Crane load indicating arrangement

Details Crane load indicating arrangement Crane load indicating arrangement

1977-05-06

1979-01-02

Gruber, Felix D.

Boots, shoes, and leggings

340685, 364567, G08B 2100, G06F 1520

Patent

active

041330323

ABSTRACT:
A crane safe load indicator uses a single low generator unit supplied with operating potentials from a digital storage device via a digital-to-analog converter and sample and hold circuits. The storage device stores information related to the operating characteristics of the crane for each mode of operation thereof thereby eliminating the need for a separate law generator unit for each mode of operation, each of which requires a plurality of potentiometers to provide the proper input-output characteristics.

REFERENCES:
patent: 3740534 (1973-06-01), Kezer et al.
patent: 3819922 (1974-06-01), Horn et al.
patent: 3913690 (1975-10-01), Hutchings et al.
patent: 3965733 (1976-06-01), Hutchings et al.
patent: 4052602 (1977-10-01), Horn et al.
Analog Digital Conversion Handbook, Published by Analog Devices, Inc., Massachussetts, 1972, pp. I-62-I-65 of interest.

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