Earth working – Lawn aerator or perforator – or plug remover
Patent
1980-02-21
1985-11-05
Shapiro, Paul E.
Earth working
Lawn aerator or perforator, or plug remover
74875, A01B 4502
Patent
active
045507830
ABSTRACT:
A self-propelled aerator including a chassis having a handle, an aerator rotor, and an engine having an idle speed. A throttle operatively connected with the engine is movable between a normally idle position for operating the engine at the idle speed and an advanced position for operating the engine at above the idle speed. An aerator drive is movable between a normally disengaged position rendering the aerating rotor inoperative and an engaged position drivingly connecting the aerating rotor with the engine. A control mechanism moves the aerator drive from the disengaged position to the engaged position before moving the throttle from the idle position to the advanced position and moves the throttle from the advanced position to the idle position before moving the aerator drive from the engaged position to the disengaged position. The aerating rotor is mounted on the rear end portion of chassis for rotation relative thereto, and the handle is attached to the rear end portion. The chassis is adapted to pivot relative to a front support when the handle is moved vertically upwardly, thereby lifting the aerating rotor off the ground. A rear support is mounted on the rear end portion of the chassis and is movable between a transport position, in which it supports the aerating rotor from the ground, and an operational position in which the rotor supports the rear end portion from the ground and the rear support limits the depth of penetration of the rotor into the ground.
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patent: 2835182 (1958-05-01), Smithburn
patent: 2864298 (1958-12-01), Pearson, Jr.
patent: 3134269 (1964-05-01), Shimanckas
patent: 3272030 (1966-09-01), Blozis
patent: 3375740 (1968-04-01), Bottum
Outboard Marine Corporation
Shapiro Paul E.
LandOfFree
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