Patent US4181243A successfully refreshed from Google Patents.
US4181243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for filtering beverages
Assignee: Reid Plastics Inc
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Filing: 1978-03-23
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Granted: 1980-01-01
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Expires: 1998-03-23
Abstract
Abstract A filter element is provided at the inlet of a spigot for dispensing beverages from a reservoir or cooler. The filter mechanism preferably includes an open, cup-shaped member which is desirably threaded to the inlet shaft of the spigot to act as a fastener for mounting the spigot to the reservoir. The filter element is quickly insertable into and removable from the filter receiving member by a push fit. The preferred filter element includes two apertured end walls, filter paper positioned immediately adjacent the inner faces of each of the apertured end plates, and activated charcoal between the filter paper.
Inventors
- 👤 Carl E. Frahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:45
CPC Classifications
B; B67; B67D; B67D3/00; B67D2210/00; B67D2210/00002; B67D2210/00005; C; C02; C02F; C02F1/00; C02F1/28; C02F1/283; Y; Y10; Y10T; Y10T137/00; Y10T137/794; Y10T137/8122
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
217 words
An apparatus for filtering and dispensing a beverage at essentially atmospheric pressure from a reservoir comprising: a spigot adapted to be mounted to the reservoir to dispense liquid therefrom, said spigot having a hollow member extending through an opening in the wall of the reservoir and having fastening means at the interior porton of the hollow member for fastening said spigot to said reservoir and an enlarged portion for positioning the spout of the spigot externally of the reservoir; a filter receiving means adapted to receive a filter element positioned at the entrance of the spigot interior of the reservoir to filter the beverage passing through the spigot, said filter receiving means having fastening means complementary to the fastening means of the spigot and being of sufficient size and constructed and arranged to mount the spigot to the reservoir by the interaction between the fastening means of the spigot and of the filter receiving means, so that liquid to be dispensed from said spigot passes through a filter element mounted in said filter receiving means; and a filter element having a complementary configuration to that of the opening of the filter receiving means, said filter receiving means and filter element being constructed and arranged so that the filter element can be push-fitted into the filter receiving means.
Claim 2
Independent Claim
217 words
An apparatus for filtering and dispensing a beverage at essentially atmospheric pressure from a reservoir comprising: a spigot adapted to be mounted to the reservoir to dispense liquid therefrom, said spigot having a hollow member extending through an opening in the wall of the reservoir and having fastening means at the interior porton of the hollow member for fastening said spigot to said reservoir and an enlarged portion for positioning the spout of the spigot externally of the reservoir; a filter receiving means adapted to receive a filter element positioned at the entrance of the spigot interior of the reservoir to filter the beverage passing through the spigot, said filter receiving means having fastening means complementary to the fastening means of the spigot and being of sufficient size and constructed and arranged to mount the spigot to the reservoir by the interaction between the fastening means of the spigot and of the filter receiving means, so that liquid to be dispensed from said spigot passes through a filter element mounted in said filter receiving means; and a filter element having a complementary configuration to that of the opening of the filter receiving means, said filter receiving means and filter element being constructed and arranged so that the filter element can be push-fitted into the filter receiving means.
Claim 3
Dependent Claim
34 words
The apparatus of claim 1 which further comprises means for holding said filter receiving means and said filter element snugly together in response to insertion of said filter element into said filter receiving means.
Claim 4
Dependent Claim
31 words
The apparatus of claim 2 in which holding means comprises a taper formed in at least one of the complementary mating surfaces of the filter receiving means and the filter element.
Claim 5
Dependent Claim
51 words
The apparatus of claim 1 in which said filter element comprises a hollow shell, end plates enclosing the longitudinal ends of said hollow shell, means forming a plurality of apertures in each of the end plates, and filter material carried in the chamber defined by the hollow shell and end plates.
Claim 6
Dependent Claim
31 words
The apparatus of claim 4 in which the filter material comprises filter paper adjacent to the inside face of each apertured end plate and activated charcoal disposed between the end plates.
Claim 7
Dependent Claim
20 words
The apparatus of claim 4 in which the shell and one of the end plates are formed in one piece.
Claim 8
Dependent Claim
23 words
The apparatus of claim 5 in which the apertures in the end plates comprise many relatively small apertures arrayed in a mesh pattern.
Claim 9
Dependent Claim
49 words
The apparatus of claim 1 in which the fastenings means on the spigot hollow member are external threads and the fastening means on the filter receiving means is a complementary threaded aperture and is constructed and arranged to cooperate with the spigot to mount the spigot to the reservoir.
Claim 10
Dependent Claim
32 words
The apparatus of claim 8 in which the filter receiving means has a cup-shaped configuration and in which the fastening means comprises threaded fastening means at the closed end of the cup.
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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) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |