Load weighing and accumulating system and method

Weighing scales – Self-positioning – Electrical current generating or modifying

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

177 1, 177DIG3, G01G 314

Patent

active

043900755

ABSTRACT:
A loader includes a lift arm assembly, raised by hydraulic lift cylinders and carrying a load bucket. Alignment members mounted respectively on the loader frame and lift arm assembly, and visible to the loader operator, identify the weigh position of the lift arm assembly. A pressure to voltage transducer is mounted on one lift cylinder, and is connected in a bridge circuit producing a DC voltage output. The bridge circuit output signal, proportional to the bucket load, is fed to an amplifier, whose output is passed to an analog-to-frequency converter producing pulses at a frequency proportional to the bucket load. An electronic clock allows the converter output pulses to pass through an AND gate to a bucket counter which displays the bucket load, and is automatically reset to zero. The converter pulses are passed to an accumulator counter through a second AND gate. The accumulator counter accumulates the weight of several bucket loads which are loaded onto a transport vehicle; and is reset manually after the vehicle is loaded.
The method includes the steps: detecting the instantaneous pressure in the hydraulic lift cylinder; converting that instantaneous pressure into an electric analog signal proportional to the instantaneous pressure; adjusting that analog signal to eliminate the component which represents the weight of the empty bucket; amplifying the adjusted analog signal; converting the adjusted analog signal to a frequency signal comprising pulses generated at a frequency proportional to the adjusted analog signal; and passing the frequency signal to a pulse counter, through controlled gate means for counting and displaying pulses representing the instantaneous bucket load. The same pulses are passed to a second counter through the same control gate and through an additional control gate to accumulate pulses representative of successive bucket loads.

REFERENCES:
patent: 3662845 (1972-05-01), Pratt
patent: 3984667 (1976-10-01), Loshbough
patent: 4044846 (1977-08-01), Matilainen
patent: 4139069 (1979-02-01), Domis 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

Load weighing and accumulating system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Load weighing and accumulating system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load weighing and accumulating system and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-929818

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