Weighing scales – Shock absorber – damper – Load-holder transmission mechanism
Patent
1977-03-11
1978-01-31
Miller, Jr., George H.
Weighing scales
Shock absorber, damper
Load-holder transmission mechanism
G01G 2306
Patent
active
040711030
ABSTRACT:
An auxiliary dynamic compensation device for a gravimetric dispenser, comprises a piston suspended by a pliant and non-extensible connection which is adapted for attachment to the beam or equivalent weighing member of the weighing device of the dispenser and is vertically movable with limited lateral clearance in a vessel containing a liquid in which the piston does not float. A bypass passage interconnects the interior of the vessel below the piston and the interior of the vessel above the piston and contains a non-return valve arranged so as to close the said passage if the piston begins to descend in the vessel and to open it if the piston begins to rise, whereby the piston can follow upward movements of the beam, but those downward movements thereof which are more rapid than those of the piston, are accompanied by a variation in the load applied by the pliant connection due to the retardation of the descent of the piston.
REFERENCES:
patent: 837496 (1906-12-01), Osborne
patent: 1584884 (1926-05-01), Merrick
patent: 2383404 (1945-08-01), Meeker et al.
patent: 2639136 (1953-05-01), Van Duyn
patent: 3677356 (1972-07-01), Goodwin
patent: 3985190 (1976-10-01), Kammerer et al.
Miller Jr. George H.
Trayvou S.A.
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