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US Patent 7231794 Method for manufacturing a worm shaft

Patent 7231794 was granted and assigned to Asmo Co. Ltd. on June, 2007 by the United States Patent and Trademark Office.

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Patent Inventor Names

Koji Kidowaki0

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Article

Patent abstract

An object of the present invention is to provide a method of manufacturing a rotational shaft having a worm, wherein a worm portion has a small bending amount. According to the method of the invention, a worm portion is formed at a worm forming portion by a rolling process with rolling dies, and a small diameter portion is formed at least at one axial end of the worm forming portion, wherein a diameter of the small diameter portion is smaller than a diameter of a bottom of a worm tooth to be formed at the worm forming portion, so that surplus material portion of the worm forming portion can flow toward the small diameter portion.

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US Patent 07231794 Method for manufacturing a worm shaft US Patent 7231794 Method for manufacturing a worm shaft

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Patent Number

072317940

Patent Number

72317940

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edited on 21 May, 2023

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=072317940

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"Entity importer update"

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Is a

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Current Assignee

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

072317940

Date of Patent

June 19, 2007

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Patent Application Number

110121880

Date Filed

December 16, 2004

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=072317940

Patent Primary Examiner

Daniel C. Crane

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Edits on 15 Jun, 2022

"Entity importer update"

edited on 15 Jun, 2022

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Website URL

https://pdfpiw.uspto.gov/.piw?Docid=07231794

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created this topic on 21 Nov, 2021

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US Patent 07231794 Method for manufacturing a worm shaft

Infobox

Is a

Current assignee

Patent jurisdiction

United States Patent and Trademark Office

Patent number

07231794

Date of patent

June 19, 2007

Patent application number

11012188

Date Filed

December 16, 2004

Patent primary examiner

Daniel C. Crane

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