US6206036B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recreational water recirculation system with double-shaft pump motor
Assignee: Lloyds IP Holdings LLC
•
Filing: 1999-01-18
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Granted: 2001-03-27
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Expires: 2019-01-18
Abstract
Abstract A pool, spa, hot tub or the like having a basin capable of retaining water, a first pump for recirculating a portion of the water within the basin to inlet jets within the side walls of the basin and a second pump for recirculating water from the basin to additional inlet jets in the side walls of the basin. Both the first pump and the second pump are driven by a single double-shaft electric motor.
Inventors
- 👤 Casey Loyd
- 👤 Pedro Vargas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:41
CPC Classifications
A; A61; A61H; A61H33/00; A61H33/60; A61H33/601; A61H33/6021; A61H33/6068; E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/048; A61H2201/00; A61H2201/12; A61H2201/1207; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6525; Y10T137/8593; Y10T137/85954; Y10T137/85978; Y10T137/86035; Y10T137/86131; Y10T137/86139; Y10T137/86147
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
100 words
A combination comprising: (a) a basin capable of retaining water, the basin having one or more water recirculation outlet ports, a first plurality of water inlet jets and a second plurality of water inlet jets; (b) a first pump for recirculating water from the one or more water recirculation outlet ports to the first plurality of water inlet jets; (c) a second pump for recirculating water from the one or more water recirculation outlet ports to one or more of the water recirculation inlet ports; and (d) a single double-shaft electric motor for driving both the first and second pumps.
Claim 2
Dependent Claim
100 words
A combination comprising: (a) a basin capable of retaining water, the basin having one or more water recirculation outlet ports, a first plurality of water inlet jets and a second plurality of water inlet jets; (b) a first pump for recirculating water from the one or more water recirculation outlet ports to the first plurality of water inlet jets; (c) a second pump for recirculating water from the one or more water recirculation outlet ports to one or more of the water recirculation inlet ports; and (d) a single double-shaft electric motor for driving both the first and second pumps.
Claim 3
Dependent Claim
55 words
The combination of claim 1 wherein the electric motor has a bottom side and a forward end, and wherein the electric motor is cooled by a counter-current flow of cooling air drawn into the electric motor from the bottom side of the electric motor and exhausted out of the forward end of the electric motor.
Claim 4
Dependent Claim
39 words
The combination of claim 2 wherein the electric motor has a forward end, and wherein cooling air is drawn into the electric motor from beneath the electric motor and exhausted out of the forward end of the electric motor.
Claim 5
Dependent Claim
15 words
The combination of claim 1 wherein the electric motor is capable of multiple speed settings.
Claim 6
Dependent Claim
18 words
The combination of claim 1 wherein the electric motor is capable of an infinite number of speed settings.
Claim 7
Dependent Claim
23 words
The combination of claim 1 wherein the motor is between a 5 NEMA frame motor size and a 145T NEMA frame motor size.
Claim 8
Dependent Claim
23 words
The combination of claim 1 wherein the motor is between a 48 NEMA frame motor size and a 56 NEMA frame motor size.
Claim 9
Dependent Claim
22 words
The combination of claim 1 wherein the electric motor is between about a 12 volt motor and about a 240 volt motor.
Claim 10
Dependent Claim
21 words
The combination of claim 1 wherein the motor is an AC motor, operating at between about 50 and about 60 hz.
Claim 11
Dependent Claim
43 words
The combination of claim 1 wherein both the first pump and the second pump are capable of recirculating water from one or more of the water recirculation ports through a filter, before returning the water to the basin via the water inlet jets.
Claim 12
Dependent Claim
41 words
The combination of claim 1 wherein at least one of the pumps is capable of recirculating water from the one or more water recirculation outlet ports through a heater before returning the water to the basin via the water inlet jets.
Claim 13
Dependent Claim
37 words
The combination of claim 1 wherein both pumps are capable of recirculating water from the one or more water recirculation outlet ports through a heater before returning the water to the basin via the water inlet jets.
Claim 14
Dependent Claim
116 words
A combination comprising: (a) a basin capable of retaining water, the basin having one or more water recirculation outlet ports, a first plurality of water inlet jets and a second plurality of water inlet jets; (b) a first pump for recirculating water from the one or more water recirculation outlet ports, through a filter and heater, to the first plurality of water inlet jets; (c) a second pump for recirculating water from the one or more water recirculation outlet ports, through a filter, to the second plurality of water inlet jets; (d) a variable speed, single double-shaft electric motor having a size between a 5 NEMA frame motor size and a 145T NEMA frame motor size.
Claim 15
Dependent Claim
116 words
A combination comprising: (a) a basin capable of retaining water, the basin having one or more water recirculation outlet ports, a first plurality of water inlet jets and a second plurality of water inlet jets; (b) a first pump for recirculating water from the one or more water recirculation outlet ports, through a filter and heater, to the first plurality of water inlet jets; (c) a second pump for recirculating water from the one or more water recirculation outlet ports, through a filter, to the second plurality of water inlet jets; (d) a variable speed, single double-shaft electric motor having a size between a 5 NEMA frame motor size and a 145T NEMA frame motor size.
Claim 16
Dependent Claim
55 words
The combination of claim 1 wherein the electric motor has a bottom side and a forward end, and wherein the electric motor is cooled by a counter-current flow of cooling air drawn into the electric motor from the bottom side of the electric motor and exhausted out of the forward end of the electric motor.
Claim 17
Dependent Claim
39 words
The combination of claim 14 wherein the electric motor has a forward end, and wherein cooling air is drawn into the electric motor from beneath the electric motor and exhausted out of the forward end of the electric motor.
Claim 18
Dependent Claim
18 words
The combination of claim 13 wherein the electric motor is capable of an infinite number of speed settings.
Claim 19
Dependent Claim
23 words
The combination of claim 13 wherein the motor is between a 48 NEMA frame motor size and a 56 NEMA frame motor size.
Claim 20
Dependent Claim
22 words
The combination of claim 13 wherein the electric motor is between about a 12 volt motor and about a 240 volt motor.
Claim 21
Dependent Claim
37 words
The combination of claim 13 wherein both pumps are capable of recirculating water from the one or more water recirculation outlet ports through a heater before returning the water to the basin via the water inlet jets.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-03-26 | 2004-09-25 | 2005-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-26 | 2008-09-25 | 2009-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-26 | 2012-09-25 | 2013-03-27 | $7700.00 | Window Closed / Lapsed |