Cutlery – Cutting tools – With blade moving means
Patent
1994-05-23
1996-02-27
Peterson, Kenneth E.
Cutlery
Cutting tools
With blade moving means
30287, 56 127, A01D 5000
Patent
active
054937833
ABSTRACT:
A grass trimming device for removal of grass which overgrows a concrete doughnut positioned on the ground surrounding a sprinkler head of an underground lawn sprinkler system. The device is connectable to a lawn trimmer having a rotating upright output shaft and includes a horizontal support member having a cylindrical strengthening and protecting ring which defines an outer circular perimeter of the device. The device also includes a plurality of freely rotatably mounted cutting blade members connected and downwardly extending from a lower surface of the support member by a threaded bolt, shaft or the like. Each blade member has an inverted L-shape with the horizontal leg thereof rotatably mounted by the bolt to the support member. The upright leg has a lower distal edge which is slightly larger than the doughnut and cooperates in grass cutting action with the lower distal ends of the blade mounting shafts to provide two separate circular cuts into grass grown over the doughnut, one cut being adjacent and slightly larger than the outer edge of the doughnut and the other being slightly larger than the central hole through the doughnut.
REFERENCES:
patent: D242894 (1977-01-01), Harris
patent: 2634571 (1953-04-01), Lawrence
patent: 2850862 (1958-09-01), Asbury
patent: 3062299 (1962-11-01), Koepfinger
patent: 3555680 (1971-01-01), Ford
patent: 3656554 (1972-04-01), Buhner
patent: 3680639 (1972-08-01), Davis
patent: 3747213 (1973-07-01), Green et al.
patent: 3814189 (1974-06-01), Thompson
patent: 3815234 (1974-06-01), Nelson
patent: 3905103 (1975-09-01), Fort et al.
patent: 3918241 (1975-11-01), Stillions
patent: 3923102 (1975-12-01), Morris
patent: 3960218 (1976-06-01), Atchley et al.
patent: 4022283 (1977-05-01), Morgan
patent: 4260026 (1981-04-01), Deckert
patent: 4357752 (1982-11-01), Goodwin
patent: 4369577 (1983-01-01), Gise
patent: 4479302 (1984-10-01), Richter
patent: 4862682 (1989-09-01), Wait et al.
Peterson Kenneth E.
Prescott Charles J.
Pryor Sean A.
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