Patents by Inventor Frank Loffler

Frank Loffler 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).

  • Differential pressure pickup
    Patent number: 6631644
    Abstract: A differential pressure pickup with a small hysteresis volume which has a sensor element, two pressure measuring chambers adjacent thereto, two pressure receiving chambers closed off by separating diaphragms and two overload chambers separated from each other by an overload diaphragm, in which pickup the overload diaphragm has a closed outer edge and a closed inner edge and is firmly restrained along its outer edge and its inner edge.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: October 14, 2003
    Assignee: Endress + Hauser GmbH + Co.
    Inventors: Dietfried Burczyk, Wolfgang Dannhauer, Frank Löffler, Ralf Nürnberger, Friedrich Schwabe
  • Cast aluminum part having a casting surface
    Patent number: 6555241
    Abstract: A cylinder block of an internal combustion engine has several cylinder bores. The surfaces surrounding the cylinder bores have wear-resistant coatings which closely reproduce the surfaces. The coatings are formed by Plasma Vacuum Deposition.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: April 29, 2003
    Assignee: Vaw motor GmbH
    Inventors: Hermann W. Erbslöh, Franz Josef Feikus, Erich Lugscheider, Frank Löffler, Christian Wolff
  • Differential pressure pickup
    Publication number: 20020017143
    Abstract: A description is given of a differential pressure pickup with a small hysteresis volume which has a sensor element (1), two pressure measuring chambers (2, 3) adjacent thereto, two pressure receiving chambers (22, 32) closed off by separating diaphragms (21, 31) and two overload chambers (23, 33) separated from each other by an overload diaphragm (6), in which pickup the overload diaphragm (6) has a closed outer edge and a closed inner edge and is firmly restrained along its outer edge and its inner edge.
    Type: Application
    Filed: June 11, 2001
    Publication date: February 14, 2002
    Applicant: Endress + Hauser GmbH + Co.
    Inventors: Dietfried Burczyk, Wolfgang Dannhauer, Frank Loffler, Ralf Nurnberger, Friedrich Schwabe
  • Method of treating a casting having a casting surface
    Patent number: 6162500
    Abstract: A method for treating a casting having a casting surface by vapor-depositing a wear-resistant coating on to the casting surface.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: December 19, 2000
    Assignee: VAW motor GmbH
    Inventors: Hermann W. Erbsloh, Franz Josef Feikus, Erich Lugscheider, Frank Loffler, Christian Wolff