Controller for boring apparatus

Cutting by use of rotating axially moving tool – With randomly-actuated stopping means – Responsive to condition of tool or tool-drive

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

408 11, 408 15, 408 16, 408 76, B23B 4514

Patent

active

050077767

ABSTRACT:
A controller for a magnetic base drill unit provided with a safety circuit which is constructed by connecting in series a relay provided with contacts for cutting the power supply to the drill motor and feed motor, a resistor and a diode. The relay is actuated when a voltage higher than the predetermined voltage to be applied to the feed motor in the hole cutting mode is applied to the feed motor during the hole cutting, thereby cutting the power supply to the drill and feed motors. The controller has a means for confirming the operation of the safety circuit which apply a test voltage higher than the maximum predetermined voltage to be applied during the hole cutting to the feed motor in the fall mode of the electric drill.

REFERENCES:
patent: 2977825 (1961-04-01), Buck
patent: 4559577 (1985-12-01), Shoji et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Controller for boring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controller for boring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controller for boring apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-417775

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.