Weighing scales – Self-positioning – Fluid transmission to pressure gauge
Patent
1983-05-23
1984-12-25
Miller, Jr., George H.
Weighing scales
Self-positioning
Fluid transmission to pressure gauge
177254, G01G 504
Patent
active
044897995
ABSTRACT:
A weighing scale (10) includes a base (12) with an array of cylindrical bores (16) disposed therein. A network of interconnecting channels (18) is formed on the lower surface of the base (12) with a cover (20) disposed thereover. A layer of elastically deformable material (22) is disposed on the other side of the base (12) to cover the bores (16). The base (20) and the elastically deformable layer (22) define deformable chambers (24) within the bores (16). A load bearing layer (34) is disposed over the elastically deformable layer (22) and spaced therefrom by spherical members (32) disposed proximate the longitudinal axis of the bores (16). A locating layer (28) positions the spherical members (32) in their proper place. The deformable chambers (24) and the interconnecting channels (18) comprise a common reservoir that is connected to an expanding bellows type gauge (36). The gauge (36) allows for volumetric displacement of fluid within the deformable chambers (24). Weight applied to the load bearing layer (34) results in deformation of the elastically deformable layer (22) and a volumetric displacement of fluid from the deformable chambers (24) to the expanding bellows type gauge (36). Measurement of this volumetric displacement is converted into a weight measurement that can be directly read from the face of the gauge (36).
REFERENCES:
patent: 2107883 (1938-02-01), Benedek
patent: 2314011 (1943-03-01), Maurer
patent: 2886301 (1959-05-01), Aske
patent: 2932501 (1960-04-01), Hicks
patent: 3191701 (1965-06-01), Gray
patent: 3217818 (1965-11-01), Engelsher et al.
patent: 3464509 (1969-09-01), Gray
patent: 4007800 (1977-02-01), Janach et al.
Load O Meter Corporation brochure on Portable Weighing Devices, "Haenni Scale for Wheel-Loads".
General Electrodynamics Corp.
Howison Gregory M.
Medlock Nina
Miller Jr. George H.
Mills Jerry W.
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