Patents by Inventor Wolfgang Schmidt

Wolfgang Schmidt 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: 5491460
    Abstract: An electrical instrument switch includes a rocker switch for manual on-and-off switching and that is seated in an insulation housing. Depending on the pivot position, the rocker switch moves, with a working end that dips into the housing interior, a contact bridge between the closed position of its contact and the open position of its contact. The contact bridge is electrically connected in series with a contact spring that can be triggered thermally and hence acts as an overcurrent protection. The contact spring can move between its contact position and its open position. The contact spring is mechanically prestressed in the direction of its open position. When overcurrent occurs, it is transferred out of its contact position into its open position by a thermal triggering element. A pivot of the rocker switch counter to the mechanical prestress, in the tipping direction of the contact spring, guides the contact spring from its open position back into its contact position.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: February 13, 1996
    Assignee: Ellenberger & Poensgen GmbH
    Inventors: Fritz Krasser, Wolfgang Schmidt
  • Patent number: 5401166
    Abstract: A method and a combustion furnace are provided by means of which waste which is predominantly of organic nature can be burnt effectively and uniformly. The combustion furnace comprises two bottlenecks, one above the other, constituted by rocking grates. The upper rocking grate essentially serves to subject the solids to pre-combustion, namely to drying, degasifying, and partial gasifying, and to supply the material uniformly in doses to the fire bed which is located on the lower grate and in which complete gasification takes place. Rotational movements of both grates provide for uniform passage of the material through the shaft without the risk of burn-through occurring along the edges so that the entire combustion process becomes highly uniform.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: March 28, 1995
    Assignee: Wamsler Umwelttechnik GmbH
    Inventors: Heinz Mallek, Winfried Brunner, Wolfgang Schmidt
  • Patent number: 5391782
    Abstract: In the production of highly concentrated pastes of .alpha.-sulfofatty acid alkyl ester alkali metal salts by reaction of fatty acid alkyl esters with gaseous SO.sub.3, subsequent after-reaction in liquid phase and neutralization with aqueous alkali hydroxide solutions, the sulfonation product and aqueous alkali metal hydroxide solution are introduced during neutralization into an aqueous phase initially containing 0 to 55% by weight washing-active substance at a pH value in the range from 2 to 8 and washing-active substance contents of 60 to 70% by weight are established.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: February 21, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Dietmar Colignon, Erich Dorra, Guenter Panthel, Wolfgang Schmidt, Norbert Wrede
  • Patent number: 5391783
    Abstract: In the production of light-colored pastes of .alpha.-sulfofatty acid alkyl ester alkali metal salts by reaction of fatty acid alkyl esters with gaseous SO.sub.3, subsequent after-reaction in liquid phase, neutralization with aqueous alkali metal hydroxide solutions and bleaching, effective bleaching can be obtained without any reduction in the washing-active substance content by addition of the hydrogen peroxide during neutralization of the .alpha.-sulfofatty acid alkyl ester and subjecting the neutralization product obtained to a temperature-controlled after-reaction.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: February 21, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Dietmar Colignon, Erich Dorra, Herbert Lepper, Guenter Panthel, Francois Pierron, Wolfgang Schmidt, Norbert Wrede
  • Patent number: 5391786
    Abstract: Light-colored ester sulfonates can be obtained by sulfonation of fatty acid lower alkyl esters and subsequent working up providing fatty acid esters having a low content of oxo compounds and unsaturated compounds are used in the sulfonation stage.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: February 21, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernd Fabry, Ulrich Kratzel, Wolfgang Schmidt, Guenter Kreienfeld
  • Patent number: 5384422
    Abstract: In the production of .alpha.-sulfofatty acid alkyl ester alkali metal salt pastes by reaction of fatty acid alkyl esters with gaseous SO.sub.3, subsequent after-reaction in liquid phase and neutralization with aqueous alkali metal hydroxide solutions, the crude sulfonation product is fed to an at least two-stage cascade of stirred tanks equipped with heating and cooling systems in which it is subjected with mechanical agitation to a temperature-controlled after-reaction until a degree of sulfonation of at least 90% is reached, after which the aged sulfonation product is further processed in known manner to .alpha.-sulfofatty acid alkyl ester alkali metal salt pastes.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: January 24, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Dietmar Colignon, Erich Dorra, Guenter Panthel, Wolfgang Schmidt, Norbert Wrede
  • Patent number: 5382677
    Abstract: In the production of highly concentrated pastes of .alpha.-sulfofatty acid alkyl ester alkali metal salts by reaction of fatty acid alkyl esters with gaseous SO.sub.3, subsequent after-reaction in liquid phase and neutralization with aqueous alkali hydroxide solutions, the sulfonation product and aqueous alkali metal hydroxide solution are introduced during neutralization into an aqueous phase initially containing at least 55% by weight washing-active substance at a pH value in the range from 2 to 8 and washing-active substance contents of 60 to 70% by weight are established.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: January 17, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Dietmar Colignon, Erich Dorra, Guenter Panthel, Wolfgang Schmidt, Norbert Wrede
  • Patent number: 5353633
    Abstract: A pressure sensor for detecting pressure in a combustion chamber of an internal combustion engine, particularly of a motor vehicle, has a housing, a sensor block arranged in the housing, at least one plunger arranged in the housing, at least one abutment arranged in the housing, a diaphragm closing the housing and contacting the plunger, an electrical evaluating circuit arranged in the housing and including electrical components, and a ceramic plate arranged in the housing so that the sensor block and the electronic components of the evaluating circuit are arranged in the ceramic plate and the ceramic plate at least partially contacts the abutment, and the electrical components of the evaluating circuit being located at a side of the plate which faces the diaphragm.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: October 11, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Walter Benedikt, Manfred Vogel, Werner Herden, Johann Konrad, Wolfgang Schmidt, Josef Tosch, Matthias Kusell
  • Patent number: 5354551
    Abstract: A mouth and tooth care preparation consists of tensides, polishing agents, aromatizing agents as well as additional usual additives which are formulated in a binding agent or a mixture of binding agents consisting of water-soluble or water-swellable, physiologically acceptable film-forming agents. The mixture is formulated into a film which is pre-segmented into dosage units.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: October 11, 1994
    Assignee: Desitin Arzneimittel GmbH
    Inventor: Wolfgang Schmidt
  • Patent number: 5315875
    Abstract: A pressure sensor for detecting pressure in a combustion chamber of internal combustion engines has a housing, a sensor element composed of a piezoresistive material and arranged in the housing, a diaphragm, a punch introducing a pressure to be determined onto the sensor element and located between the diaphragm and the sensor element. The punch has a counterbearing, a hybrid has a base, and a preprocessing circuit has electronic components. The sensor element, the hybrid with its base and the electronic components of the preprocessing circuit are located on the counterbearing of the punch.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: May 31, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Walter Benedikt, Manfred Vogel, Werner Herden, Johann Konrad, Wolfgang Schmidt, Josef Tosch, Matthias Kuessel
  • Patent number: 5271325
    Abstract: A screen wiper assembly for cleaning the underside of a printing screen in a microcircuit thick film printer. The assembly includes a wiper blade, a movable arm for moving the wiper blade under the printing screen, and a guiding cam and roller for guiding and controlling the movement of the wiper blade.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: December 21, 1993
    Inventors: Charles W. Price, Wolfgang Schmidt
  • Patent number: 5266601
    Abstract: Process for producing polybutylene terephthalate with less than 1.0 wt % units derived from ethylene glycol from polyethylene terephthalate scrap by diolysis and ester exchange with 1,4-butanediol and subsequent polycondensation.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: November 30, 1993
    Assignee: Zimmer Aktiengesellschaft
    Inventors: Manfred Kyber, Wolfgang Schmidt, Uwe Schollar
  • Patent number: 5266451
    Abstract: A color photographic recording material with a reflective support which contains a spectrally sensitized silver halide emulsion containing at least one sensitizer for the spectral region B in a layer free from color coupler adjacent at least one dye-producing silver halide emulsion layer sensitized for the spectral region A, the sensitivity of the spectrally sensitized silver halide emulsion of the layer free from color coupler being lower by 0.6 to 2.5 log H units than the sensitivity of the sensitized silver halide emulsion of the dye-producing silver halide emulsion layer, is distinguished by an extended gradation range in the region of the maximum densities and, hence, by distinctly improved fine detail resolution at high densities.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: November 30, 1993
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Arno Schmuck, Manfred Peters, Helmut Kampfer, Wolfgang Schmidt
  • Patent number: 5266581
    Abstract: A solid, rapidly absorbable composition by weight consisting of 1 part by weight of nimodipine, 0.01 to 1.5 parts of polyvinylpyrrolidone with an average molecular weight of 15,000 to 50,000 and 1 to 12 parts by weight of crosslinked insoluble polyvinylpyrrolidone.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: November 30, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Schmidt, Helmut Luchtenberg, Eduard Porges
  • Patent number: 5249468
    Abstract: A pressure sensor for detecting pressure in a combustion chamber of internal combustion engines has a housing, a sensor element arranged in the housing and composed of a piezoresistive material, a diaphragm, and a punch arranged between the diaphragm and the sensor element and introducing a pressure to be determined onto the sensor element. The punch has an end facing the sensor element, at least the end of the punch is composed of relatively soft material.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: October 5, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Walter Benedikt, Manfred Vogel, Werner Herden, Johann Konrad, Wolfgang Schmidt, Josef Tosch, Matthias Kuesell, Frank Stanglmeier
  • Patent number: 5200301
    Abstract: A color photographic recording material comprising at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler and, optionally, a silver halide emulsion layer with no color coupler, of which the silver halide coatings together, expressed as AgNO.sub.3, amount to no more than 0.8 g/m.sup.2 and of which the silver halides have a silver chloride component of at least 95 mol-%, characterized in that the silver halide coating of a silver halide emulsion layer containing a color coupler together with the silver halide coating of the silver halide emulsion layer with no color coupler, expressed as AgNO.sub.3, is from 0.2 to 0.6 g/m.sup.2 and the silver halide coating of all the other silver halide emulsion layers, expressed as AgNO.sub.3, amounts to no more than 0.2 g/m.sup.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: April 6, 1993
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Kaspar Wingender, Wolfgang Schmidt
  • Patent number: 5199303
    Abstract: A pressure sensor for determination of pressure in a combustion chamber of an internal combustion engine, particularly for motor vehicles has a housing, a membrane associated with the housing, a sensor element, a plunger supplying a pressure to be determined to the sensor element and located in the housing. The housing has at least one housing opening and a shaft and the membrane closing the opening of the housing and is connected with the shaft of the housing in the region of a side wall so that a bottom of the membrane is flexible and a pressure to be determined is transferable to the plunger, a counter bearing for the plunger. A support is provided for a hybrid and composed of ceramic material and located on the counter bearing for the plunger. The sensor element is a piezoresistive measuring element and located on the hybrid so as to produce an electrical signal corresponding to the pressure.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: April 6, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Walter Benedikt, Johann Konrad, Matthias Kussel, Wolfgang Schmidt, Josef Tosch, Manfred Vogel, Werner Herden
  • Patent number: 5198530
    Abstract: Process for continuous production of polyesters by esterification of terephthalic acid with 1,4-bis(hydroxymethyl)cyclohexane with a split feed in the presence of a titanium catalyst at 265.degree. to 305.degree. C. and 0.8 to 1.5 bar up to a conversion of 98.0% to 99.0%, then performing precondensation at 290.degree. to 305.degree. C. and 0.01 to 1.5 bar up to a conversion of 99.4% to 99.7% and finally performing polycondensation at 295.degree. to 310.degree. C. and less than 1.5 mbar up to a conversion corresponding to 50% to 95% of the maximum possible viscosity after adding more titanium catalyst.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: March 30, 1993
    Assignee: Zimmer Aktiengesellschaft
    Inventors: Manfred Kyber, Wolfgang Schmidt, Ulrich Thiele
  • Patent number: 5194573
    Abstract: Process for discontinuous production of polyesters by esterification of terephthalic acid with a definite excess of 1,4-bis(hydroxymethyl)cyclohexane in the presence of a titanium catalyst at 180.degree. to 300.degree. C. and 0.8 to 1.5 bar up to a conversion of 98.0% to 99.6%, then precondensation with the addition of more titanium catalyst at 270.degree. to 300.degree. C. and 500 to 5 mbar up to a conversion of 99.5% to 99.9% and polycondensation at 295.degree. to 310.degree. C. and less than 1.5 mbar up to a conversion corresponding to 40% to 95% of the maximum possible viscosity.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: March 16, 1993
    Assignee: Zimmer Aktiengesellschaft
    Inventors: Wolfgang Schmidt, Ulrich Thiele
  • Patent number: 5189207
    Abstract: A process for the production of solid or paste-form products by fast reactions is carried out stoichiometrically wherein a gaseous medium is introduced into each of the reactants to be reacted with one another, the reactant streams formed are combined and are subsequently forced through a spray unit in a weight ratio of gaseous medium to product stream of from 0.04 to 0.3 (kg/kg) and at a rate of 0.1 to 15 m/second, as calculated from the gas-free reactant streams and based on the free cross-section of the spray unit. The products obtained are free from readily volatile constituents.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: February 23, 1993
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Gerhard Blasey, Christoph Breucker, Bernhard Gutsche, Lutz Jeromin, Guenter Panthel, Eberhard Peukert, Wolfgang Schmidt