Reduced vibration portable gas operated hand saw

Details Reduced vibration portable gas operated hand saw Reduced vibration portable gas operated hand saw

1989-01-17

1989-10-31

Yost, Frank T.

Cutlery

Cutting tools

Saw

30122, 30500, B23D 4516, B25F 300, B26B 1100

Patent

active

048767972

ABSTRACT:
A portable self-contained gas operated hand saw is provided having a housing with a carburetor an engine therein, a handle having a trigger coupled to the carburetor mounted at one end of the housing and a saw blade mounted at the other end of the housing. The saw blade housing has a worm gear driven rotatable shaft to which a saw blade may be keyed for rotation. The worm gear is driven by a centrifugal clutch driven by the engine. Fans are provided for rotation with the clutch and saw blade for cooling the saw in addition to the normal cooling of the engine. Anti-vibration means are provided to isolate the handle and trigger from the engine. The engine is suspended from a rubber mount allowing it to vibrate freely, thereby isolating vibration from the saw blade housing, saw plate, and handle and trigger.

REFERENCES:
patent: 2694457 (1954-12-01), Lawrence
patent: 4140209 (1979-02-01), Muller
patent: 4620367 (1986-11-01), Tubesing et al.
patent: 4807727 (1989-02-01), Paulik
patent: 4809438 (1989-03-01), Nagashima et al.

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