Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 3,955,451
Hand-Held Spin-Type Driver Tool
Patentee:
William F. Lohness (exact or similar names) - Jonesville, MI

USPTO Classifications:
81/177.1

Tool Categories:

Assignees:
Vaco Products Co. - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Feb. 14, 1975
Granted: May 11, 1976

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Dressler, Goldsmith, Clement & Gordon, Ltd. - patent attorneys

Abstract

A new form of assembly for a high torque capability spin-type driver tool is disclosed. The tool has a shaft of uniform cross-sectional dimension with an elongated segment of substantially reduced cross-sectional dimension or shape at one end. A plurality of fin-shaped members extend radially outward along the reduced cross-sectional portion to provide a coupling for applying the turning force or torque to the shaft. The shaft is adapted for use with handled driver tools, such as screwdrivers and nutdrivers as well as with power driving tools. The reduced cross-sectional dimension segment and fin-shaped members present an axially smooth surface about which a press-fitted handle grip will contiguously engage. The fin-shaped members prevent the handle grip from slipping rotationally about the shaft in the presence of torsional forces.

Copyright © 2002-2024 - DATAMP