Patents by Inventor Mark A. Loeffler

Mark A. Loeffler 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).

  • Flow indicator impeller module
    Patent number: 5343763
    Abstract: A fluid flow indicator module 50 for insertion into a transparent conduit 12, the conduit 12 defining a path of a fluid. The fluid flow indicator module 50 has a transparent housing 52 having a fluid inlet 66 and a fluid outlet 75, the housing 52 being insertable into the conduit 12. A structure 54 which provides a visual signal in response to a fluid flow is mounted in the housing 52 in fluid communication with the fluid inlet 66.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: September 6, 1994
    Assignee: Racine Federated Inc.
    Inventors: John C. Nielsen, Mark A. Loeffler, Dominic A. Cariello