Ball screw module

US8955404B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8955404-B2
Application numberUS-201113309863-A
CountryUS
Kind codeB2
Filing dateDec 2, 2011
Priority dateAug 29, 2008
Publication dateFeb 17, 2015
Grant dateFeb 17, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Disclosed is a ball screw module including a screw shaft, a nut member, a ball connector, and a circulating device mounted on the nut member. A helical rolling track is formed between the screw shaft and the nut member. The circulating device is in communication with the helical rolling track and has a circulating route. The circulating route includes an intermediate route, two connecting routes connecting the intermediate route, and two guiding sidewalls formed at sides of the circulating route. The guiding sidewalls guide the ball connector to twist in a clockwise direction while the ball connector entering and leaving the intermediate route and guide the ball connector to twist in a counterclockwise direction while the ball connector passing the intermediate route.

First claim

Opening claim text (preview).

The invention claimed is: 1. A ball screw module, comprising: a screw shaft having an outer surface formed with a first helical rolling groove; a nut member being circumferentially disposed around the screw shaft and having an inner surface formed with a second helical rolling groove in position corresponding to the first helical rolling groove, the first helical rolling groove and the second helical rolling groove together forming a helical rolling track; a ball connector hav…

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Frequently asked questions

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What does patent US8955404B2 cover?
Disclosed is a ball screw module including a screw shaft, a nut member, a ball connector, and a circulating device mounted on the nut member. A helical rolling track is formed between the screw shaft and the nut member. The circulating device is in communication with the helical rolling track and has a circulating route. The circulating route includes an intermediate route, two connecting route…
Who is the assignee on this patent?
Kuo Chang-Hsin, Hiwin Tech Corp
What technology area does this patent fall under?
Primary CPC classification F16H25/2214. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).