Patent US3946646A successfully refreshed from Google Patents.
US3946646A
Expired / Lapsed
US
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Dust-repelling apparatus
Assignee: Individual
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Filing: 1974-10-02
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Granted: 1976-03-30
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Expires: 1994-10-02
Abstract
Abstract A dust-repelling apparatus for a vehicle of the type having a driver's seat accessible to dust and an operating instrument of the type which builds up dust and is arranged ahead of the driver's seat, said apparatus comprising at least one source of air current arranged between the driver's seat and the operating instrument with the discharge of the blast air current directed in the viewing direction of the driver. Preferably the source of the air current is at least one ventilator being directed toward the operating instrument and having a pressure effect opposite to the current of the dust built up by the operating instrument.
Inventors
- 👤 Johann Gassner, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:44
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/1252
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
In a work vehicle having a front end in the direction of travel of the vehicle, a cab area and a seat in the cab area for the driver which faces toward the front end, said vehicle having a dust generating mechanical implement attached at its front end and ahead of the seat, which dust moves toward the driver during vehicular travel, the herein invention comprising: forced air flow generating means mounted on said vehicle between said seat and said front end, said air flow generating means being forwardly directed for directing a forced air discharge in a stream frontwardly of the seat and establishing a principal suction area about the seat, said forced air flow generating means comprises at least one ventilator, and an open frame transversely of the vehicle, said frame constituting mounting means for mounting said ventilator for adjustment on and relative to said vehicle.
Claim 2
Dependent Claim
148 words
In a work vehicle having a front end in the direction of travel of the vehicle, a cab area and a seat in the cab area for the driver which faces toward the front end, said vehicle having a dust generating mechanical implement attached at its front end and ahead of the seat, which dust moves toward the driver during vehicular travel, the herein invention comprising: forced air flow generating means mounted on said vehicle between said seat and said front end, said air flow generating means being forwardly directed for directing a forced air discharge in a stream frontwardly of the seat and establishing a principal suction area about the seat, said forced air flow generating means comprises at least one ventilator, and an open frame transversely of the vehicle, said frame constituting mounting means for mounting said ventilator for adjustment on and relative to said vehicle.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 wherein the mounting means mounts said ventilator for vertical adjustment relative to said vehicle.
Claim 4
Dependent Claim
19 words
The apparatus of claim 2 wherein the mounting means mounts said ventilator for transverse adjustment relative to said vehicle.
Claim 5
Dependent Claim
22 words
The apparatus of claim 3 including a wall mounted on said vehicle rearward of said seat and transversely elongated across the vehicle.
Claim 6
Dependent Claim
42 words
The apparatus of claim 3 wherein the mounting means mounting the ventilator on the vehicle includes a strut fixed transversely across the vehicle and a frame pivotally engaged with the strut, said ventilator being secured to said frame for pivotal adjustment therewith.
Claim 7
Dependent Claim
29 words
The apparatus of claim 5 including a protective screen arranged on said frame in surrounding relation to said ventilator and means for slidably adjusting said screen on said frame.
Claim 8
Dependent Claim
30 words
The apparatus of claim 1 and a wall located behind said seat arranged transverse to the direction of travel of the vehicle in the area of action of the ventilator.
Claim 9
Dependent Claim
11 words
The apparatus of claim 1 wherein the ventilator has transparent blades.
References Cited (Backward Citations)
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US2123448A
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US2817281A
Cited
US2916326A
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US3112002A
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US3776358A
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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) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |