Electric tool

US9014933B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9014933-B2
Application numberUS-201414211723-A
CountryUS
Kind codeB2
Filing dateMar 14, 2014
Priority dateMar 29, 2013
Publication dateApr 21, 2015
Grant dateApr 21, 2015

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An electric tool has a housing, a motor disposed in the housing, an output shaft, a first planetary gear transmission mechanism, having a power input member, disposed between the motor and the output shaft, and a locking mechanism, having a power output member. The locking mechanism has a locked state and an unlocked state. When torsion is transmitted from the motor to the output shaft, the locking mechanism is in the unlocked state, and the output shaft is driven by the motor to rotate to perform electric operation. When the output shaft reversely receives a force, the locking mechanism is in the locked state, and the power input member of the first planetary gear transmission member is locked to perform manual operation.

First claim

Opening claim text (preview).

What is claimed is: 1. An electric tool, comprising: a housing; a motor disposed in the housing; an output shaft; a first planetary gear transmission mechanism disposed between the motor and the output shaft, the first planetary gear transmission mechanism comprising a power input member; and a locking mechanism comprising a power output member and having a locked state and an unlocked state; wherein when a torsion is transmitted from the motor to the output shaft, the l…

Assignees

Inventors

Classifications

  • B25B21/00Primary

    Operations & Transport · mapped topic

  • F16H1/28Primary

    Mechanical Engineering · mapped topic

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

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Frequently asked questions

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What does patent US9014933B2 cover?
An electric tool has a housing, a motor disposed in the housing, an output shaft, a first planetary gear transmission mechanism, having a power input member, disposed between the motor and the output shaft, and a locking mechanism, having a power output member. The locking mechanism has a locked state and an unlocked state. When torsion is transmitted from the motor to the output shaft, the loc…
Who is the assignee on this patent?
Chervon Hk Ltd
What technology area does this patent fall under?
Primary CPC classification B25B21/00. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Apr 21 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).