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US 12,595,798 B1Granted
Disposable impeller assembly for a magnetic drive pump and related methods
AssigneeLexor, Inc.
InventorsChristopher Luong, Nguyen Le, Nam Le
Life of this patent
Estimating the term…
Abstract
A pump for a spa device including a motor having a drive shaft and a magnetic drive plate attached thereto. The pump further includes an impeller assembly magnetically coupled to the magnetic drive plate of the motor. The impeller assembly is configured to be disposable.
Claims29
A pump for a spa device, comprising:
- a motor having a drive shaft and a magnetic drive plate attached thereto;
- and
- an impeller assembly magnetically coupled to the magnetic drive plate of the motor, wherein the impeller assembly is configured to be disposable and comprises:
- a housing having at least one inlet and at least one discharge nozzle;
- an impeller housed within the housing, the impeller comprising a plurality of vanes located between a front wall and a rear wall, the plurality of vanes configured to generate a fluid stream expelled out through the at least one discharge nozzle, the front wall having a continuous outer perimeter;
- and
- a first plate connected to a rear surface of the rear wall of the impeller, the first plate comprised of a ferrous material, the first plate configured to magnetically engage with the magnetic drive plate of the motor for generating an axial magnetic force for linearly fixing the impeller, and the housing therewith, relative to the motor.
4 more elements
A pump for a spa device, comprising:
- a motor having a drive shaft and a magnetic drive plate attached thereto;
- and
- an impeller assembly comprising:
- a housing having at least one inlet and at least one discharge nozzle;
- an impeller housed within the housing, the impeller comprising a plurality of vanes configured to generate a fluid stream expelled out through the at least one discharge nozzle;
- a first plate connected to a rear surface of the impeller, the first plate comprised of a ferrous material, the first plate configured to magnetically engage with the magnetic drive plate of the motor for linearly and removably connecting the impeller, and the housing of the impeller assembly therewith, to the motor;
- a second plate connected to and covering the first plate, the second plate comprised of a paramagnetic material;
- wherein the second plate comprises a centrally located through opening and the first plate is solid at a central area thereof;
- and
- wherein the impeller comprises a front wall and a rear wall and the plurality of vanes are located between the front wall and the rear wall.
7 more elements
A method of assembling a spa pump comprising:
- attaching a motor having a drive shaft and a magnetic drive plate attached thereto to a mount adaptor, the magnetic drive plate comprising a series of north and south magnets;
- attaching a pair of plates to an impeller, the pair of plates comprising a first, ferrous plate and a second, paramagnetic plate;
- placing the impeller, with the plates attached thereto, within a housing;
- removably attaching the housing onto the mount adaptor;
- wherein the first and second plates are configured to magnetically couple the impeller to the magnetic drive plate of the motor such that the housing is held against the mount adaptor via an axial magnetic force generated by the first plate;
- wherein the impeller is rotatable within the housing via a rotational magnetic force generated by the second plate;
- and
- wherein the second plate comprises a body with a single through opening located centrally of the body.
5 more elements
Dependencies are inferred from the claim text.