Worm wheel

US8991277B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8991277-B2
Application numberUS-201313751250-A
CountryUS
Kind codeB2
Filing dateJan 28, 2013
Priority dateFeb 7, 2012
Publication dateMar 31, 2015
Grant dateMar 31, 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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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Each tooth of a worm wheel has a first tooth flank in which a helical surface portion is arranged on one side in a rotational axis direction of the worm wheel and a concavely curved surface portion is arranged on the other side in the rotational axis direction, and a second tooth flank in which a concavely curved surface portion is arranged on the one side in the rotational axis direction and the helical surface portion is arranged on the other side in the rotational axis direction.

First claim

Opening claim text (preview).

What is claimed is: 1. A worm wheel comprising: a plurality of teeth configured to mesh with teeth of a worm gear, each of the plurality of teeth having a first tooth flank on a first side in a rotational direction and a second tooth flank on a second side in the rotational direction, each of the first tooth flank and the second tooth flank having a helical surface portion and a concavely curved surface portion, the concavely curved surface portion having a shape configured to fol…

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What does patent US8991277B2 cover?
Each tooth of a worm wheel has a first tooth flank in which a helical surface portion is arranged on one side in a rotational axis direction of the worm wheel and a concavely curved surface portion is arranged on the other side in the rotational axis direction, and a second tooth flank in which a concavely curved surface portion is arranged on the one side in the rotational axis direction and t…
Who is the assignee on this patent?
Jtekt Corp
What technology area does this patent fall under?
Primary CPC classification F16H55/22. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 31 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).