Portable fastening tool with manual turn on and automatic...

Details Portable fastening tool with manual turn on and automatic... Portable fastening tool with manual turn on and automatic...

B - Operations, Transporting

25

B

81/23, 341/108.1

B25B 21/00 (2006.01) B25B 23/145 (2006.01)

Patent

CA 1143596

PORTABLE FASTENING TOOL WITH MANUAL TURN ON AND AUTOMATIC SHUT OFF Abstract of the Disclosure A portable fastening tool of the type incorporating torque and angle sensors is connected to a data processor which analyzes the torque and angle sensings and generates a shut off signal to terminate tightening. The tool is powered and includes a fluid motor typically energized from a remote source of high pressure air. The data processor is energized by either a battery or an AC source. Termination of tool operation is effected by energizing a solenoid in response to a shut off signal generated by the data processor. In a battery operated embodiment, tool operation is initiated by manual depression of an operating lever while tool termination is effected automatically in response to the shut off signal, This mode of operaton reduces the number of required batteries, prolongs battery life and reduces the number and size of electrical components in the tool.

357715

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