Invention Grant
- Patent Title: Apparatus and method for producing springs
- Patent Title (中): 用于生产弹簧的装置和方法
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Application No.: US13130660Application Date: 2009-11-18
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Publication No.: US09038432B2Publication Date: 2015-05-26
- Inventor: Bernhard Graf , Michael Egli
- Applicant: Bernhard Graf , Michael Egli
- Applicant Address: CH Wittenbach
- Assignee: Spuhl GmbH
- Current Assignee: Spuhl GmbH
- Current Assignee Address: CH Wittenbach
- Agency: The Webb Law Firm
- Priority: CH1834/08 20081125
- International Application: PCT/CH2009/000365 WO 20091118
- International Announcement: WO2010/060223 WO 20100603
- Main IPC: B21F3/00
- IPC: B21F3/00 ; B21F1/02 ; B21F35/00

Abstract:
Using a method for producing a spring from a spring wire, turns of a first spring part are produced, wherein said produced turns move in a first direction. Thereafter, turns of a second spring part are produced, wherein said produced turns move in a second direction which is different from, in particular opposite of, the first direction. Such a method can be used to produce a spring having a plurality of spring parts.
Public/Granted literature
- US20110226380A1 Apparatus and Method for Producing Springs Public/Granted day:2011-09-22
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