styner & Bienz AGInventors: Heinrich Glaus, Peter Lehmann, Hans Joehr, Rene Freiburghaus
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Patent number: 5095930Abstract: A distributor tube has tube slots in its shell surface transversely of the inflow direction of a fluid into the distributor tube. A casing tube is enclosed by the distributor tube and is divided into flow chambers, each of which is bounded by two annular plates and connected to an inlet sector. A star-shaped volume flow divider is located on the inlet side of the distributor tube as a tube insert, which divides the introduced mass flow rate into partial flow rates for the flow chambers. In another embodiment, the distributor tube encloses a rotationally symmetric pressure distributor, whereby the fluid within the distributor tube encounters equal pressure in the radial and axial flow directions over the inlet length of the distributor tube.Type: GrantFiled: April 24, 1991Date of Patent: March 17, 1992Assignee: Hoechst AktiengesellschaftInventors: Joachim Stroszynski, Herbert Zeisel, Franz Durst, Raimund Haas, Werner Interthal, Peter Lehmann, Gerhard Mack, Manfred Dammann
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Patent number: 5082537Abstract: A mechanically roughened substrate is conveyed through an electrolytic bath and is given a superposed electrochemical roughening, which is carried out by means of electrodes which are arranged in the electrolytic bath at a specific spacing from the substrate. The electrodes are connected to corresponding windings on the secondary side of a three-phase transformer. The corresponding windings on the primary side of the three-phase transformer are connected to a three-phase frequency converter, to which three-phase current is applied via leads. The three-phase frequency converter transforms the line frequency of the three-phase current supplied into a frequency range of about 50 to 300 Hz at a voltage of between about 1 and 380 V.Type: GrantFiled: March 29, 1990Date of Patent: January 21, 1992Assignee: Hoechst AktiengesellschaftInventors: Joachim Stroszynski, Heinz Boergerding, Peter Lehmann
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Patent number: 5054614Abstract: A twistable wire clamp for connecting objects has a V-shaped configuration, the lower portion of each of its two shanks forming an oblong loop having locking means consisting of the closed end of the narrower loop, on one hand, and of a locking member projecting towards the inside of the wider loop and extending in the same plane as the loop, on the other hand. On each side of the transitional portion between said two shanks, said clamp is provided with a respective shoulder. Said clamp is placed, by means of an apparatus, around the objects to be connected or the opening to be closed, after which said locking means are brought into engagement with one another by said apparatus, and said wire clamp is seized in the area of said transitional portion and twisted by a binding hook of the apparatus. Said loops are convex with respect to their plane, and said closed end portion has a thinning and is bent over towards said other loop.Type: GrantFiled: March 8, 1990Date of Patent: October 8, 1991Assignee: Styner & Bienz AGInventors: Heinrich Glaus, Peter Lehmann, Hans Joehr, Rene Freiburghaus
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Patent number: 5029598Abstract: A distributor tube has tube slots in its shell surface transversely of the inflow direction of a fluid into the distributor tube. A casing tube is enclosed by the distributor tube and is divided into flow chambers, each of which is bounded by two annular plates and connected to an inlet sector. A star-shaped volume flow divider is located on the inlet side of the distributor tube as a tube insert, which divides the introduced mass flow rate into partial flow rates for the flow chambers. In another embodiment, the distributor tube encloses a rotationally symmetric pressure distributor, whereby the fluid within the distributor tube encounters equal pressure in the radial and axial flow directions over the inlet length of the distributor tube.Type: GrantFiled: April 20, 1990Date of Patent: July 9, 1991Assignee: Hoechst AktiengesellschaftInventors: Joachim Stroszynski, Herbert Zeisel, Franz Durst, Raimund Haas, Werner Interthal, Peter Lehmann, Gerhard Mack, Manfred Dammann
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Patent number: 4999927Abstract: A process for drying a liquid layer which has been applied to a carrier material moving through a drying zone and which contains vaporizable solvent components and non-vaporizable components, wherein a drying gas flows in the longitudinal direction of the carrier material parallel to the liquid layer and is accelerated in the drying zone in the direction of flow, is disclosed. Also disclosed is a device for accomplishing the drying process, comprising a drying channel through which the carrier material bearing the liquid layer runs in the longitudinal direction, and a gas-permeable channel-covering surface, through which the gas stream flows into the drying channel.Type: GrantFiled: May 9, 1989Date of Patent: March 19, 1991Assignee: Hoechst AktiengesellschaftInventors: Franz Durst, Raimund Haas, Guenter Hultzsch, Manfred Dammann, Gerhard Mack, Werner Interthal, Joachim Stroszynski, Peter Lehmann
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Patent number: D391547Type: GrantFiled: February 28, 1997Date of Patent: March 3, 1998Assignee: Dr. Ing. h.c.F. PorscheInventors: Klaus-Peter Lehmann, Markus Schmid