Patent US4082205A successfully refreshed from Google Patents.
US4082205A
Expired / Lapsed
US
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Base for a fine material container
Assignee: ThyssenKrupp Industrial Solutions AG
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Filing: 1976-07-02
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Granted: 1978-04-04
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Expires: 1996-07-02
Abstract
Abstract A base for a container for fine material adapted to be discharged pneumatically from the container. The container base has a generally central material outlet in communication with a number of pneumatic feed channels extending radially inwardly from the periphery, the channels dividing the container base into sector-like sections. Each such section has two upwardly converging, oblique surfaces which meet along a ridge-like edge extending towards the container center and at least one of such surfaces is aeratable from below. Overlying each feed channel is an aeratable, downwardly inclined cover having one or more openings at the periphery of the base through which material may pass into the channel.
Inventors
- 👤 Wolfgang Kluger
- 👤 Jurgen Neumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:02
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/40; B01F33/4092; B65; B65D; B65D88/00; B65D88/54; B65D88/72
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
140 words
A circular base member for a fine material container having a floor provided with a generally centrally located outlet through which such material may be discharged, said base member comprising a bottom having a plurality of circumferentially spaced feed channels therein extending radially inwardly from the periphery of said base member and inclined downwardly toward and in communication with said outlet, the spaces between adjacent channels forming sector-like sections, and a cover interposed between each of said sections and overlying the associated channel, each of said covers being porous for the passage therethrough of aerating gas, each of said covers being inclined downwardly and radially outwardly toward the periphery of said base member, and each of said covers having therein at least one material discharge aperture adjacent the periphery of said base and in communication with the associated feed channel.
Claim 2
Dependent Claim
140 words
A circular base member for a fine material container having a floor provided with a generally centrally located outlet through which such material may be discharged, said base member comprising a bottom having a plurality of circumferentially spaced feed channels therein extending radially inwardly from the periphery of said base member and inclined downwardly toward and in communication with said outlet, the spaces between adjacent channels forming sector-like sections, and a cover interposed between each of said sections and overlying the associated channel, each of said covers being porous for the passage therethrough of aerating gas, each of said covers being inclined downwardly and radially outwardly toward the periphery of said base member, and each of said covers having therein at least one material discharge aperture adjacent the periphery of said base and in communication with the associated feed channel.
Claim 3
Dependent Claim
30 words
A base according to claim 1 wherein each of said sector-like sections has two upwardly converging surfaces which meet and form a ridge extending toward the centre of said base.
Claim 4
Dependent Claim
23 words
A base according to claim 2 wherein at least one of said surfaces is porous for the passage of aerating gas from below.
Claim 5
Dependent Claim
24 words
A base according to claim 2 wherein the converging surfaces of each of said sector-like sections are inclined at different angles to the horizontal.
Claim 6
Dependent Claim
18 words
A base according to claim 4 wherein the surface having the lesser inclination to the horizontal is porous.
Claim 7
Dependent Claim
29 words
A base according to claim 1 wherein each of said covers has more than one discharge aperture therein, each of which is located adjacent the periphery of said base.
Claim 8
Dependent Claim
35 words
A base according to claim 1 including a generally conical discharge cap overlying said material outlet and wherein each of said covers extends from the periphery of said cap toward the periphery of said base.
Claim 9
Dependent Claim
16 words
A base according to claim 1 wherein said central material outlet comprises at least one opening.
Claim 10
Dependent Claim
16 words
A base according to claim 1 wherein said central material outlet comprises a plurality of openings.
Claim 11
Dependent Claim
19 words
A base according to claim 9 wherein said openings are arranged substantially symmetrically about the centre of said base.
Claim 12
Dependent Claim
15 words
A base according to claim 1 wherein each of said channels has a porous bottom.
Claim 13
Dependent Claim
47 words
A base according to claim 1 wherein each of said channels has upwardly extending sides having upwardly and outwardly diverging upper surfaces, and wherein the cover for each of said channels is located substantially at the zone of transition between said sides and said upwardly converging surfaces.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |