Fluid handling – Systems – Programmer or timer
Reexamination Certificate
2006-03-14
2006-03-14
Lee, Kevin (Department: 3753)
Fluid handling
Systems
Programmer or timer
C137S615000
Reexamination Certificate
active
07011108
ABSTRACT:
The invention relates to a device for monitoring the safety of an articulated mast (22), especially of a concrete distribution mast, whose mast segments (23to27) are controlled via a remote control (50) and a control device (62) that is responsive to the remote control signals using a computer-assisted circuit arrangement (80). Safety monitoring is made possible by the provision of an interrupter element (112, 112′) in the control device (62) which disrupts, via a delay member (116), the connection to the control inputs of the actuators (92, 94) associated drive units and/or the feed units (98, 100) for the purpose of power or pressured oil feed once the remote control elements (52) of the remote control device (50) are in the off-position.
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Benckert Hartmut
Von Bäumen Paul
Lee Kevin
Pendorf & Cutliff
Putzmeister Aktiengesellschaft
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