Other

Crane Pumps & Systems, Inc.

Aquascape Designs, Inc.

Bruce B Ordway

Donald Holder

Chih Min Lin

William James Watkins

Mark Kowalak

David R Kelly

Gregory J Gutwein

Allan R Kishpaugh

Matthew J Gulisano

Mark P Kowalak

Donald J Holder

A pump has a housing that defines a pump chamber () with a fluid inlet and outlet (). An impeller () is mounted for rotation in the pump chamber. A raceway () is in floating axial relationship with the impeller and divides the pump chamber into an inlet chamber (), an impeller chamber () and a discharge chamber (). The raceway has preferably two flow channels, in separated end-to-end arrangement. Each flow channel has an inlet passage and an outlet passage, establishing a fluid conduit from the inlet chamber to the impeller chamber and then to the discharge chamber. A spring () provides resistance to axial movement of the raceway away from the impeller. A seal chamber () formed on the raceway and pressurized by the fluid, urges the raceway towards the impeller.

Dual channel compliant turbine pump

A two-stage sewage grinder pump () having two impellers () and a grinder () attached to the motor shaft (). Preferably, both impellers are vortex impellers and are positioned between the grinder and the motor. The motor housing includes a discharge conduit () that is monolithic with the motor housing (). An anti-siphon valve () is integral with the discharge conduit. An integral discharge flange () and check valve () are attached to the discharge conduit to connect the sewage grinder pump to a sewage outlet.

Two stage sewage grinder pump

A decorative or landscape pond system which includes the skimmer assembly and a substantially horizontally-positioned, submersible and rotary pump in the skimmer assembly and supported on a bottom wall thereof. The skimmer assembly includes a side opening and a net and mat filter positioned within the skimmer below the opening and above the bottom wall. The pump is in elongated structure having an inlet/outlet section at one end, an electrical inlet section at the other end and an elongated electric motor section there between. A lubrication section is positioned between and sealingly engages the inlet/outlet section and motor section. A plurality of O-ring and face seals are provided for sealing the sections. The securement of the sections is either radially outward or radially inward of the O-rings and face seals to minimize leakage between sections or into the pump itself.

Pond system and related pump

Growing community of inventors

Troy, OH, United States of America

Bruce B Ordway