US4361001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collecting accessory for air supported lawn mower
Assignee: FLYMO Ltd A CORP OF UNITED KINGDOM
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Filing: 1981-04-14
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Granted: 1982-11-30
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Expires: 2001-04-14
Abstract
Abstract A hover-type lawn mower being provided with a cover which fits over the shroud or housing for the rotatable blade. The cover is provided with openings so that the air flow therethrough forms an air cushion and also transports cut grass and leaves to a collecting area in the cover. The cover is further provided with releasable fastening means to the shroud, so that the cover can be removed when it is desired to empty the collected cut grass and leaves therein.
Inventors
- 👤 David R. Almond
- 👤 David Baggett
- 👤 Colin Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:27
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/077; A01D43/0775; A01D2101/00; A01D34/00; A01D34/01; A01D34/412; A01D34/63; Y; Y10; Y10S; Y10S56/00; Y10S56/03
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
146 words
In a hover-type lawn mower which when operative is supported by a cushion of air and is provided with a rotatable blade about a vertical axis, a fan wheel rotatable about said axis, a hood shrouding said fan wheel and blade, said hood being provided with a peripheral rim and having at least one opening for air to said air cushion, the improvement comprising: a cover, means releasably fastening said cover to said hood, said cover having at least one opening whereby an air stream created by said fan wheel passing through said opening picks up and transports cut grass, leaves and the like from the ground area to said cover before reaching said fan wheel, and which functions as a collecting chamber for said cut grass, leaves and the like, said air stream thereafter continuing into said fan wheel and thereafter into said air cushion.
Claim 2
Dependent Claim
146 words
In a hover-type lawn mower which when operative is supported by a cushion of air and is provided with a rotatable blade about a vertical axis, a fan wheel rotatable about said axis, a hood shrouding said fan wheel and blade, said hood being provided with a peripheral rim and having at least one opening for air to said air cushion, the improvement comprising: a cover, means releasably fastening said cover to said hood, said cover having at least one opening whereby an air stream created by said fan wheel passing through said opening picks up and transports cut grass, leaves and the like from the ground area to said cover before reaching said fan wheel, and which functions as a collecting chamber for said cut grass, leaves and the like, said air stream thereafter continuing into said fan wheel and thereafter into said air cushion.
Claim 3
Dependent Claim
44 words
A hover-type lawn mower as claimed in claim 1 wherein said opening in said cover is a nozzle opening, and further comprising at least one opening in the hood which communicates with said nozzle opening, the latter being located adjacent to said peripheral rim.
Claim 4
Dependent Claim
24 words
A hover-type lawn mower as claimed in claim 2 wherein said nozzle opening extends over the width of the front part of said mower.
Claim 5
Dependent Claim
29 words
A hover-type lawn mower as claimed in claim 2 wherein said nozzle opening is located at the rear part of said hood adjacent to one of its side walls.
Claim 6
Dependent Claim
23 words
A hover-type lawn mower as claimed in claim 2 further comprising a filter separating each nozzle opening from each opening in said hood.
Claim 7
Dependent Claim
35 words
A hover-type lawn mower as claimed in claim 5 further comprising an electric motor and wherein said cover is provided with means by which a separate cooling air stream can be directed to the motor.
Claim 8
Dependent Claim
156 words
In a hover-type lawn mower which when operative is supported by a cushion of air and is provided with a rotatable blade about a vertical axis, a fan wheel rotatable about said axis, a hood shrouding said fan wheel and blade, said hood being provided with a peripheral rim and having at least one opening for air to said air cushion, the improvement comprising: a cover, means releasably fastening said cover to said hood, said cover having at least one opening which is a nozzle opening, and at least one opening in the hood which communicates with said nozzle opening, the latter being located adjacent to said peripheral rim, and the communication between the nozzle opening and the hood opening forming a collecting chamber in said cover, and said air stream passing through said openings picks up and transports cut grass, leaves and the like from the ground area to said collecting chamber in said cover.
Claim 9
Dependent Claim
156 words
In a hover-type lawn mower which when operative is supported by a cushion of air and is provided with a rotatable blade about a vertical axis, a fan wheel rotatable about said axis, a hood shrouding said fan wheel and blade, said hood being provided with a peripheral rim and having at least one opening for air to said air cushion, the improvement comprising: a cover, means releasably fastening said cover to said hood, said cover having at least one opening which is a nozzle opening, and at least one opening in the hood which communicates with said nozzle opening, the latter being located adjacent to said peripheral rim, and the communication between the nozzle opening and the hood opening forming a collecting chamber in said cover, and said air stream passing through said openings picks up and transports cut grass, leaves and the like from the ground area to said collecting chamber in said cover.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-29 | 1986-05-31 | 1986-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-29 | 1990-05-31 | 1990-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-29 | 1994-05-31 | 1994-11-30 | $7700.00 | Window Closed / Lapsed |