Method and apparatus for removing aquatic plants

Details Method and apparatus for removing aquatic plants Method and apparatus for removing aquatic plants

1987-08-31

1989-08-01

Weiss, John

Harvesters

Marine

56 9, 5640017, 5640007, 172720, A01D 710

Patent

active

048523372

ABSTRACT:
A method of and rake for removal of aquatic plants; the method has the steps of pulling a rake over an underwater bottom, engaging aquatic plants with flexible, resilient teeth and a flexible, resilient filament strung between the teeth, pulling the plant out of the bottom with the filament and distributing stress among the teeth through the filament when the rake snags an immovable obstruction; the rake has a cross bar, a plurality of elongate flexible and resilient teeth attached to the bar, and a flexible and resilient high tensile strength filament strung to and between all of the teeth. The filament pulls out plants and distributes stress among the teeth. An improved rake tooth has structure for holding a transverse filament adjacent a tip of the tooth.

REFERENCES:
patent: 623708 (1899-05-01), Ensley
patent: 3633678 (1972-01-01), Ledue
patent: 3749177 (1973-07-01), Keyser et al.
patent: 4157119 (1979-06-01), Litchfield
patent: 4224786 (1980-09-01), Langlin et al.

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