Patent US4308676A successfully refreshed from Google Patents.
US4308676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn mower power take-off and accessories
Assignee: Individual
•
Filing: 1980-07-16
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Granted: 1982-01-05
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Expires: 2000-07-16
Abstract
Abstract A lawn mower power take-off located above the lawn mower deck of the housing and adapted to be used to power lawn implements or accessories including a snow blower having a unique air assist mechansim.
Inventors
- 👤 Maurice S. Doane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:23
CPC Classifications
A; A01; A01D; A01D42/00; A01D42/06; A01D42/08; E; E01; E01H; E01H5/00; E01H5/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
In combination with a lawn mower including a housing connected to and supported by a plurality of ground engaging wheels, the housing including a substantially horizontally disposed deck and a downwardly disposed flange extending from the outer edges of the deck, an engine disposed above and supported by the deck, a vertically disposed drive shaft driveably rotated by the engine, and a cutting blade operably connected to the drive shaft at a point below the deck, the improvement comprising: a drive train operably connected to said drive shaft; said implement being a blower including an enclosure having a substantially open front and having an open slot in the rear thereof; said deck including an opening at a point above said cutting blade; and an air duct interconnecting the open slot of the enclosure and the opening in the deck, whereby air is forced through the air duct and out of the open front of the enclosure.
Claim 2
Dependent Claim
156 words
In combination with a lawn mower including a housing connected to and supported by a plurality of ground engaging wheels, the housing including a substantially horizontally disposed deck and a downwardly disposed flange extending from the outer edges of the deck, an engine disposed above and supported by the deck, a vertically disposed drive shaft driveably rotated by the engine, and a cutting blade operably connected to the drive shaft at a point below the deck, the improvement comprising: a drive train operably connected to said drive shaft; said implement being a blower including an enclosure having a substantially open front and having an open slot in the rear thereof; said deck including an opening at a point above said cutting blade; and an air duct interconnecting the open slot of the enclosure and the opening in the deck, whereby air is forced through the air duct and out of the open front of the enclosure.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 wherein the open slot in the enclosure is disposed at a point above the deck of said lawn mower.
Claim 4
Dependent Claim
18 words
The apparatus of claim 1 further comprising: air paddles attached near the free ends of said cutting blade.
Claim 5
Dependent Claim
19 words
The apparatus of claim 1 further comprising: a shield attached to the bottom side of said lawn mower housing.
Claim 6
Dependent Claim
19 words
The apparatus of claim 3 further comprising: a shield attached to the bottom side of said lawn mower housing.
Claim 7
Dependent Claim
29 words
The apparatus of claim 3 wherein said air paddles extend upwardly and rearwardly from the cutting edge of said cutting blade at an angle of approximately forty-five degrees (45°).
Claim 8
Dependent Claim
16 words
The apparatus of claim 4 wherein said shield includes a plurality of suction holes formed therein.
Claim 9
Dependent Claim
32 words
The apparatus of claim 4 wherein said shield has one end hingedly attached to the blower enclosure, and the opposite end attached to the downwardly disposed flange of said lawn mower housing.
Claim 10
Dependent Claim
22 words
The apparatus of claim 6 wherein said air paddles include a pair of spaced horizontal tabs which receive the cutting blade therebetween.
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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |