US4411113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated aeration block for silo bases
Assignee: Claudius Peters AG
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Filing: 1981-03-19
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Granted: 1983-10-25
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Expires: 2001-03-19
Abstract
Abstract A prefabricated aeration block for silo bases in which at least two aeration blocks are mounted on the top side of a flat plate and shaped, hollow support sections are fixed on the bottom side of the plate, defining air channels for distribution of air to the aeration blocks.
Inventors
- 👤 Wilhelm Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:53
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/74; B65D88/741; A; A01; A01F; A01F25/00; A01F25/04; A01F25/08; F; F26; F26B; F26B25/00; F26B25/06; F26B25/08; F26B25/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
A prefabricated aeration units in a silo bases wherein said silo base is constructed of a plurality of such units comprising, a flat plate having a top side and a bottom side with a plurality of air connecting bores therethrough, a plurality of porous aeration blocks adherently affixed to the top side of the flat plate essentially centrally over said air connecting bores, transversely open shaped manifold air distribution support sections on the bottom side of the flat plate having side walls, the said side walls of the transversely open shaped manifold support sections being fixed to the plate, said units being adapted and constructed whereby a plurality may be disposed to be positioned along a bottom of a silo.
Claim 2
Dependent Claim
120 words
A prefabricated aeration units in a silo bases wherein said silo base is constructed of a plurality of such units comprising, a flat plate having a top side and a bottom side with a plurality of air connecting bores therethrough, a plurality of porous aeration blocks adherently affixed to the top side of the flat plate essentially centrally over said air connecting bores, transversely open shaped manifold air distribution support sections on the bottom side of the flat plate having side walls, the said side walls of the transversely open shaped manifold support sections being fixed to the plate, said units being adapted and constructed whereby a plurality may be disposed to be positioned along a bottom of a silo.
Claim 3
Dependent Claim
27 words
The prefabricated aeration units according to claim 1 wherein the porous aeration blocks have a coarse portion sandwiched between a finer upper layer and the flat plate.
Claim 4
Dependent Claim
30 words
The prefabricated aeration units according to claim 2 wherein the power aeration blocks have a recessed cavity and the said cavity of said aeration block is positioned over said bore.
Claim 5
Dependent Claim
39 words
The prefabricated aeration units according to claim 3 wherein the said flat plate is steel and the side walls of the open shaped manifold air distribution support sections are fabricated of steel and are welded to the bottom plate.
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) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |