Weighing scales – Structural installation – Geographic
Patent
1992-11-12
1995-08-29
Fuller, Benjamin R.
Weighing scales
Structural installation
Geographic
177255, 177DIG9, 177244, 16234, 16270, 16254, 16319, G01G 1902, G01G 2128, G01G 2112, E05D 700
Patent
active
054462487
ABSTRACT:
A center-lock portable truck scale has an end positioning post (4) between sides at ends of a truck scale and a central positioning post (8) positioned centrally in truck-scale sections. Positioning rods (5 and 9), preferably bolts, form positioning bumpers at adjustable distances from the lock posts. Hinges (23, 29 and 49) are employed to connect sides of the scale bridge (11, 12) so that large truck scale decks may be foldable for easy transportation to the site of installation. Scale loading weight is carried on a vertical load-cell pillar (75) that rests pivotally on a load button (77) that is positional in a load-button indentation in a top surface of strain-gauge beams (80). The central positioning post and positioning bolts prevent excessive end-to-end movement while the end positioning posts prevent excessive side-to-side or twisting movement of a scale unit, thereby positioning scale weight directly on load cells (3) in jarring and temperature-change use-conditions for more accurate weighing.
REFERENCES:
patent: 1051538 (1913-01-01), Barcus
patent: 3444942 (1969-05-01), Murphy
patent: 3747716 (1973-07-01), Wilson
patent: 3935914 (1976-02-01), Nordstrom et al.
patent: 4248317 (1981-02-01), Rahav
patent: 4483404 (1984-11-01), Weihs
patent: 4554987 (1985-11-01), Dillon
patent: 4828055 (1989-05-01), Hamilton et al.
patent: 4832140 (1989-05-01), Hafner
patent: 4874050 (1992-10-01), Strasser et al.
patent: 4949798 (1992-08-01), Strasser et al.
First-Weigh Manufacturing, Inc.
Fuller Benjamin R.
Gibson Randy W.
Livingston Edward M.
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