Ball screw, seal material, and seal structure

US9488255B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9488255-B2
Application numberUS-201414565148-A
CountryUS
Kind codeB2
Filing dateDec 9, 2014
Priority dateJun 22, 2012
Publication dateNov 8, 2016
Grant dateNov 8, 2016

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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.

A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the other ends of the female component in the axial direction and including a hole capable of communicating with the inner periphery, a fiber layer having a fitting surface having a convex part capable of being fitted in the male grooves when the male component is inserted into the hole and a surface made of fibers impregnated with rubber or resin, and a rubber or resin layer laminated on a surface opposite to the fitting surface.

First claim

Opening claim text (preview).

What is claimed is: 1. A ball screw comprising: a male component having a plurality of male grooves formed on an outer periphery thereof such that a ball is allowed to roll in the plurality of male grooves; a female component having a plurality of female grooves facing the plurality of male grooves formed on an inner periphery thereof such that the ball is allowed to roll in the plurality of female grooves, and having a circulation path formed therein such that the ball is allow…

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Frequently asked questions

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What does patent US9488255B2 cover?
A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the …
Who is the assignee on this patent?
Nitta Corp
What technology area does this patent fall under?
Primary CPC classification F16J15/3204. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Nov 08 2016 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).