US4224770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outdoor grain pit cover
Assignee: WAYSIDE Manufacturing CO Inc
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Filing: 1978-12-12
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Granted: 1980-09-30
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Expires: 1998-12-12
Abstract
Abstract An outdoor grain pit cover is disclosed for excluding of rain water and the like from a pit constructed for below ground temporary storage of grain transportable into and out of the pit by an auger. The cover includes a sleeve for protecting the housing of the auger, and further includes a rectangular hatch or door used to cover a chute or trough for loading grain from the grain pit into trucks when the elevators are being unloaded. Means for stabilizing the cover are also disclosed.
Inventors
- 👤 James A. Petty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:05
CPC Classifications
A; A01; A01F; A01F25/00; A01F25/13
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
A protective rigid cover assembly for used in the underground storage of materials, comprising rigid pit cover means for covering an underground pit and for excluding outside access to the pit and a peripherally mounted sleeve to house feed means for introducing materials into the pit and withdrawing stored materials from the pit, wherein said cover means comprises a generally frusto-conical rigid plate for shedding of rain water, said sleeve comprises an arched peripheral opening to permit access into the pit by said feed means, and said cover assembly is for use in the temporary underground storage of grain.
Claim 2
Dependent Claim
99 words
A protective rigid cover assembly for used in the underground storage of materials, comprising rigid pit cover means for covering an underground pit and for excluding outside access to the pit and a peripherally mounted sleeve to house feed means for introducing materials into the pit and withdrawing stored materials from the pit, wherein said cover means comprises a generally frusto-conical rigid plate for shedding of rain water, said sleeve comprises an arched peripheral opening to permit access into the pit by said feed means, and said cover assembly is for use in the temporary underground storage of grain.
Claim 3
Dependent Claim
36 words
The structure as defined in claim 1 wherein said pit cover comprises a plurality of triangular segments arranged in a generally frusto-conical configuration, one vertex of each of said segments converging by forming an apex assembly.
Claim 4
Dependent Claim
49 words
The structure as defined in claim 2 wherein said apex assembly includes a thickened apex portion, an eye hook extending upwardly through said thickened apex portion for anchoring of the pit cover to secure the pit cover during exposure to high winds, and for lifting the pit cover upwardly.
Claim 5
Dependent Claim
28 words
The structure as defined in claim 3 wherein adjacent segments form a ridge at which reinforcing means are provided for imparting strength and durability to the pit cover.
Claim 6
Dependent Claim
31 words
The structure as defined in claim 4 wherein said reinforcing means comprises reinforcing ribs an inverted V-shaped channel having fins, each of which is attached along the edge of adjacent segments.
Claim 7
Dependent Claim
47 words
The structure as defined in claim 5 wherein said sleeve is provided with a pair of wings to impart mechanical stability to said arched opening and to provide a base for anchoring attachment of sealing means over the opening for blocking the opening during periods of disuse.
Claim 8
Dependent Claim
35 words
The structure as defined in claim 6 wherein said sealing means comprises a water impervious flexible material for sealing said opening and preventing entrance into the pit of rain, snow, animal pests, and the like.
Claim 9
Dependent Claim
40 words
The structure as defined in claim 7 wherein said pit has a peripherally and outwardly extending loading chute and said pit cover includes in addition a hatch to cover said chute, said hatch having handle means for upward lifting thereof.
Claim 10
Dependent Claim
40 words
The structure as defined in claim 8 wherein said hatch comprises a rectangular plate attached to and pivotable upon the periphery of said pit cover, and said handle means comprises a pair of upwardly extending handles attached to the hatch.
Claim 11
Dependent Claim
31 words
The structure as defined in claim 9 wherein said pit cover has a periphery provided with a collecting trough for gathering and directing collected rain water away from said underground pit.
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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) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |