Vacuum motor control including float switch and in-rush current

Electricity: motive power systems – Motor load – armature current or force control during...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

318482, 15319, H02P 116

Patent

active

054499887

ABSTRACT:
A soft start power control device for a liquid vacuum motor includes a detection component for shutting off the vacuum motor when the vacuum's recovery tank reach full capacity, and in-rush current limiting component for restraining the in-rush current to the motor when the power is switched on, whereby the motor slowly ramps up to its operating speed. The motor is switch by a triac. The device includes a component for preventing the triac from inadvertently triggering at commutation frequency. A snubber circuit is also connected in parallel with the triac to limit the dv/dt characteristic. The detection component includes a float switch to monitor the level of liquid in the recovery tank. The detection component disables the motor once the water reaches a predetermined high level, which then requires the operator to empty the recovery tank before restarting the motor.

REFERENCES:
patent: 4993104 (1991-02-01), Kasper et al.
patent: 5234319 (1993-08-01), Wilder

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

Vacuum motor control including float switch and in-rush current does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum motor control including float switch and in-rush current , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum motor control including float switch and in-rush current will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-407683

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