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US 6,494,686 B1Granted
Tandem pump and interface for same
AssigneeHydro-Gear Limited Partnership
InventorWilliam H. Ward
Life of this patent
Estimating the term…
Abstract
A tandem pump comprising first and second pumps connected by an interface. An interface for connecting an end cap of a first pump to a housing of a second pump. An interface kit for connecting two pumps in axial alignment to form a tandem pump.
Claims12
A tandem pump comprising:
- a first pump having a shaft end, a cap end and an oil port;
- a second pump axially aligned with the first pump and having a shaft end, a cap end and an oil port;
- an interface plate connecting the shaft end of the second pump to the cap end of the first pump;
- and
- a conduit connecting the oil port of the second pump with the oil port of the first port.
2 more elements
A pump interface for connecting an end cap of a first pump to a housing of a second pump, the interface comprising:
- a first side adapted to mate with the end cap of the first pump;
- a second side adapted to mate with the housing of the second pump;
- a pump lumen through which a pump shaft positioned in the first pump may be coupled to a pump shaft positioned in the second pump;
- and
- at least two drain orifices, wherein only one of the at least two drain orifices is in fluid communication with a drain orifice of the first pump.
2 more elements
An interface kit for connecting two pumps in axial alignment to form a tandem pump, the kit comprising:
- an interface having a first side adapted to mate to a pump housing, a second side adapted to mate to an end cap, and a lumen through the first and second sides adapted to allow coupling between pump shafts;
- a pump shaft coupler adapted to mate to and couple two pump shafts in axial alignment;
- and
- an external oil conduit adapted to mate with oil ports in the two pumps.
1 more element
Dependencies are inferred from the claim text.