US Patent 7818967 Method for controlling a crane actuator
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Patent abstract
The invention relates to a method and an apparatus for controlling an actuator (7, 8) of a crane by control means (10) in a situation where the lifting power of the actuator (7, 8) of the crane is increased temporarily by an auxiliary valve arrangement (11). In the invention, control properties of the actuator (7, 8) are changed when the temporarily increased lifting power is applied to limit the speed of the actuator (7, 8).
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Patent Inventor Names
Ari Lehtinen0
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US Patent 07818967 Method for controlling a crane actuator US Patent 7818967 Method for controlling a crane actuator
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Patent Number
078189670
Patent Number
78189670
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Patent Jurisdiction
Patent Number
078189670
Date of Patent
October 26, 2010
0Patent Application Number
117263010
Date Filed
March 21, 2007
0Official Website
Patent Primary Examiner
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US Patent 07818967 Method for controlling a crane actuator
Infobox
Is a
Patent jurisdiction
Patent number
07818967
Date of patent
October 26, 2010
Patent application number
11726301
Date Filed
March 21, 2007
Patent primary examiner
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