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US 4,052,789 AGranted
Rotary cutting assembly
AssigneeWeed Eater, Inc.
InventorGeorge Charles Ballas, Sr.
Life of this patent
Estimating the term…
Abstract
Apparatus for cutting, trimming, and edging vegetation, and the like, is provided with a rotatable disc-like head having at least one string-like cutting member removably attached thereto and replaceably extending from its periphery for cutting adjacent vegetation and the like. A pair of knife members for cutting the string are provided, as well as drive means for increasing cutting efficiency.
Claims25
Apparatus for cutting vegetation and the like, comprising:
- head means rotatable about an axis in a cutting plane,
- electrically actuated driving means for rotating said head means in said plane,
- a flexible non-metallic line member having a portion coiled within said head means and having an uncoiled portion extending outwardly of the periphery of said head means in said cutting plane,
- a housing supporting and enclosing said driving means,
- handle means attached at one end to said housing and including a switch,
- an electrical harness assembly including a full-wave rectifier connected between said driving means and said switch for actuating said driving means, and
- a cutting blade associated with said housing and spaced from said axis in said cutting plane for trimming said line to a predetermined length upon actuation of said driving means.
4 more elements
Apparatus for cutting vegetation and the like, comprising:
- head means rotatable about an axis in a cutting plane,
- electrically actuated driving means for rotating said head means in said plane,
- a flexible non-metallic line member having a portion coiled within said head means and having an uncoiled portion extending outwardly of the periphery of said head means in said cutting plane,
- a housing supporting and enclosing said driving means,
- handle means attached at one end to said housing and including a switch,
- an electrical harness assembly including a full-wave rectifier connected between said driving means and said switch for actuating said driving means,
- a cutting blade associated with said housing and spaced from said axis and located above said cutting plane, and
- force applying means associated with said blade for cutting said line member when said line member is passed between said blade and said force applying means.
5 more elements
Apparatus for cutting vegetation and the like, comprising:
- head means rotatable about an axis in a cutting plane,
- electrically actuated driving means for rotating said head means in said plane,
- a flexible non-metallic line member having a portion coiled within said head means and having an uncoiled portion extending outwardly of the periphery of said head means in said cutting plane,
- a housing supporting and enclosing said driving means,
- handle means attached at one end to said housing and including a switch,
- an electrical harness assembly including a full-wave rectifier connected between said driving means and said switch for actuating said driving means,
- a first cutting blade associated with said housing and spaced from said axis in said cutting plane for trimming said line to a predetermined length upon actuation of said driving means,
- a second cutting blade associated with said housing and spaced from said axis and located above said cutting plane, and
- force applying means associated with said second blade for cutting said line member to a predetermined length when said line member is passed between said second blade and said force applying means.
6 more elements
As a subcombination, a vegetation trimmer assembly and the like, comprising:
- a length of non-metallic flexible cord,
- rotatable support means for revolving said cord about an axis and in a cutting plane,
- motor means for rotating said support means,
- housing means supporting and enclosing said motor means,
- a first cutting blade associated with said housing means and spaced from said axis in said cutting plane,
- a second cutting blade associated with said housing means and spaced from said axis and located above said cutting plane, and
- force applying means associated with said second blade.
4 more elements
Dependencies are inferred from the claim text.