Patent US3735692A successfully refreshed from Google Patents.
US3736670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crop driers
Assignee: Individual
•
Filing: 1971-06-07
•
Granted: 1973-06-05
•
Expires: 1991-06-07
Abstract
Abstract A crop drier has an enclosed drying space and a heater which forces heated air through a lower air passage and into contact with crop being moved through the drying space. At the lower aspect of the passage, a debris collecting and cleaning device is positioned. The cleaning device can be displaced relative to the remainder of the drier for debris removal.
Inventors
- 👤 Der Lely A Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:52
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/50; F26B25/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A crop drier comprising an enclosed drying space with an endless conveyor means mounted in said drier to move crop from the rear side of said drying space to the forward and opposite side thereof, forced air heating means located at the lower portion of said rear side to communicate drying air to an air passage within said drier, said air passage extending below said conveyor means and being positioned to allow the drying air from said heating means to rise upwardly through said drying space as well as the crop being conveyed through said space, collecting and cleaning means being located beneath said conveyor means within said dryer to receive debris from the crop being conveyed, said collecting and cleaning means being movable with respect to the remainder of the drier for the ready removal of collected debris.
Claim 2
Dependent Claim
139 words
A crop drier comprising an enclosed drying space with an endless conveyor means mounted in said drier to move crop from the rear side of said drying space to the forward and opposite side thereof, forced air heating means located at the lower portion of said rear side to communicate drying air to an air passage within said drier, said air passage extending below said conveyor means and being positioned to allow the drying air from said heating means to rise upwardly through said drying space as well as the crop being conveyed through said space, collecting and cleaning means being located beneath said conveyor means within said dryer to receive debris from the crop being conveyed, said collecting and cleaning means being movable with respect to the remainder of the drier for the ready removal of collected debris.
Claim 3
Dependent Claim
31 words
A drier as claimed in claim 1, wherein said collecting and cleaning means is positioned adjacent the forward side of said drier and near one end of said endless conveyer means.
Claim 4
Dependent Claim
28 words
A drier as claimed in claim 2, wherein said collecting and cleaning means comprises a conveying member which extends transverse to the path of said endless conveyor means.
Claim 5
Dependent Claim
15 words
A drier as claimed in claim 3, wherein said conveying member is a worm conveyor.
Claim 6
Dependent Claim
28 words
A drier as claimed in claim 1, wherein said collecting and cleaning means is a conveying member which extends substantially over the whole width of said endless conveyor.
Claim 7
Dependent Claim
159 words
A crop drier comprising an enclosed drying space with an endless conveyer means mounted in said drier to move crop from the rear side of said drying space to the forward and opposite side thereof said endless conveyor means including a plurality of horizontally positioned conveyors that move crop through substantially the entire length of said drier, forced air heating means located at the lower portion of said rear side to communicate drying air to an air passage within said drier, said air passage extending below said conveyors and being positioned to allow the drying air from said heating means to rise upwardly through said drying space as well as the crop being conveyed through said space, collecting and cleaning means being located beneath said conveyors within said dryer to receive debris from the crop being conveyed, said collecting and cleaning means being movable with respect to th remainder of the drier for the ready removal of collected debris.
Claim 8
Dependent Claim
159 words
A crop drier comprising an enclosed drying space with an endless conveyer means mounted in said drier to move crop from the rear side of said drying space to the forward and opposite side thereof said endless conveyor means including a plurality of horizontally positioned conveyors that move crop through substantially the entire length of said drier, forced air heating means located at the lower portion of said rear side to communicate drying air to an air passage within said drier, said air passage extending below said conveyors and being positioned to allow the drying air from said heating means to rise upwardly through said drying space as well as the crop being conveyed through said space, collecting and cleaning means being located beneath said conveyors within said dryer to receive debris from the crop being conveyed, said collecting and cleaning means being movable with respect to th remainder of the drier for the ready removal of collected debris.
Claim 9
Dependent Claim
24 words
A drier as claimed in claim 6, wherein at least one side of the drier is screened to permit ventilation above said air passage.
References Cited (Backward Citations)
US2069139A
Cited
US2501487A
Cited
US2623634A
Cited
US2706371A
Cited
US2974797A
Cited
US2975898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |