In-Ground Lawn Mowing Apparatus
First Claim
1. An in-ground lawn cutting device, comprising:
- a housing that can be buried at least partly below grade;
a rotatable spool that can be positioned at an elevation above grade when the housing is buried at least partly below grade;
a rotation motor located in the housing and attached to the rotatable spool, the rotation motor being able to cause the rotatable spool to rotate; and
a cutting cord with a weight attached to a distal end of the cord, the weighted distal end being extendable from the rotatable spool while the rotatable spool is rotating, thereby sweeping the cutting cord over a substantially disk-shaped area and trimming the height of vegetation located within the area.
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Accused Products
Abstract
An in-ground lawn cutting device is disclosed that uses a rotating cord to trim and mulch grass much faster than conventional means. A spool rotates at high speed and extends a weighted cord that cuts grass within a circle. The spool height can be slowly lowered to mulch grass as it cuts. When finished, the cord is retracted and the spool can be lowered at least partly below grade. The device can detect the height of surrounding vegetation and/or the presence of nearby obstructions through reflection or transmission between devices of LASER or other light. The device can issue an audible and/or visual alarm when an obstruction is detected, and/or immediately before and during the cutting. In some embodiments the device can be tilted, the cutting cord can be adjusted in length, and/or a controller is included. The controller can be wireless, hand-held, and/or controlled by a hand-held wireless remote.
19 Citations
20 Claims
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1. An in-ground lawn cutting device, comprising:
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a housing that can be buried at least partly below grade; a rotatable spool that can be positioned at an elevation above grade when the housing is buried at least partly below grade; a rotation motor located in the housing and attached to the rotatable spool, the rotation motor being able to cause the rotatable spool to rotate; and a cutting cord with a weight attached to a distal end of the cord, the weighted distal end being extendable from the rotatable spool while the rotatable spool is rotating, thereby sweeping the cutting cord over a substantially disk-shaped area and trimming the height of vegetation located within the area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification