Patents by Inventor Heinrich Volk

Heinrich Volk 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).

  • Patent number: 6057478
    Abstract: The present invention relates to a process for preparing arylhydrazines of the formula R.sup.1 R.sup.2 R.sup.3 Ar--NH--NH.sub.2 (I) by reacting an arylhydrazinedisulfonate of the formula ##STR1## in which R.sup.1, R.sup.2, and R.sup.3 are identical or different and are H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen or OH, Ar is phenyl or naphthyl, M.sup.1 and M.sup.2 are identical or different and are H, NH.sub.4, an alkali metal or 1/2 alkaline earth metal and R.sup.1, R.sup.2, R.sup.3 and Ar in the formulae (I) and (II) have the same meaning, with water and an inorganic acid at from 0 to 100.degree. C. in the presence of an inert organic solvent to give the corresponding arylhydrazine salt and treating the arylhydrazine salt with a base.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: May 2, 2000
    Assignee: Clariant GmbH
    Inventors: Thomas Schach, Heinrich Volk, Manfred Koch
  • Patent number: 5782469
    Abstract: A stacking device for stacking card-shaped products in vertically upright positions. The stacking device has a brake stop that is flexible in the moving direction of the card-shaped products and mounted on a rocker-type drivable component. The rocker presses against the stack end in the stacking direction to advance the stack to receive additional products. The stacking device further includes a stack receiver defining the front end of the stack and including a holding bracket with a bearing surface. The stack receiver preferably is adjustable to accommodate varying widths of products to be stacked.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: July 21, 1998
    Assignee: Esselte Meto International GmbH
    Inventors: Jurgen Schoon, Heinrich Volk
  • Patent number: 5756757
    Abstract: The invention relates to a process for the preparation of 3-hydroxy-N-benzimidazolon-5-yl-2-naphthamide, which comprises reacting 5-aminobenzimidazolone and sodium carbonate in N-methylpyrrolidone with a solution of 3-hydroxy-2-naphthoyl chloride in xylene or toluene, filtering, washing with xylene or toluene, introducing the filter cake into water to which sodium carbonate has been added and steam-distilling, filtering off the residue with suction, washing and drying.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: May 26, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Michael Meier, Heinrich Volk, Rudolf Neeb
  • Patent number: 5639340
    Abstract: A portable hand-held labelling device can generally have a printing mechanism, which in the case of an embodiment with printing belts and print-side guide wheels, can have the guide wheels rotationally mounted on a shaft which is fixed to the housing. The shaft can be fabricated as a single piece with the housing or a part of the housing, and the free end of the shaft can be centered and laterally fixed in a blind locator in another part of the housing. The shaft can be provided with a longitudinal groove into which a locking strip with a number of guide channels for locking elements, corresponding to the number of guide wheels, can be inserted, and in particular, inserted and locked into place. The locking elements are preferably components of a locking mechanism, which locking mechanism also includes locking locators in the bearing hole of each guide wheel, which locking locators interact with the locking elements to rotationally position the guide wheels on the shaft.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: June 17, 1997
    Assignee: Esselte Meto International GmbH
    Inventor: Heinrich Volk
  • Patent number: 5597441
    Abstract: A hand-held labelling or marking device can typically have a housing With a printing mechanism that provides a printed ink image, such as prices, etc. Such a housing can be formed by two housing parts. At least at one point, in particular on the upper portion of the housing, the housing parts can be securely held together by means of a clamp-type holder, thereby minimizing the size of the housing. The clamp-type holder can preferably include a window for displaying a row of symbols that will be printed, which symbols can be disposed on either a belt, or a wheel of a wheel printing mechanism. Each belt or wheel can be set individually by means of a control shaft. Adjacent the window, there can preferably be special symbols corresponding to the print belts or wheels, and on a control shaft for setting of the individual belts or wheels there can be corresponding symbols to make the setting process faster and easier process.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: January 28, 1997
    Assignee: Esselte Meto International GmbH
    Inventor: Heinrich Volk
  • Patent number: 5594145
    Abstract: The process for the preparation of 2(3H)-benzothiazolones which are optionally substituted on the benzene ring by reacting a 2-aminobenzothiazole which is optionally substituted on the benzene ring with a diazotization agent in the presence of aqueous hydrochloric acid, if appropriate with addition of a chloride, to give a diazonium chloride, reacting the diazonium chloride directly to give a 2-chlorobenzothiazole, which is optionally substituted on the benzene ring, and hydrolyzing the 2-chlorobenzothiazole, without intermediate isolation, at 120.degree.-200.degree. C. under reaction pressure.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: January 14, 1997
    Assignee: Hoechst AG
    Inventors: Klaus Forstinger, Heinrich Volk, Werner Wykypiel
  • Patent number: 5374737
    Abstract: A process for the preparation of a 2-aminobenzothiazol of the formula ( I ) ##STR1## in which R.sub.1 and R.sub.2 independently of each other are hydrogen, fluorine, chlorine, bromine or iodine, trifluoromethyl or C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or nitro groups, by conversion of an arylthiourea of the formula (II) in which R.sub.1 and R.sub.2 have the meaning mentioned, which comprises carrying out the conversion in 99 to 100% strength of sulfuric acid with continuous addition of catalytic amounts of bromine, hydrogen bromide or bromide in the form of aqueous solutions and using an arylthiourea of the formula (II) which contains 1 to 35% water.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: December 20, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Steffen Dapperheld, Heinrich Volk, Karl Peter
  • Patent number: 5344248
    Abstract: A portable printer is disclosed in which the printer comprises a housing; a printing unit; means for supplying to said printing unit a substrate onto which indicia are to be printed; and means for inputting data to control the nature of the indicia printed at said printing unit, characterized in that said housing includes a main frame which serves to support the functional components of the printer; and a protective housing which fits over said frame.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: September 6, 1994
    Assignee: Esselte Meto International Produktions GmbH
    Inventors: Jurgen Schoon, Heinrich Volk, Ulf Hoch, Peter Schneider
  • Patent number: 5258090
    Abstract: A manual, or hand-held labelling device has a printing apparatus and a pivoting lever on which pivoting lever there is a journal pivot pin on which an inking roller can be loosely mounted. For axially securing the inking roller on the journal pivot pin, within the housing of the manual labelling device, there can be at least one raised, guide track in the form of a circular arc, on the housing of the labelling device, and on the side opposite to the pivoting lever. This guide track essentially corresponds to the path of the inking roller on the pivoting lever as the pivoting lever is moved during a labelling operation, and thus supports the inking roller from moving axially off of the pivot pin during movement of the pivoting lever during the labelling operation.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: November 2, 1993
    Assignee: Esselte Meto International Produktions GmbH
    Inventors: Werner Becker, Heinrich Volk
  • Patent number: 4951565
    Abstract: A printing mechanism is described having a plurality of type carriers (12, 34) which at their outer peripheral face carry in one region printing types and in another region indicator types (44). The printing types can be brought by turning the type carriers (12, 34) into a printing position. The turning travel of the type carriers (12, 34) can be limited with the aid of stop means (100, 102, 104, 106, 110). By means of a setting means (32, 20, 24) which can be brought by axial displacement into a drive connection with each of the type carriers (12, 34) each type carrier (12, 34) can be turned. A torque limiting means (96) permits transfer of a limited torque between a first component (32) and a second component (20) of the setting means. A securing means (68, 72) serves for axially fixed connection of the first component (32) to the second component (20).
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: August 28, 1990
    Assignee: Esselte Meto International GmbH
    Inventor: Heinrich Volk
  • Patent number: 4916257
    Abstract: The invention relates to a process for purification of 2-hydroxynaphthalene-6-carboxylic acid by recrystallization. In this process, the crude acid is recrystallized from water-miscible linear or cyclic aliphatic ethers, aliphatic polyethers or aliphatic hydroxy ethers or from at least 10% strength by weight aqueous solutions of these ethers. Recrystallization from a 35-90% strength by weight aqueous solutions of 1,4-dioxane is particularly preferred.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: April 10, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmold von Plessen, Siegbert Rittner, Heinrich Volk, Werner Wykypiel, Rudolf Neeb
  • Patent number: 4809603
    Abstract: A printing mechanism comprises a housing (12, 14) in which a plurality of coaxially disposed setting wheels (16) are arranged with which type carriers (20) carrying printing types (22) are in a drive connection and can be brought into predetermined setting positions. A setting shaft (42) extends through center openings disposed in the hub region of the setting wheels (16), the setting shaft (42) being mounted rotatably and axially displaceably in a wall (15) of the housing. The shaft carries at one end at least one driver (36, 38) which by axial displacement of the setting shaft (42) is adapted to be brought into engagement with radial recesses (47) formed in the hub region of the setting wheels (16). At its other end the setting shaft (42) carries an actuating knob (48). At least two detent elements are provided for arresting the setting wheels (16) on rotation thereof and holding the setting wheels (16) in their rest position.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: March 7, 1989
    Assignee: Esselte Meto International GmbH
    Inventors: Heinrich Volk, Klaus Mikolajczyk
  • Patent number: 4802409
    Abstract: A printing mechanism is described comprising a plurality of type carriers (12, 34) which on their outer peripheral face carry in one region printing types and in another region indicator types (44). The printing types can be brought into a printing position by turning the type carriers (12, 34). A setting means (32, 20, 24) including an actuating knob (32) can be brought into a drive connection with each of the type carriers (12, 34) for rotation thereof. Stop means (100, 102, 104, 106, 110) limit the turning travel of the type carriers (12, 34). Detent elements (96) hold the actuating knob against rotation relative to the type carrier (12, 34) which is in drive connection with the setting means (32, 20, 24), with a detent moment governed by the spring hardness of the detent elements.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: February 7, 1989
    Assignee: Esselte Meto International GmbH
    Inventors: Heinrich Volk, Ulf Koch
  • Patent number: 4744295
    Abstract: A printing mechanism is described comprising a plurality of type carriers (12, 34) which on their outer peripheral face carry in one region printing types and in another region indicator types (44). The printing types can be brought by turning the type carriers (12, 34) into a printing position. A setting means (32, 20, 24) including an actuating knob (32) can be brought into a drive connection with each of the type carriers (12, 34) for rotation thereof. Stop means (100, 102, 104, 106, 110) limit the turning travel of the type carriers (12, 34). With a detent moment governed by their spring hardness resilient detent elements (96) hold the actuating knob (32) against a rotation relatively to the type carrier (12, 34) in drive connection with the setting means (32, 20, 24), the detent moment being greater than the torque necessary to rotate the type carriers (12, 34).
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: May 17, 1988
    Assignee: Esselte Meto International GmbH
    Inventor: Heinrich Volk
  • Patent number: 4726290
    Abstract: An endless printing band (1) consists preferably of rubber or synthetic rubber and in its production is cut from a hose-like blank by cuts extending along its edge. Said printing band (1) has in the one region of its outer side visually readable characters (3) and in an opposite region laterally inverted raised printable characters (5). In the region of the readable characters (3) on the inner side (11) of the printing band (1) inwardly projecting cams (6) are provided for the advance of the band while the inner side (7) of the region comprising the printable characters (5) is smooth.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: February 23, 1988
    Assignee: Esselte Meto International GmbH
    Inventors: Heinrich Volk, Karl Harter
  • Patent number: 4694745
    Abstract: An endless printing band (1) consists preferably of rubber or synthetic rubber and in its production is cut from a hose-like blank by cuts extending along its edge. Said printing band (1) has in the one region of its outer side visually readable characters (3) and in an opposite region laterally inverted raised printable characters (5). In the region of the readable characters (3) on the inner side (11) of the printing band (1) inwardly projecting cams (6) are provided for the advance of the band while the inner side (7) of the region comprising the printable characters (5) is smooth.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: September 22, 1987
    Assignee: Esselte Meto International GmbH
    Inventors: Heinrich Volk, Karl Harter, Fritz Dotter
  • Patent number: 4679500
    Abstract: A printing mechanism (10) includes a plurality of setting wheels (16) which are rotatably mounted about a common axis and with which endless printing bands (20) are in drive connection which carry in a region of their length at the outer surface printing types (22) and in another region of their length carry at the outside indicating types (24). The printing bands (20) are led round the setting wheels (16) and a deflection edge (18) spaced therefrom. By turning the setting wheels (16) said bands are adjustable. In another region of their length they are provided at the inner surface with teeth (50) for engaging in corresponding recesses (52) in the setting wheels. A setting shaft (42) carrying an actuating knob (48) can be brought into a drive connection with the setting wheels (16).
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: July 14, 1987
    Assignee: Esselte Meto International GmbH
    Inventor: Heinrich Volk
  • Patent number: 4618701
    Abstract: 6-Hydroxy-2-naphthoic acid can be selectively acetylated to 6-acetoxy-2-naphthoic acid, in particular in the presence of admixtures of isomeric hydroxy-naphthoic acids, and thus be separated from those isomeric admixtures. The acetylation is affected in aqueous alkaline solution by reaction with acetic anhydride. By hydrolysis of the 6-acetoxy-2-naphthoic acid, a pure 6-hydroxy-2-naphthoic acid is obtained.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: October 21, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudolf Neeb, Wolfgang Ironich, Heinrich Volk
  • Patent number: 4618393
    Abstract: A hand labeling device for imprinting and dispensing self-adhesive labels comprises a housing (110) in which is disposed a printing mechanism (10) movable between a raised inoperative position and a lowered printing position. The printing mechanism comprises a plurality of axially adjacent setting wheels (16) with which type carriers (20) carrying printing types (22) are in a drive connection. A setting shaft (42) extending in the direction of the axis of the setting wheels (16) and connected to the printing mechanism (10) projects outwardly at a housing wall (110a); it is displaceable at a side face of the printing mechanism (10) between an inserted and an extended position and with the aid of said shaft the setting wheels (16) can be adjusted relatively to each other in such a manner that desired printing types (22) on the type carriers (20) move into a printing zone at the printing mechanism (10).
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: October 21, 1986
    Assignee: Esselte Pendaflex Corporation
    Inventor: Heinrich Volk
  • Patent number: D365597
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: December 26, 1995
    Assignee: Esselte Meto International Produktions GmbH
    Inventors: Peter Patzak, Heinrich Volk