Construction machine

US8943874B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8943874-B2
Application numberUS-201113071847-A
CountryUS
Kind codeB2
Filing dateMar 25, 2011
Priority dateMar 26, 2010
Publication dateFeb 3, 2015
Grant dateFeb 3, 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.

The present disclosure relates to a construction machine having an undercarriage; a superstructure rotatably supported relative to the undercarriage by a revolving roller connection; and a control system, wherein measuring devices are arranged in the revolving roller connection for the force measurement in the directions of pulling and compression, and the control system determines the force in the axis direction of the axis of rotation as well as the torque which is caused by the eccentricity of the force with respect to the axis of rotation from the detected measured values of the measuring devices. From this, improved monitoring of the operational safety and stability of such a construction machine is achieved.

First claim

Opening claim text (preview).

The invention claimed is: 1. A construction machine comprising: an undercarriage; a superstructure rotatably supported relative to the undercarriage about a vertical axis by a revolving roller connection; one or more force measuring devices arranged in a region of the revolving roller connection; and a control system receiving information from the one or more measuring devices including a ring-shaped measuring element coupled to the revolving roller connection and determinin…

Assignees

Inventors

Classifications

  • B66C23/905Primary

    Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

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Frequently asked questions

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What does patent US8943874B2 cover?
The present disclosure relates to a construction machine having an undercarriage; a superstructure rotatably supported relative to the undercarriage by a revolving roller connection; and a control system, wherein measuring devices are arranged in the revolving roller connection for the force measurement in the directions of pulling and compression, and the control system determines the force in…
Who is the assignee on this patent?
Lerner Thomas, Bohnacker Roland, Liebherr Werk Ehingen
What technology area does this patent fall under?
Primary CPC classification B66C23/905. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 03 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).