Lawn maintenance equipment
First Claim
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1. Lawn maintenance equipment comprising:
- a. a housing having a top wall, sidewalls, and a bottom inlet for air and vegetation;
b. a power driven, generally vertically disposed shaft within said housing;
c. a cutting blade rotatably mounted on said shaft to sweep a generally horizontal plane above said inlet;
d. a chopper blade rotatably mounted on said shaft to sweep a generally horizontal plane above said cutting blade;
e. a discharge port for comminuted vegetation; and
f. means for effecting the flow of air from said inlet downstream to said port;
the improvement which comprises;
first baffle means positioned near said inlet and adapted to effect an increase in the rate of said air flow; and
second baffle means positioned downstream from said first baffle means and extending generally horizontally between said two planes, said second baffle means adapted to effect an increase in the rate of said air flow.
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Accused Products
Abstract
A rotary lawn mower with various interchangeable parts can be utilized not only as a standard lawn mower but also a vegetation chopper or shredder, a leaf blower or a snow blower. A vacuum attachment is also provided to permit inaccessible areas to be maintained.
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Citations
19 Claims
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1. Lawn maintenance equipment comprising:
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a. a housing having a top wall, sidewalls, and a bottom inlet for air and vegetation; b. a power driven, generally vertically disposed shaft within said housing; c. a cutting blade rotatably mounted on said shaft to sweep a generally horizontal plane above said inlet; d. a chopper blade rotatably mounted on said shaft to sweep a generally horizontal plane above said cutting blade; e. a discharge port for comminuted vegetation; and f. means for effecting the flow of air from said inlet downstream to said port; the improvement which comprises; first baffle means positioned near said inlet and adapted to effect an increase in the rate of said air flow; and second baffle means positioned downstream from said first baffle means and extending generally horizontally between said two planes, said second baffle means adapted to effect an increase in the rate of said air flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. Lawn maintenance equipment comprising a housing having a front wall, a rear wall and a top wall, sidewalls, a bottom inlet for air and vegetation and a discharge chute disposed in the upper part of one of said walls, a power driven, generally vertically disposed shaft within said housing, a cutting blade mounted to said shaft in a horizontal plane disposed below said discharge chute, a fan blade fixed to said shaft above said cutting blade to rotate at the same speed as said cutting blade, a baffle mounted to said housing and extending from said front wall generally horizontally between said cutting blade and said fan blade, said baffle being adapted to effect an increase in the rate of air flow and to direct said air flow toroidally in said housing.
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12. Lawn maintenance equipment comprising:
- a housing having a top wall, sidewalls, and a bottom inlet for air and vegetation, said housing having a central cylindrical inner wall depending downwardly from said top wall to define a cylindrical chamber and an annular chamber between said cylindrical wall and said sidewalls, a shaft extending into said chamber, a fan mounted to said shaft, said fan having blades carried within said annular chamber, said annular chamber and said fan blades being dimensioned to provide relatively close clearance between said blades and the adjacent walls;
a cutting blade .Iadd.independent of said fan and removably .Iaddend.mounted to said shaft below said fan .Iadd.and a plate removably mounted in a horizontal plane between said fan and said cutting blade.Iaddend.. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
- a housing having a top wall, sidewalls, and a bottom inlet for air and vegetation, said housing having a central cylindrical inner wall depending downwardly from said top wall to define a cylindrical chamber and an annular chamber between said cylindrical wall and said sidewalls, a shaft extending into said chamber, a fan mounted to said shaft, said fan having blades carried within said annular chamber, said annular chamber and said fan blades being dimensioned to provide relatively close clearance between said blades and the adjacent walls;
Specification