US3722820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fertilizing attachment for lawn mower
Assignee: Individual
•
Filing: 1971-03-22
•
Granted: 1973-03-27
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Expires: 1991-03-22
Abstract
Abstract A turbo-powered attachment to a gas-engine powered lawn mower suitable for dispensing liquid fertilizers, insecticides and fungicides, connected to the exhaust stack of said engine for passage of high velocity gases therethrough, said attachment having a hollow turbo-shaft driven at high rotational speed by the high velocity exhaust gases, a supply tank with a conduit connected to one end of the hollow turbo-shaft, a valve for regulating liquid flow therethrough connected to a centrifugal spray nozzle at the other end of the hollow turbo-shaft, said attachment being adapted for mounting on the handlebar of the mower.
Inventors
- 👤 J Klint
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:15
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/14; A01D2101/00; Y; Y10; Y10S; Y10S239/00; Y10S239/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A lawn treating attachment having a dispensing tank and a flow control means in fluid communication therewith for internal combustion engine powered lawn mowers comprising: a. a treating fluid supply means; b. a turbo-housing having an open-bottom cylindrical shroud and a cover plate mounted to the top thereof; c. a straddle bearing support coaxially mounted within said cover plate; d. a hollow turbo-impeller shaft having one end in fluid communication with the said supply means and rotatably mounted in the straddle bearing support with its other end extending beyond the open bottom of the shroud; e. a turbo-impeller means mounted on said turbo-shaft within the cylindrical shroud; f. at least one turbo-jet gas nozzle means mounted on the cylindrical shroud in flow communication with the engine exhaust and directed to impinge the exhaust gas on the turboimpeller; and g. a centrifugal spraying nozzle mounted on and in fluid communication with the other end of said hollow shaft.
Claim 2
Dependent Claim
157 words
A lawn treating attachment having a dispensing tank and a flow control means in fluid communication therewith for internal combustion engine powered lawn mowers comprising: a. a treating fluid supply means; b. a turbo-housing having an open-bottom cylindrical shroud and a cover plate mounted to the top thereof; c. a straddle bearing support coaxially mounted within said cover plate; d. a hollow turbo-impeller shaft having one end in fluid communication with the said supply means and rotatably mounted in the straddle bearing support with its other end extending beyond the open bottom of the shroud; e. a turbo-impeller means mounted on said turbo-shaft within the cylindrical shroud; f. at least one turbo-jet gas nozzle means mounted on the cylindrical shroud in flow communication with the engine exhaust and directed to impinge the exhaust gas on the turboimpeller; and g. a centrifugal spraying nozzle mounted on and in fluid communication with the other end of said hollow shaft.
Claim 3
Dependent Claim
40 words
A lawn treating attachment as set forth in claim 1, wherein the turbo-impeller means comprises a turbo-disc mounted on the turbo-shaft within said shroud adjacent the cover plate and having a plurality of radial turbo-impeller blades mounted to the turbo-disc.
Claim 4
Dependent Claim
46 words
A lawn treating attachment as set forth in claim 1, wherein the turbo-jet gas nozzle means comprises a nozzle directed tangentially relative to the cylindrical shroud, and said spray nozzle is adjustable on said impeller shaft toward and away from the open bottom of the shroud.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |