Linear driver with a grip enhancing thumb plate

Details Linear driver with a grip enhancing thumb plate Linear driver with a grip enhancing thumb plate

1998-08-17

1999-10-19

Scherbel, David A.

Tools

Handle for tool

811771, 811775, 811776, B25G 101

Patent

active

059670061

ABSTRACT:
A linear driver has a drive stem having a first end and a second end and a handle fixed the drive stem so that the drive stem first end extends into a first end of the handle. In order to increase the torque the user may apply to the driver, the driver includes a thumb plate fixed when in its operating position with respect to the drive stem so that the thumb plate extends radially outwardly from the handle at the handle first end so as to permit its engagement by the thumb of a user. The thumb plate may be selectively retractable into the handle when not in use in certain embodiments of the invention, while, in others, the thumb plate remains fixed in its operating position.

REFERENCES:
patent: D241806 (1976-10-01), Johnson
patent: 859006 (1907-07-01), Newley
patent: 1161270 (1915-11-01), Vance
patent: 2487155 (1949-11-01), Loewy
patent: 2938555 (1960-05-01), Paajanen
patent: 3863693 (1975-02-01), Carriker
patent: 4895044 (1990-01-01), Elkins
patent: 5595095 (1997-01-01), Hillinger
The Grantley Company, Annapolis Junction, Maryland "Triple Torque Screwdriver" Flyer--Published prior to 1998.

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