Browse Prior Art Database

Screwdriver for Unslotted Knurled Head Screws

IP.com Disclosure Number: IPCOM000111066D
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Davis, BJ: AUTHOR [+2]

Abstract

The invention is a screwdriver provided with an internal cylindrical socket that replaces the traditional blade or common hexagonal socket, as shown in the Figure.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 65% of the total text.

Screwdriver for Unslotted Knurled Head Screws

      The invention is a screwdriver provided with an internal
cylindrical socket that replaces the traditional blade or common
hexagonal socket, as shown in the Figure.

      The objective of the screwdriver is to permit the tightening or
loosening of difficult to reach unslotted and socketless knurled head
connectors at the back of personal computers and workstations.  If
there are many adjacent cables plugging into a PC or workstation or
if there are other obstructions, these screws are difficult to reach
and manipulate by hand.  The invention would facilitate the removal
or tightening of these screws by enhancing accessibility.

The main features of the invention are:

1.  The Plastic Material used to Create Screwdriver Socket: This
    material is very durable, low cost and pliable.  In addition, it
    is safer than metal by eliminating the possibility of shock.

2.  The Sight Internal Taper of the Cylindrical Socket: The taper
    assures that the socket engages the screw head.  Also, the taper
    permits accommodating wear in the plastic material.

3.  Friction Drive: With no direct drive, i.e., neither teeth nor
    blade, there is no possibility of overtightening the screw due to
    the built-in torque limiting feature of slippage.

      The invention is operated as a socket head screwdriver.  The
operator holds the invention and applies the socket cup to engage the
knurled head of...