Patents by Inventor Alfred Lechner

Alfred Lechner 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).

  • APPARATUS FOR INLINE TRACE ANALYSIS OF A LIQUID
    Publication number: 20180011005
    Abstract: The invention relates to an apparatus for the inline trace analysis of a liquid, preferably of an aqueous process solution, comprising: a housing (1); a micro-channel (2) through which the liquid to be examined is allowed to flow and into which light of a light source (3) is coupled; a detector (4) for light emerging from the micro-channel (2); and a user interface (5) for monitoring and/or operating the apparatus. The micro-channel (2), the detector (4) and/or the user interface (5) are arranged in the housing (1) and/or are integrated into the housing (1), and the housing (1) has a connection (6) for feeding the liquid in the micro-channel (2) and a connection (7) for power supply of the apparatus.
    Type: Application
    Filed: January 7, 2016
    Publication date: January 11, 2018
    Inventors: Gerhard Kirschner, Thomas Wisspeintner, Martin Sczepan, Helmut Hummel, Alfred Lechner, Michael Bauhuber
  • Miniaturized on-line trace analysis
    Patent number: 8948563
    Abstract: The invention relates to a measuring apparatus comprising an apparatus for forming a liquid optical waveguide having a substrate (1) having an at least partially curved closed microchannel (2) having a low-refractive coating (13), whereby there is formed in the substrate (1) at least one feed line (6) for supplying liquid, and whereby there is provided at least at one end of the closed microchannel (2) an apparatus for coupling light axially into the closed microchannel and/or for coupling light axially out of the closed microchannel (2), further comprising a light source (4), a light detector (5), and a first liquid pump (9) which supplies a sample liquid (7) to the closed microchannel (2) via the at least one feed line (6, 6a).
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: February 3, 2015
    Assignee: Hochscule Regensburg, University of Applied Science
    Inventors: Helmut Hummel, Alfred Lechner
  • MINIATURIZED ON-LINE TRACE ANALYSIS
    Publication number: 20120257193
    Abstract: The invention relates to a measuring apparatus comprising an apparatus for forming a liquid optical waveguide having a substrate (1) having an at least partially curved closed microchannel (2) having a low-refractive coating (13), whereby there is formed in the substrate (1) at least one feed line (6) for supplying liquid, and whereby there is provided at least at one end of the closed microchannel (2) an apparatus for coupling light axially into the closed microchannel and/or for coupling light axially out of the closed microchannel (2), further comprising a light source (4), a light detector (5), and a first liquid pump (9) which supplies a sample liquid (7) to the closed microchannel (2) via the at least one feed line (6, 6a).
    Type: Application
    Filed: October 5, 2010
    Publication date: October 11, 2012
    Applicant: Hochschule Regensburg - University of Applied Sciences
    Inventors: Helmut Hummel, Alfred Lechner
  • Tenter frame clip
    Patent number: 4658482
    Abstract: A tenter frame clip wherein the metal-to-metal contact between the clamping arm and the clip body is cushioned by elastomeric material. The cushioning material can be located on the clip body at the point of contact with the arm, or on a rocker member hinged to the arm and located beneath a strike plate attached to the body.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: April 21, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Alfred Lechner
  • Cup with lid
    Patent number: D775957
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: January 10, 2017
    Assignee: YoFarm Company
    Inventors: Jeff Hunt, Alfred Lechner