DE4390874D2 - Method and device for the production of screwdriving tools, in particular in the form of bits, in the form of a cross recess or the like - Google Patents

Method and device for the production of screwdriving tools, in particular in the form of bits, in the form of a cross recess or the like

Info

Publication number
DE4390874D2
DE4390874D2 DE4390874D DE4390874D DE4390874D2 DE 4390874 D2 DE4390874 D2 DE 4390874D2 DE 4390874 D DE4390874 D DE 4390874D DE 4390874 D DE4390874 D DE 4390874D DE 4390874 D2 DE4390874 D2 DE 4390874D2
Authority
DE
Germany
Prior art keywords
bits
production
cross recess
screwdriving tools
screwdriving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE4390874D
Other languages
German (de)
Other versions
DE4390874C1 (en
Inventor
Werner Goedtner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wera Werk Hermann Werner GmbH and Co KG
Original Assignee
Wera Werk Hermann Werner GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4207964A external-priority patent/DE4207964A1/en
Priority claimed from DE4207963A external-priority patent/DE4207963A1/en
Application filed by Wera Werk Hermann Werner GmbH and Co KG filed Critical Wera Werk Hermann Werner GmbH and Co KG
Priority claimed from PCT/EP1993/000530 external-priority patent/WO1993017814A1/en
Application granted granted Critical
Publication of DE4390874D2 publication Critical patent/DE4390874D2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

DE4390874D 1992-03-13 1993-03-09 Method and device for the production of screwdriving tools, in particular in the form of bits, in the form of a cross recess or the like Expired - Lifetime DE4390874D2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4207964A DE4207964A1 (en) 1992-03-13 1992-03-13 Cold forming process and equipment esp. for screw driver bits of cross slot form - with hexagonal head formed at one end of round bar blank and cross-slot profile formed at other end with concentric closing pile
DE4207963A DE4207963A1 (en) 1992-03-13 1992-03-13 Screwing tool bits mfr. - in which workpiece is subjected to axial spring forces during the forming operation
PCT/EP1993/000530 WO1993017814A1 (en) 1992-03-13 1993-03-09 Process and device for producing cross-head screwing tools or the like, especially in the form of bits
DE4390874A DE4390874C1 (en) 1992-03-13 1993-03-09 Cold forming process and equipment esp. for screw driver bits of cross slot form

Publications (1)

Publication Number Publication Date
DE4390874D2 true DE4390874D2 (en) 1995-01-26

Family

ID=27203515

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4390874D Expired - Lifetime DE4390874D2 (en) 1992-03-13 1993-03-09 Method and device for the production of screwdriving tools, in particular in the form of bits, in the form of a cross recess or the like

Country Status (1)

Country Link
DE (1) DE4390874D2 (en)

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8181 Inventor (new situation)

Free format text: GOEDTNER, WERNER, 72764 REUTLINGEN, DE

D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition