Elevator load weighing

Details Elevator load weighing Elevator load weighing

1989-11-30

1991-01-22

Skaggs, H. Grant

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187131, 7386254, 177132, B66B 514

Patent

active

049863916

ABSTRACT:
In an elevator system, sensors 14, 15 are placed at points of inflection 11 on suspension rods 3, 5 in an elevator pendulum car support assembly 1 for the purpose of measuring weight. Sensors placed at such points of inflection measure the tension in the rods and lead to electrical circuitry 20 to cause an output signal proportional to the load on the cab independent of bending moments exerted upon the ends of the rods.

REFERENCES:
patent: 2411023 (1946-11-01), Bruns
patent: 2761038 (1956-08-01), Bruns et al.
patent: 3164014 (1965-01-01), Redner
patent: 3323606 (1967-06-01), Bruns et al.
patent: 3610342 (1971-10-01), Stainken
patent: 4078623 (1978-03-01), Ohta et al.
patent: 4223752 (1980-09-01), Belcher
patent: 4330836 (1982-05-01), Donofrio et al.
patent: 4573542 (1986-03-01), Schlegel et al.
patent: 4899852 (1990-02-01), Salmon et al.

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