Process and device for producing phillips-head screwing tools or the like, especially in the form of bits
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 15, 1997
Grant Date -
N/A
app pub date -
Sep 12, 1994
filing date -
Mar 13, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for producing Phillips-head screwing tools or the like, especially in the form of bits, by cold forming from a workpiece section (W) cut to length from a profiled rod. In order to produce bits of high precision, that the workpiece section (W) which is developed at one end with a hexagon profile and adjoining it with a section with supportable front end (16) is introduced, with axial spring-loaded support, into a press tool (P), whereupon the cheek plates (51) of this press tool (P) produce the Phillips-head shape or the like by a displacement towards the center which is controlled by a conical envelope surface (55) which tapers towards the front end (16).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully