Pump assemblies configured for drive and pump end interchangeability
AssigneeRotary Manufacturing, LLC
InventorsJeffrey Scott Brown, Scott Alan McAloon, Seth Thomas
Life of this patent
Estimating the term…
Abstract
A universal pump assembly mounts, interchangeably, on a canned motor or on an adapter having an outer magnet assembly rotated by a motor. The pump assembly has a casing with an inlet and an outlet, and an impeller rotatable within the casing to pump fluid from the inlet to the outlet. The pump assembly can have either a mounting ring for attachment to the canned motor, or a containment shell having a cup with an inner magnet assembly and a mounting ring extending from the cup for attachment to the adapter. Mounting features of the mounting ring may be threaded holes or internally threaded posts as non-limiting examples.
Claims4
A pump assembly for mounting on a universal adapter having a rearward end for attachment to a motor, a forward opening receiving area, an outer magnet assembly rotatable around the receiving area by the motor, and a forward mounting plate surrounding the forward opening receiving area and having a plurality of spaced-apart holes formed through the forward mounting plate, the forward mounting plate for attachment to the back cover of each of a variety of pump assemblies, the pump assembly comprising:
- a casing having an inlet and an outlet;
- a back cover attached directly to the casing, the back cover having a plurality of spaced-apart, rearward extending posts projecting from the back cover for alignment with, and insertion into, the plurality of spaced-apart holes formed through the forward mounting plate of the universal adapter, and the back cover having a plurality of spaced-apart holes positioned radially outward of the plurality of spaced-apart, rearward extending posts;
- a containment shell comprising a rearward extending cup for positioning in the receiving area of the universal adapter and a forward extending annular flange integrally formed with the rearward extending cup, the forward extending annular flange abutting against the back cover;
- an inner magnet assembly positioned in the cup and rotatable therein by magnetic coupling to the outer magnet assembly through the cup;
- a wobble plate rotatable within the casing by the inner magnet assembly;
- multiple reciprocating diaphragm devices actuated by the wobble plate upon rotation thereof to pump fluid from the inlet to the outlet;
- first fasteners received through the plurality of spaced-apart holes of the back cover and into corresponding openings in the casing attaching the back cover to the casing;
- and
- second fasteners receivable through the plurality of spaced-apart holes of the forward mounting plate and into the plurality of spaced-apart, rearward extending posts of the back cover for removably attaching the pump assembly to the universal adapter.
Dependencies are inferred from the claim text.