Servo door-closer

US9501047B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9501047-B2
Application numberUS-201214358848-A
CountryUS
Kind codeB2
Filing dateNov 6, 2012
Priority dateNov 18, 2011
Publication dateNov 22, 2016
Grant dateNov 22, 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 power-assisted door closer includes an output shaft, a driving mechanism operatively connected to the output shaft, a mechanical energy accumulator for storing closing energy for the door leaf and acting upon the driving mechanism, a motor/generator unit operatively connected to the output shaft and an electrical energy accumulator for storing an assisting energy for the door leaf and being electrically connected to the motor/generator unit.

First claim

Opening claim text (preview).

The invention claimed is: 1. A power-assisted door closer ( 1 ), comprising: an output shaft ( 2 ); a driving mechanism ( 3 ) operatively connected to the output shaft ( 2 ); a mechanical energy accumulator configured to store a closing energy for a door leaf and act upon the driving mechanism ( 3 ); a motor/generator unit ( 5 ) mechanically and directly operatively connected to the output shaft ( 2 ); and an electrical energy accumulator ( 6 ) configured to store assistin…

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Frequently asked questions

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What does patent US9501047B2 cover?
A power-assisted door closer includes an output shaft, a driving mechanism operatively connected to the output shaft, a mechanical energy accumulator for storing closing energy for the door leaf and acting upon the driving mechanism, a motor/generator unit operatively connected to the output shaft and an electrical energy accumulator for storing an assisting energy for the door leaf and being e…
Who is the assignee on this patent?
Dorma Gmbh + Co Kg, Dorma Deutschland Gmbh
What technology area does this patent fall under?
Primary CPC classification E05F3/224. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Nov 22 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).