System for monitoring a level of material, device therefor and m

Details System for monitoring a level of material, device therefor and m System for monitoring a level of material, device therefor and m

1989-03-28

1990-07-17

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318482, 73313, 73321, G01F 2344

Patent

active

049423517

ABSTRACT:
A system for monitoring a level of material held in a confining means, a device therefor and methods of making the same are provided, the system comprising a rotatable reel, an electrically operated motor operatively interconnected to the reel for causing rotation of the reel in either direction of rotation thereof, a flexible support wound on the reel and having a free end, a probe operatively interconnected to the free end of the support to be carried thereby, a brake operatively interconnected to the reel for holding the reel stationary when the brake is in one condition thereof, and a control unit operatively interconnected to the motor and to the brake for causing the brake and the motor to raise and lower the probe by winding up the support on the reel and unwinding the support from the reel, the motor comprising an electrically operated stepper motor.

REFERENCES:
patent: 2869113 (1959-01-01), Reymonenq et al.
patent: 3140609 (1964-07-01), Mayes
patent: 3237593 (1966-03-01), Trotter
patent: 3708159 (1973-01-01), De Bray
patent: 3729667 (1973-04-01), Taylor
patent: 3751185 (1973-08-01), Gottliebson et al.
patent: 4065968 (1978-01-01), Sunagawa
patent: 4402048 (1983-08-01), Tsuchida et al.
patent: 4691113 (1987-09-01), Corvazier et al.
patent: 4708191 (1987-11-01), Block et al.
patent: 4768377 (1988-09-01), Habelmann et al.
patent: 4786846 (1988-11-01), Uchida

Affiliated with

Also associated with

Rating

System for monitoring a level of material, device therefor and m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for monitoring a level of material, device therefor and m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for monitoring a level of material, device therefor and m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-96337