Vibration-isolated rotary tool

Details Vibration-isolated rotary tool Vibration-isolated rotary tool

1990-05-02

1991-07-02

Eley, Timothy V.

Tool driving or impacting

Including means to vibrationally isolate a drive means from...

Handle type holder

173168, 1731621, B25D 1711

Patent

active

050279106

ABSTRACT:
A rotary hand-held powered tool such as a grinder has an outer casing of rigid material and formed with a cavity in which is disposed a motor housing isolated from the casing by elastomer shock-absorbing material of the type that is pourable into the bell-shaped space between the motor housing and interior of the casing and which subsequently cures to become bonded to the interior surface of the casing and to the outer surface of the motor housing. The elastomer material is introduced to the bell-shaped space in laminar form; that is, in a series of stacked layers which vary as to Shore A hardness. The casing has a pair of handles rigidly attached thereto and configured to extend upwardly and forwardly with respect to the position of a user standing behind the casing.

REFERENCES:
patent: 3934657 (1976-01-01), Danielson
patent: 4327807 (1982-05-01), Emonet
patent: 4648468 (1987-03-01), Honsa
patent: 4905772 (1990-03-01), Honsa et al.

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