Weighing scales – Self-positioning – Electrical current generating or modifying
Patent
1988-01-29
1989-02-07
Miller, Jr., George H.
Weighing scales
Self-positioning
Electrical current generating or modifying
177238, 7386265, G01G 314, G01G 2128, G01L 122
Patent
active
048025402
ABSTRACT:
A weighing scales structure comprising an elongate unitary tension rod having an elongate reaction end portion with inner and outer ends and a force-transmitting coupling part at its outer end, an elongate working end portion with inner and outer ends and a force-transmitting coupling part at its outer end, a central elongate elastic portion extending between and integrally joined with the inner end portions of the reaction and working portions; and, a plurality of strain gauges fixed to the elastic portion. The scales next include an elongate housing freely engaged about the central elastic portion and the inner end of the working end portion and releasably clampingly engaged with and about the inner end portion of the reaction portion. A circuit board and a battery power supply are mounted within the housing. The circuit board carries a bridge circuit in which the strain gauges are connected and a light emitting digital readout device which is visible through a window in the housing.
REFERENCES:
patent: 2414161 (1947-01-01), Moore
patent: 2428012 (1947-09-01), Collins et al.
patent: 2447566 (1948-08-01), Decker et al.
patent: 2576417 (1987-11-01), Ruge
patent: 2582886 (1952-01-01), Ruge
patent: 2943480 (1960-07-01), Nelting
patent: 3105564 (1963-10-01), Ormond
patent: 3201982 (1965-08-01), Kennedy
patent: 4523653 (1985-06-01), Scrivener et al.
Grabovac Bosko
Kurtovic Zlatko
Consolidated Devices Inc.
Miller Jr. George H.
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