US3782549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and aerator device
Assignee: Individual
•
Filing: 1972-10-24
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Granted: 1974-01-01
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Expires: 1992-10-24
Abstract
Abstract The invention relates to a filtering and aerating device comprising a filter cartridge formed by a stack of grooved washers positioned in a chamber for flow of water through the stack of washers and out of the outlet of the device. The outlet has an associated port for entry of air into the filtered jet of water to aerate the latter. The chamber in which the stack is positioned is designed to contain a deodorizing and purifying substance to remove odors from the water and the inlet of the device is adapted to be removably connected to a source of water, such as to the neck of a bottle, for example, an air entry tube extending axially through the unit having one end positioned in the bottle and its other end in connection with the exterior to permit free flow of water through the unit when the bottle is inverted.
Inventors
- 👤 J Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:20
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/001; C02F1/003; E; E03; E03C; E03C1/00; E03C1/02; E03C1/08; E03C1/084; C02F2201/00; C02F2201/002; C02F2201/006; C02F2307/00; C02F2307/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
197 words
A filtering and aerating device comprising a hollow body having an inlet at one end and an outlet at the other end, means for connecting the inlet to a liquid container, a filter cartridge positioned in said hollow body and extending axially thereof, said hollow body encompassing said cartridge and being spaced therefrom to define a chamber, said filter cartridge comprising a stack of juxtaposed washers each having radiating grooves on at least one surface thereof and a central opening therein, said openings defining a central passageway closed at its upper end adjacent the inlet, said closed end having an axial bore, said passageway being open at its other end, said passageway serving as a path through which liquid may flow from the inlet into said hollow body and through said grooves into said passageway to the outlet, an air entry tube extending axially through said axial bore and protruding at one end beyond said inlet, the other end of the tube being in communication with the exterior adjacent said outlet, and a plurality of air inlet ports adjacent said outlet for admission of air from the exterior into the stream of water passing through said outlet.
Claim 2
Dependent Claim
197 words
A filtering and aerating device comprising a hollow body having an inlet at one end and an outlet at the other end, means for connecting the inlet to a liquid container, a filter cartridge positioned in said hollow body and extending axially thereof, said hollow body encompassing said cartridge and being spaced therefrom to define a chamber, said filter cartridge comprising a stack of juxtaposed washers each having radiating grooves on at least one surface thereof and a central opening therein, said openings defining a central passageway closed at its upper end adjacent the inlet, said closed end having an axial bore, said passageway being open at its other end, said passageway serving as a path through which liquid may flow from the inlet into said hollow body and through said grooves into said passageway to the outlet, an air entry tube extending axially through said axial bore and protruding at one end beyond said inlet, the other end of the tube being in communication with the exterior adjacent said outlet, and a plurality of air inlet ports adjacent said outlet for admission of air from the exterior into the stream of water passing through said outlet.
Claim 3
Dependent Claim
18 words
The combination set forth in claim 1 in which said inlet has a flexible connecting sleeve associated therewith.
Claim 4
Dependent Claim
40 words
The combination set forth in claim 2 in which said sleeve has a plurality of spaced annular ribs on its outer periphery to provide a liquid-tight seal with respect to the neck of a bottle into which it is inserted.
Claim 5
Dependent Claim
19 words
The combination set forth in claim 1 in which said chamber has a charge of granulated deodorizing chemicals therein.
Claim 6
Dependent Claim
97 words
The combination set forth in claim 1 in which said hollow body comprises a central portion in the form of a frustoconical member of transparent material, a cup-shaped connecting member positioned on one end of said central portion, a hollow ferrule positioned on the other end of said central portion, a retaining stirrup having a cross member resting against said cup-shaped connecting member and having the ends of its legs detachably connected to said ferrule, said ferrule having a port in its side wall, the other end of said air entry tube being connected to said port.
Claim 7
Dependent Claim
44 words
The combination set forth in claim 5 in which said central member has a reduced diameter portion at its lower end, a ring encompasses said reduced diameter portion, said ring having a plurality of circumferentially spaced air passageways therethrough, said ferrule encompassing said ring.
Claim 8
Dependent Claim
122 words
The combination set forth in claim 1 which said hollow body comprises a central portion in the form of a frusto-conical member of transparent material, a cup-shaped connecting member positioned on one end of said central portion, a hollow ferrule positioned on the other end of said central portion, a retaining stirrup having a cross member resting against said cup-shaped connecting member and having the ends of its legs detachably connected to said ferrule, said ferrule having a plurality of circumferentially spaced ports in its side wall, the other end of said air entry tube extending into said ferrule, said other end being plugGed at its extremity and having an opening in its side wall substantially aligned with said circumferentially spaced ports.
Claim 9
Dependent Claim
45 words
The combination set forth in claim 7 in which an additional tube is positioned in said ferrule, one end of said additional tube being connected to one of said circumferentially spaced ports and the other end of said tube extending axially downward in said ferrule.
References Cited (Backward Citations)
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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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |