Weighing scales – With testing
Patent
1980-02-04
1982-02-02
Hartary, Joseph W.
Weighing scales
With testing
73 1B, G01G 2301
Patent
active
043135099
ABSTRACT:
Weighing apparatus for measuring loads and/or calculating the value of loads which includes a weighing device and an evaluating device. The weighing device is provided with a movement responding to the load being weighed and producing a corresponding electrical measurement signal, while the evaluating device translates the electrical measurement signal into a digital readout and also is capable of calculating the value of the load in accordance with a scheduled value for the load being weighed. An electrical cable connects the evaluating device with the weighing device for the purpose of transmitting electrical signals from the weighing device to the evaluating device. A data storage unit is permanently connected to the weighing device for storing constants that modify the output of the movement to compensate for errors inherent in the movement when it is manufactured. Additionally, the data storage device may contain constants for correcting the electrical signal going to the evaluating device in accordance with the environmental conditions in which the weighing apparatus is operated. The data storage unit is sealed and therefore tamperproof and may be located within the housing of the weighing device or in a coupling member attached to the electrical signal transmitting cable extending between the weighing device and the evaluating device, wherein the cable is permanently secured to the weighing device. The coupling member is structured to mate with a coupling member on the evaluating device whereby the weighing device may be used with any evaluating device and be capable of producing accurate weight measurements.
REFERENCES:
patent: 3565194 (1971-02-01), Engle
patent: 3851151 (1974-11-01), Stambera
patent: 4070900 (1978-01-01), Engels
patent: 4084242 (1978-04-01), Conti
patent: 4137979 (1979-02-01), Itani
patent: 4156361 (1979-05-01), Melcher
Hartary Joseph W.
Maatschappij van Berkel's Patent N.V.
Zickert Lloyd L.
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