Patents by Inventor Walter Diehl

Walter Diehl 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: 7717774
    Abstract: An arrangement for the sterile, aseptic production and/or filling of pharmaceutical products contains a housing which, with the exception of an inlet and an outlet with a clearly defined cross-section, is closed in an airtight manner. Through the air inlet air is forced via a filter into the interior of the housing. The air passes out of the housing through the air outlet or channels. The size of the cross-section of the air outlet and the performance of the ventilating device are matched in such a way that within the interior of the housing there is a laminar unidirectional or combined airflow and a constant overpressure with respect to the pressure outside the housing.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: May 18, 2010
    Assignee: inova pharma systems GmbH
    Inventors: Juergen Rothbauer, Mark Walter Diehl, Wolfgang Boeck
  • Patent number: 5038610
    Abstract: An anemometer with a substrate (12) comprising glass material, the length L of the substrate being considerably greater than the width B and the thickness D. The edge areas (20, 22) of the substrate are not substantially heated by the formation of the surface resistor.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: August 13, 1991
    Assignee: Sensycon Gesellschaft fur industrielle Sensor-systeme und ProzeBleitechnik mbH
    Inventors: Walter Diehl, Karlheinz Eckert, Martin Hohenstatt, Dieter Link, Otokar Prokopec
  • Patent number: 4963184
    Abstract: A meterial well-suited for gold fillings in tooth cavities consists of a porous sintered compact which is prepared from platelet-shaped gold powder produced by chemical precipitation and which exhibits a pore volume of 80 to 90%.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: October 16, 1990
    Assignee: Degussa Aktiengesellschaft
    Inventors: Walter Diehl, Hans-Martin Ringelstein
  • Patent number: 4892582
    Abstract: A dental-filling material with hardnesses exceeding 100 HV for gold-condensation is prepared from a gold-alloy powder of which the alloying components are metals resulting in hardening gold alloys and which are simultaneously soluble in nitric acid. A rough, pure gold layer on the surface of the powder particles is obtained by treatment with nitric acid.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: January 9, 1990
    Assignee: Degussa Aktiengesellschaft
    Inventors: Walter Diehl, Hans-Martin Ringelstein
  • Patent number: 4634383
    Abstract: Gold powder is inserted in a cavity for the production of fillings in teeth by means of filled gold and this is subsequently hardened mechanically. The moisture sensitivity of this process can be avoided by using a paste made of platelet shaped gold powder with a plastic, organic binder which liquifies at 20.degree. to 45.degree. C. and the mechanical hardening is carried out with ultrasonic.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: January 6, 1987
    Assignee: Degussa Aktiengesellschaft
    Inventors: Hans-Hermann Beyer, Walter Diehl, Karlheinz Eckert, Kurt Eiermann, Hans-Martin Ringelstein
  • Patent number: 4610631
    Abstract: Powder of a ductile, mouth resistant metal such as silver, platinum, palladium, aluminum, or titanium, or an alloy thereof, or a cold weldable, mouth resistant synthetic resin, such as a polyacrylate or methacrylate, polycarbonate or polysulfone is worked to a paste with a plastic organic binder which liquifies at 20.degree. to 45.degree. C. This paste is hardened in the tooth cavity by ultrasonic action.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: September 9, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventors: Hans-Hermann Beyer, Walter Diehl, Karlheinz Eckert, Kurt Eiermann, Hans-Martin Ringelstein
  • Patent number: 4461158
    Abstract: An article of jewellery, especially in the shape of a butterfly or insect has two attachments, one for each end of a chain or a string. The attachments are fixed to the free ends of inherently rigid wires, the other ends of said wires being fastened to a body of said article of jewellery in such a way that they articulate freely with said body. An eye or sleeve encircling each one of said wires and being slideable along these wires is fixed to one end of an elongated part of a pair of such elongated parts, the other ends of the latter being fastened to the body of the article of jewellery in such a way that they articulate freely with said body, the points of attachment of said elongated parts on said body being spaced apart from the points of attachment of said wires on said body. This construction allows a movement between different parts of the article of jewellery when the wearer of the article of jewellery moves, creating interesting changes in the contour of the article of jewellery.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: July 24, 1984
    Inventor: Walter Diehl
  • Patent number: 4381653
    Abstract: An article of jewellery, especially in the shape of a butterfly or insect has two attachments, one for each end of a chain or a string. The attachments are fixed to the free ends of inherently rigid wires, the other ends of said wires being fastened to a body of said article of jewellery in such a way that they articulate freely with said body. An eye or sleeve encircling each one of said wires and being slideable along these wires is fixed to one end of an elongated part of a pair of such elongated parts, the other ends of the latter being fastened to the body of the article of jewellery in such a way that they articulate freely with said body, the points of attachment of said elongated parts on said body being spaced apart from the points of attachment of said wires on said body. This construction allows a movement between different parts of the article of jewellery when the wearer of the article of jewellery moves, creating interesting changes in the contour of the article of jewellery.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: May 3, 1983
    Inventor: Walter Diehl
  • Patent number: 4103275
    Abstract: There is provided a means for measuring resistance for a resistance thermometer consisting of an insulating former as a carrier and a thin platinum layer as resistance material, the carrier for the platinum layer being made of a material having a greater thermal coefficient of expansion than platinum over the range between 0.degree. and 1000.degree. C.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: July 25, 1978
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Walter Diehl, Wolfgang Koehler
  • Patent number: 4072593
    Abstract: There is provided a process of producing a resistance element for a resistance thermometer consisting of a thin platinum layer on an insulating solid as a carrier, by sputtering the platinum layer on the solid in a krypton-oxygen or xenon-oxygen mixture.
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: February 7, 1978
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Walter Diehl, Wolfgang Koehler
  • Patent number: 4068205
    Abstract: There is provided a resistance element comprising a cylindrical carrier body, a rectangular bore therein in the direction of the longitudinal axis, a ceramic plate within said bore and securely bound to a flat wall of said carrier body, a thin layer platinum-resistor path with a temperature dependent electrical resistance firmly adhering to the surface of the ceramic plate opposite to that bound to said carrier body, electrical lead wires connected to said resistor path, said lead wires being secured to at least one end of said carrier body by an electrically nonconducting sealing composition and said lead wires passing through said sealing composition to the outside.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: January 10, 1978
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Walter Diehl, Wolfgang Koehler