US5004535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water purification system
Assignee: Aquatec Water Systems Inc
•
Filing: 1989-04-17
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Granted: 1991-04-02
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Expires: 2009-04-17
Abstract
Abstract A reverse osmosis water purification system includes a support structure dimensioned and arranged to facilitate manual transportation, purification components mounted on the support structure for producing product water and waste water from feedwater by reverse osmosis, and pump components mounted on the support structure for pumping feedwater from a separate source to the purification means. An accumulator may be included for accumulating the feedwater under pressure, and the support structure may take the form of a suitcase-like component housing a battery supply, a solar panel, water pressure and amperage instrumentation, electrical connectors for various external power sources, and water line connectors for feedwater inlet and both product water and waste water outlet purposes.
Inventors
- 👤 Robert S. Bosko
- 👤 Thomas C. Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/02; B01D61/10; B01D61/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
190 words
A reverse osmosis water purification system, comprising: a support structure in the form of a suitcase-like component; purification means mounted on the support structure for producing product water and waste water from feedwater by reverse osmosis, the purification means including a prefilter, a reverse osmosis membrane, and a post filter connected in series; a diaphragm pump mounted on the support structure for pumping feedwater from a separate source; inlet means on the support structure for coupling the feedwater from the separate source to the diaphragm pump; accumulator means mounted on the support structure and coupled to the pump for accumulating the feedwater from the pump for coupling to the prefilter; first outlet means on the support structure for outletting the product water from the post filter; second outlet means on the support structure for outletting the waste water from the purification means; a battery mounted on the support structure for powering the diaphragm pump; a solar panel mounted on the support structure for powering the diaphragm pump; and means mounted on the support structure for enabling a user to connect the diaphragm pump to an external source of electrical power.
Claim 2
Dependent Claim
190 words
A reverse osmosis water purification system, comprising: a support structure in the form of a suitcase-like component; purification means mounted on the support structure for producing product water and waste water from feedwater by reverse osmosis, the purification means including a prefilter, a reverse osmosis membrane, and a post filter connected in series; a diaphragm pump mounted on the support structure for pumping feedwater from a separate source; inlet means on the support structure for coupling the feedwater from the separate source to the diaphragm pump; accumulator means mounted on the support structure and coupled to the pump for accumulating the feedwater from the pump for coupling to the prefilter; first outlet means on the support structure for outletting the product water from the post filter; second outlet means on the support structure for outletting the waste water from the purification means; a battery mounted on the support structure for powering the diaphragm pump; a solar panel mounted on the support structure for powering the diaphragm pump; and means mounted on the support structure for enabling a user to connect the diaphragm pump to an external source of electrical power.
Claim 3
Dependent Claim
40 words
A system as recited in claim 1, wherein the suitcase-like component includes a base, a cover mounted on the base for movement between an open position and a closed position, and a handle for use in manually transporting the system.
Claim 4
Dependent Claim
28 words
A system as recited in claim 1, wherein the accumulator means includes: pressure gauge means for indicating the pressure of the supply of feedwater in the accumulator means.
Claim 5
Dependent Claim
17 words
A system as recited in claim 1, wherein: the solar panel is removable from the support structure.
Claim 6
Dependent Claim
35 words
A system as recited in claim 4, including means for supporting the solar panel apart from the support structure in position facing the sun; and means for coupling the pump means to the solar panel.
Claim 7
Dependent Claim
29 words
A system as recited in claim 1, wherein the means for enabling includes: a cord having a connector configured to be plugged into a conventional automotive cigarette lighter outlet.
Claim 8
Dependent Claim
20 words
A system as recited in claim 1, wherein the enabling means includes: a converter component carried by the support structure.
Claim 9
Dependent Claim
28 words
A system as recited in claim 1, further comprising: ammeter means carried by the support structure for indicating the amount of electric current being drawn by the pump.
References Cited (Backward Citations)
US3506126A
Cited
US3505215A
Cited
US3746640A
Cited
US3838774A
Cited
US3841483A
Cited
US3964999A
Cited
US3992301A
Cited
US3954611A
Cited
US4160727A
Cited
US4070280A
Cited
US4366051A
Cited
USRE32144E
Cited
US4118315A
Cited
US4218317A
Cited
US4399036A
Cited
US4399057A
Cited
US4508622A
Cited
US4498982A
Cited
US4587518A
Cited
US4528093A
Cited
US4623467A
Cited
US4548716A
Cited
US4761295A
Cited
US4702842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |