System for monitoring load and angle for mobile lift device

Electricity: motive power systems – Positional servo systems – With protective or reliability increasing features

Reexamination Certificate

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Details

C318S623000, C414S563000, C212S277000

Reexamination Certificate

active

07489098

ABSTRACT:
A mobile lift device having a load moving device capable of engaging a load is provided. The mobile lift device includes one or more systems for stabilizing the mobile lift device during operation of the load moving device. According to one exemplary embodiment, the mobile lift device is a heavy duty wrecker having a rotatable boom assembly. The heavy duty wrecker comprises a monitoring system for stabilizing the wrecker during operation of the boom assembly. The monitoring system comprises a plurality of sensors and a monitoring circuit coupled to the sensors to generate a force signal representative of at least one force being applied to the wrecker based upon the transmitted signals.

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The Examiner created a drawing showing the relationship of a horizontal line, a vertical line, a hypotenuse line (the boom) and a vehicle inclination angle which together represent a simplified trianglar relationship of a mobile crane for lifting a load using a cable or a rope.
International Search Report for PCT/US2007/080854, date of mailing Feb. 6, 2008, 2 pages.
Written Opinion for PCT/US2007/080854, date of mailing Feb. 6, 2008, 8 pages.
International Search Report for PCT/US2006/042197, date of mailing Apr. 12, 2007, 3 pages.
Written Opinion for PCT/US2006/042197, date of mailing Apr. 12, 2007, 5 pages.
International Search Report and Written Opinion for Application No. PCT/US2006/042197, mailing date Apr. 12, 2007, 8 pages.

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