Patents by Inventor Karl Heinz Becker
Karl Heinz Becker 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: 4564334Abstract: The follow-up guide wheels of a multistage centrifugal pump define flow paths whose cross-sectional area increases exclusively in the axial direction of the respective stages, or axially and radially inwardly, to thus allow for a reduction of the outer diameters of the guide wheels without reducing the efficiency of the pump.Type: GrantFiled: April 26, 1984Date of Patent: January 14, 1986Assignee: Klein, Schanzlin & Becker AktiengesellschaftInventors: Peter Hergt, Alexander Nicklas, Karl-Heinz Becker
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Patent number: 4406583Abstract: A centrifugal pump comprises a casing which has two volutes disposed substantially diametrically opposite each other in such a way that the end of the first volute is adjacent to the start of the second volute. The outer diameter of the casing approximates or equals the diameter of the first volute in the region of the end of the first volute. This contributes to compactness of the casing. The volutes surround a rotary impeller or a guide wheel which is installed in the casing downstream of the impeller. Each volute extends along an arc of at most 180 degrees. The casing can have one or more elongated channels extending from the end of the first volute, along the second volute, and to a common outlet nozzle for both volutes.Type: GrantFiled: January 14, 1981Date of Patent: September 27, 1983Assignee: Klein, Schanzlin & Becker AktiengesellschaftInventors: Karl-Heinz Becker, Peter Milla, Peter Hergt, Heinz-Dieter Hellmann
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Patent number: 4383800Abstract: The double volute casing of a centrifugal pump has a main portion which has first and second volutes extending along arcs of not more than 180 degrees. The outer diameter of the main portion equals or approximates the outer diameter of the end of the first volute, and such end is adjacent to the start of the second volute whose end communicates with an outlet nozzle of the main portion. The latter has two channels which flank the second volute and extend between the end of the first volute and the outlet nozzle. The inner sides of the channels are open and face the axial passage of the main portion. Such inner sides are sealed from the axial passage by tubular inserts which are installed in and are separably fastened to the main portion of the casing. The passage receives a single-suction or a double-suction impeller or a stationary guide wheel which is located downstream of the impeller. The main portion of the casing is a one-piece casting.Type: GrantFiled: January 21, 1981Date of Patent: May 17, 1983Assignee: Klein-Schanzlin & Becker AktiengesellschaftInventors: Karl-Heinz Becker, Peter Milla, Peter Hergt, Heinz-Dieter Hellmann
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Patent number: 4288452Abstract: Compounds of the formulaAr--O--CH.sub.2 --CHOH--CH.sub.2 --NH--RwhereinAr is phenyl; phenyl monosubstituted or polysubstituted by halogen, cyano, acylamino (in which the acyl group has 1-7 carbon atoms), alkanoyl of 1-4 carbon atoms, alkyl (in which the chain can be interrupted by 1 or 2 oxygen atoms or by one sulfur atom and/or in which a multiple bond can be present) of a total of 1-10 carbon atoms, cycloalkyl of 3-8 carbon atoms, and/or cycloalkoxy of 3-8 carbon atoms; naphthyl; indanyl; indenyl; tetralyl; indolyl; indolyl monosubstituted or polysubstituted by alkyl, each of 1-4 carbon atoms; carbazolyl; or 1,2,3,4-tetrahydro-2-oxoquinolyl; andR is nitratoalkyl of 2-10 carbon atoms,and the physiologically acceptable acid addition salts thereof have valuable pharmacological properties, e.g., which make them useful for prophylaxis and treatment of heart problems, e.g., as .beta.-receptor blockers.Type: GrantFiled: February 9, 1979Date of Patent: September 8, 1981Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Johannes Sombroek, Karl-Heinz Becker, Klaus O. Minck, Hans-Joachim Enenkel
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Patent number: 4258062Abstract: New phenoxy-amino-propanols of formula ##STR1## wherein R.sup.1 is alkenyl, alkynyl, alkoxyalkyl or alkenyloxyalkyl with 2-6 C atoms in each case or cycloalkyl with 3-8 C atoms; and R.sup.2 is alkyl or hydroxyalkyl with 1-6 C atoms in each case, cycloalkyl with 3-8 C atoms, aralkyl or aralkyl wherein the aryl radical is mono- to tri-substituted by alkyl, alkoxy, OH, F and/or Cl or mono-substituted by methylenedioxy, with a total of 7-15 C atoms in each case, and the physiologically acceptable acid addition salts thereof, exhibit various pharmacological properties including isoprenaline-antagonism on the heart rate and blood pressure.Type: GrantFiled: May 30, 1979Date of Patent: March 24, 1981Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Rochus Jonas, Karl-Heinz Becker, Hans-Joachim Enenkel, Klaus Minck, Hans-Jochen Schliep
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Patent number: 4208169Abstract: A radial or semiaxial impeller for centrifugal pumps has an annulus of vanes whose inlet edges are disposed at the periphery of a circle and are bounded by convex transition surfaces having small radii of curvature. The inner portions of the suction sides of vanes are bounded by flat or slightly curved surfaces which merge gradually into concave surfaces bounding the outer portions of the respective suction sides. The length of each flat or slightly curved surface is between 3 millimeters and the vane pitch. The ratio of the radii of curvature of transition surfaces at the inlet edges of the vanes to the vane pitch is between 0.0035 and 0.04 and/or the ratio of these radii to the average thickness of the inlet portion of a conventional vane is between 0.04 and 0.50. Such construction of the vanes reduces the likelihood of excessive erosion as a result of cavitation.Type: GrantFiled: May 10, 1977Date of Patent: June 17, 1980Assignee: Klein, Schanzlin & Becker AktiengesellschaftInventors: Karl-Heinz Becker, Hans-Dieter Knopfel, Alexander Nicklas, Peter Hergt, Engin Diler
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Patent number: 4171370Abstract: New phenoxy-amino-propanols of formula ##STR1## wherein R.sup.1 is alkenyl, alkynyl, alkoxyalkyl or alkenyloxyalkyl with 2-6 C atoms in each case or cycloalkyl with 3-8 C atoms; and R.sup.2 is alkyl or hydroxyalkyl with 1-6 C atoms in each case, cycloalkyl with 3-8 C atoms, aralkyl or aralkyl wherein the aryl radical is mono- to tri-substituted by alkyl, alkoxy, OH, F and/or Cl or mono-substituted by methylenedioxy, with a total of 7-15 C atoms in each case, and the physiologically acceptable acid addition salts thereof, exhibit various pharmacological properties including isoprenaline-antagonism on the heart rate and blood pressure.Type: GrantFiled: October 4, 1977Date of Patent: October 16, 1979Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Rochus Jonas, Karl-Heinz Becker, Hans-Joachim Enenkel, Klaus Minck, Hans-Jochen Schliep
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Patent number: 4153216Abstract: An apparatus for chip removal and chip receiving when trimming metal bands, which includes an automatically driven and self-controlling winding-up device for tautly winding-up the seam chip cut off from a metal band being trimmed. The apparatus furthermore includes a chip guiding device reciprocable alongside the chip winding-up region for guiding engagement with the chip being fed to the winding-up device.Type: GrantFiled: January 16, 1978Date of Patent: May 8, 1979Assignee: Hoesch Werke AktiengesellschaftInventors: Karl-Heinz Becker, Friedhelm Gunther, Manfred Gerber, Werner Roll
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Patent number: 3989833Abstract: Adenine derivatives of the formula ##SPC1##Wherein R is phenyl or thienyl, and the physiologically acceptable acid addition salts thereof, possess, with good compatibility, cardio-active properties and are produced by the reaction of a purine derivative of the formula ##SPC2##Wherein X is F, Cl, Br, I, SR.sub.1, SOR.sub.1, SO.sub.2 R.sub.1 or OSi(CH.sub.3).sub.3, R.sub.1 being alkyl of 1-4 carbon atoms, phenyl or benzyl, with an amine of the formula ##SPC3##Wherein R has the values given above, or a salt thereof.Type: GrantFiled: November 4, 1974Date of Patent: November 2, 1976Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Rochus Jonas, Werner Mehrhof, Karl Heinz Becker, Hans-Jochen Schliep
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Patent number: 3985881Abstract: Novel isoquinoline derivatives of the formula ##SPC1##Wherein R.sub.1 is H or, together with R.sub.2, a C--N bond; R.sub.2 is H, R.sub.8 or, together with R.sub.1, a C--N bond; R.sub.3 is H, methyl or ethyl; R.sub.4 and R.sub.5 each are H or collectively a C--C bond; and R.sub.6 and R.sub.7 each are H or methoxy; R.sub.8 being acyl of 1-10 carbon atoms or alkyl of 1-17 carbon atoms optionally mono- or polysubstituted by phenyl, OH, ArCOO--, ArCONH--, piperidino, 3,4-dehydropiperidino, morpholino, carboxy, carbomethoxy and/or carbethoxy, Ar being 3,4,5-trimethoxyphenyl; and the physiologically acceptable acid addition salts and quaternary ammonium salts thereof, have cardiovascular activity and can be prepared by acylating a corresponding primary amine lacking the COAr group with 3,4,5-trimethoxybenzoic acid or a functional derivative thereof.Type: GrantFiled: December 9, 1974Date of Patent: October 12, 1976Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Werner Mehrhof, Rolf Pohlke, Karl Heinz Becker, Hans-Jochen Schliep