Patents by Inventor Gregory Gutwein

Gregory Gutwein 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).

  • Two stage sewage grinder pump
    Publication number: 20070069050
    Abstract: A two-stage sewage grinder pump (10) having two impellers (30, 32) and a grinder (60) attached to the motor shaft (24). Preferably, both impellers are vortex impellers and are positioned between the grinder and the motor. The motor housing includes a discharge conduit (70) that is monolithic with the motor housing (20). An anti-siphon valve (71) is integral with the discharge conduit. An integral discharge flange (75) and check valve (78) are attached to the discharge conduit to connect the sewage grinder pump to a sewage outlet.
    Type: Application
    Filed: October 14, 2004
    Publication date: March 29, 2007
    Applicant: CRANE PUMPS & SYSTEMS, INC.
    Inventors: Gregory Gutwein, Donald Holder, Mark Kowalak, Bruce Ordway