DEVICE AND METHOD FOR OPERATING A HAND-HELD WORKING APPARATUS

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20130151126A1
SERIAL NO

13693447

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A hand-held working apparatus has an internal combustion engine having a crankshaft which is driven in rotation. The crankshaft drives at least one tool of the working apparatus via a centrifugal clutch. The working apparatus has a device for determining the speed of the internal combustion engine and a control device which controls the internal combustion engine. It is provided that the profile of the speed of the internal combustion engine is evaluated by the control device, and that the engagement speed of the centrifugal clutch is determined from the profile of the speed of the internal combustion engine. A method of operation is also provided.

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Patent Owner(s)

Patent OwnerAddress
ANDREAS STIHL AG & CO KGBADSTR 115 WAIBLINGEN 71336

International Classification(s)

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  • 2012 Application Filing Year
  • F02D Class
  • 1267 Applications Filed
  • 1107 Patents Issued To-Date
  • 87.38 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2012201320142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Böker, Robert Winnenden, DE 4 30
Däschner, Heiko Leutenbach, DE 3 17
Harrer, Michael Pleinfeld, DE 4 35

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Patent Citation Ranking

  • 5 Citation Count
  • F02D Class
  • 3.33 % this patent is cited more than
  • 12 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1118982288434101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 800102030405060708090100110120130140150160170180190200

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