Cutlery – Combined cutlery or combined with ancillary feature – With sharpening feature
Patent
1983-01-20
1984-07-03
Yost, Frank T.
Cutlery
Combined cutlery or combined with ancillary feature
With sharpening feature
30139, 76 25A, B23D 6316
Patent
active
044570694
ABSTRACT:
A sharpening device for a chain saw having an endless saw chain driven by a motor supported by a chain saw housing includes a housing adapted to be mounted to the chain saw housing spaced from the cutters. A grinding assembly having a grinding stone mounted thereon is movably mounted to the housing from a first position spaced from the cutters to a second position wherein the grinding stone is in contact with the cutters, and vice-versa. An actuator assembly is also movably mounted in the housing from a retracted position to an actuated position, and vice-versa. A coupling assembly is provided which moves the grinding assembly to the first position responsive to movement of the actuator assembly to the retracted position. A first spring is mounted between the actuator assembly and the grinding assembly and yieldably urges the actuator assembly toward the retracted position and the grinding assembly toward the second position. A second spring is mounted between the housing and actuator assembly and yeildably urges the actuator assembly toward the retracted position. Thus, when the actuator assembly is moved from the retracted position to the actuated position the grinding assembly is moved from the first position to the second position by means of the force applied by the first spring.
REFERENCES:
patent: 3260287 (1966-07-01), Oehrli
patent: 3465795 (1969-09-01), Tupper
patent: 4062253 (1977-12-01), Dilworth
McCulloch Corporation
Yost Frank T.
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