Multi-position, operator-carried, four-cycle engine

Internal-combustion engines – Lubricators – Crankcase – pressure control

Reexamination Certificate

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C184S011100

Reexamination Certificate

active

06863043

ABSTRACT:
A power tool having a rotary implement driven by a four-cycle engine. The engine crankcase is through a passageway which extends through a camshaft to a valve chamber. The rotating shaft member inhibits the escape of lubricating oil when the engine is running while permitting a lubricating oil mist to circulate through the engine.

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patent: 5738062 (1998-04-01), Everts

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