Weighing scales – Plural distinct load holders with common evaluator
Patent
1982-04-12
1984-02-28
Hartary, Joseph W.
Weighing scales
Plural distinct load holders with common evaluator
177211, 177244, G01G 314, G01G 2123
Patent
active
044337418
ABSTRACT:
In a strain gage weighing scale with a load platform, a plurality of foot structures support the platform. The invention is an improvement in each foot structure of a sandwich with a bottom support plate, a pair of spaced first cylindrical roller fulcrums on the plate, a floating beam plate on the first fulcrums and spaced above and coextensive with the bottom plate. A pair of differently spaced and equally offset second cylindrical roller fulcrums on the beam plate support the platform. Suitable strain gages are secured to the beam any place between the closer pair of fulcrums. The entire sandwich is held together by a deformable plastic housing that secures the plates and fulcrums together and is barb-connected to the platform. The strain gages are connected to conventional converting structure measuring the change in resistance under load and calibrated to read weight. The deformable plastic housing holding the sandwich is an integral molding with structural details reducing friction between the parts. The overall result is a lower profile scale for common household use.
REFERENCES:
patent: 2499033 (1950-02-01), Oberholtzer
patent: 2899191 (1959-08-01), Hunt
patent: 3548650 (1970-12-01), Boadle
patent: 3831441 (1974-08-01), Petty
patent: 3894594 (1975-07-01), Oejelid
patent: 3938603 (1976-02-01), Shoberg et al.
patent: 4047427 (1977-09-01), Young
patent: 4177868 (1979-12-01), Sanders
patent: 4355692 (1982-10-01), Ostrelich
Cullen John F.
General Electric Company
Hartary Joseph W.
Platt Leonard J.
Powers George R.
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