Patent US4006116A successfully refreshed from Google Patents.
US3950253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Domestic water filtration apparatus
Assignee: Dynek Corp
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Filing: 1975-01-08
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Granted: 1976-04-13
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Expires: 1995-01-08
Abstract
Abstract A portable domestic water purification and filtration apparatus includes a container for treating water to having a reservoir for storing untreated water and a pump having an inlet connected to pump water from the bottom of the reservoir and an outlet connected within the container to the inlet of a filter device also located within the container. The filter device includes an integral outlet spout for discharging the filtered water over the upper edge of the container.
Inventors
- 👤 Emanuel Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/001; C02F1/003; B; B01; B01J; B01J47/00; B01J47/012; C02F1/28; C02F1/283; C02F1/50; C02F1/505
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
175 words
Water purification apparatus comprising a portable container having a water reservoir compartment for storing untreated water and a pumping compartment in juxtaposition to said reservoir compartment, said water reservoir compartment having a bottom wall, an inlet for adding untreated water to said reservoir compartment and a water outlet passage in said bottom wall, water pumping means having an inlet and an outlet, said pumping means being mounted within the pumping compartment of the portable container and having said inlet thereof connected to the water outlet passage of the water reservoir compartment for receiving water directly from said reservoir compartment, and a filter means removably mounted within said water compartment of said container, said filter means having an inlet connected to the outlet of said water pump means and an outlet nozzle integrally constructed within the filter means extending over the upper edge of said container, whereby untreated water placed in the reservoir is positively pumped from the reservoir through the filter means for purification and pumped out the integral outlet nozzle of the filter means.
Claim 2
Dependent Claim
175 words
Water purification apparatus comprising a portable container having a water reservoir compartment for storing untreated water and a pumping compartment in juxtaposition to said reservoir compartment, said water reservoir compartment having a bottom wall, an inlet for adding untreated water to said reservoir compartment and a water outlet passage in said bottom wall, water pumping means having an inlet and an outlet, said pumping means being mounted within the pumping compartment of the portable container and having said inlet thereof connected to the water outlet passage of the water reservoir compartment for receiving water directly from said reservoir compartment, and a filter means removably mounted within said water compartment of said container, said filter means having an inlet connected to the outlet of said water pump means and an outlet nozzle integrally constructed within the filter means extending over the upper edge of said container, whereby untreated water placed in the reservoir is positively pumped from the reservoir through the filter means for purification and pumped out the integral outlet nozzle of the filter means.
Claim 3
Dependent Claim
76 words
Water purification apparatus as in claim 1 wherein the filter means comprises a distributor filter in juxtaposition to the inlet to the filter means, the distributor filter means having pore openings in the range of approximately thirty five to approximately one hundred and twenty five microns in diameter, said pore openings being sufficient to prevent coarse particles in the water from flowing through the filter thereby forming a deposit of coarse particles upon the distributor filter.
Claim 4
Dependent Claim
31 words
Water purification apparatus as in claim 2 wherein the pumping means stops pumping water through the filter means upon an excessive accumulation of coarse particle deposits on the distributor filter means.
Claim 5
Dependent Claim
16 words
Water purification apparatus as in claim 3 wherein the pumping means comprises a non-positive displacement pump.
Claim 6
Dependent Claim
15 words
Water purification apparatus as in claim 4 wherein said pumping means is a centrifugal pump.
Claim 7
Dependent Claim
44 words
Water purification apparatus as in claim 1 wherein the outlet of the water pumping means is a pump outlet passage, and the inlet to the filter means has a sealing means for sealing the connection between the filter means and the pump outlet passage.
Claim 8
Dependent Claim
43 words
Water purification apparatus as in claim 6 wherein the portable container has an integral frame mounted within the container for providing support for the filter means and permitting the filter means to be easily connected to and removed from the pump outlet passage.
Claim 9
Dependent Claim
32 words
Water purification apparatus as in claim 1 further comprising means for mounting a water beaker on said container below the outlet nozzle of the filter means as a receptable for filtered water.
Claim 10
Dependent Claim
53 words
Water purification apparatus as in claim 8 wherein the means for mounting the beaker below the outlet nozzle comprises an integrally molded ring shaped member extending outward from the exterior portion of the container, said means including a stand for supporting the beaker in alignment with the outlet nozzle of the filter means.
Claim 11
Dependent Claim
176 words
In a water purification apparatus having a self-contained water reservoir for untreated water, means for pumping said untreated water from said reservoir, and filter means for receiving the pumped water, said filter means being removably mounted within the apparatus and connected to the pumping means, said filtering means comprising a unitary housing having an inlet for receiving unfiltered water under pressure from the pumping means, a distributor filter means mounted within the housing in juxtaposition to the inlet and having pore openings of a size for removing coarse solid particulate matter from water pumped through the filter means, a particulate filter means mounted above the distributor filter means for removing organic contaminants and odor producing constituents in the water passing through the filter means, an upper filter means mounted above the particulate filter means and having finer pores than said distributor filter means for clarifying the water passing through said upper filter means, and an outlet nozzle formed in the housing adjacent to the upper filter means for passing filtered water out of the filter means.
Claim 12
Dependent Claim
176 words
In a water purification apparatus having a self-contained water reservoir for untreated water, means for pumping said untreated water from said reservoir, and filter means for receiving the pumped water, said filter means being removably mounted within the apparatus and connected to the pumping means, said filtering means comprising a unitary housing having an inlet for receiving unfiltered water under pressure from the pumping means, a distributor filter means mounted within the housing in juxtaposition to the inlet and having pore openings of a size for removing coarse solid particulate matter from water pumped through the filter means, a particulate filter means mounted above the distributor filter means for removing organic contaminants and odor producing constituents in the water passing through the filter means, an upper filter means mounted above the particulate filter means and having finer pores than said distributor filter means for clarifying the water passing through said upper filter means, and an outlet nozzle formed in the housing adjacent to the upper filter means for passing filtered water out of the filter means.
Claim 13
Dependent Claim
59 words
A filter means as in claim 10 wherein the passages in the distributor filter means have pore openings in the range of approximately thirty five to approximately one hundred and twenty five microns in diameter to prevent coarse particles in the water from flowing through the filter, thereby forming a deposit of coarse particles upon the distributor filter device.
Claim 14
Dependent Claim
15 words
A filter means as in claim 10 wherein the particulate filter means comprises activated charcoal.
Claim 15
Dependent Claim
29 words
A filter means as in claim 12 wherein the activated charcoal is coated with a bacteria preventing means to prevent the growth of bacteria within the particulate filter means.
Claim 16
Dependent Claim
27 words
A filter means as in claim 13 wherein the activated charcoal is coated with ionic silver to prevent the growth of bacteria within the particulate filter means.
Claim 17
Dependent Claim
29 words
A filter means as in claim 13 wherein the coating on the activated charcoal comprises a silver salt to prevent the growth of bacteria within the particulate filter means.
Claim 18
Dependent Claim
13 words
A filter means as in claim 15 wherein silver salt is silver nitrate.
Claim 19
Dependent Claim
26 words
A filter means as in claim 10 wherein the upper filter means has passages with pore openings in the range of approximately 10 microns in diameter.
Claim 20
Dependent Claim
25 words
A filter means as in claim 10 wherein the particulate filter means comprises at least one ion exchange resin for removing minerals from the water.
Claim 21
Dependent Claim
33 words
A filter means as in claim 18, further comprising a layer of silver coated charcoal mounted in juxtaposition to the distributor filter to prevent the growth of bacteria within the ion exchange means.
Claim 22
Dependent Claim
33 words
A filter means as in claim 10 wherein the particulate filter means comprises a plurality of ion exchange resins, each of said resins being adapted to remove a particular mineral from the water.
Claim 23
Dependent Claim
34 words
A filter means as in claim 10 wherein said particulate filter means comprises the combination of at least one ion exchange resin and activated charcoal having a silver compound coating upon the activated charcoal.
Claim 24
Dependent Claim
33 words
A filter means as in claim 21 wherein the ion exchange resin is a manganese zeolite blended with the particulate filter means to remove substantially all iron, copper and manganese from the water.
Claim 25
Dependent Claim
141 words
A portable water purification apparatus comprising a base having a pump mounted therein; a container mounted on said base in an upright seal-tight manner, said container having a bottom wall, an upper wall defining a water reservoir compartment therein, and an outlet opening in said bottom wall communicating with said pump for delivering all of the water in said reservoir compartment to said pump; a filter means removably mounted on said bottom wall and in said container within said reservoir compartment, said filter means having an inlet at a lower end connected to an outlet of said pump to receive untreated water therefrom, an outlet nozzle at an upper end extending over the upper edge of said container for discharging treated water, and a particulate filter means for removing contaminates from the water passing from said inlet to said outlet nozzle.
Claim 26
Dependent Claim
141 words
A portable water purification apparatus comprising a base having a pump mounted therein; a container mounted on said base in an upright seal-tight manner, said container having a bottom wall, an upper wall defining a water reservoir compartment therein, and an outlet opening in said bottom wall communicating with said pump for delivering all of the water in said reservoir compartment to said pump; a filter means removably mounted on said bottom wall and in said container within said reservoir compartment, said filter means having an inlet at a lower end connected to an outlet of said pump to receive untreated water therefrom, an outlet nozzle at an upper end extending over the upper edge of said container for discharging treated water, and a particulate filter means for removing contaminates from the water passing from said inlet to said outlet nozzle.
Claim 27
Dependent Claim
46 words
A portable water purification apparatus as set forth in claim 23 wherein said base includes a stand portion for positioning a beaker thereon below said outlet nozzle and said container has an arcuate indentation to permit nesting of a beaker therein while on said stand portion.
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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) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |