Variable damping subassembly for weigh cell
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 31, 1984
Grant Date -
N/A
app pub date -
Feb 12, 1982
filing date -
Feb 12, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A damping subassembly for a weigh cell or the like comprises a sprocket wheel, a spool-like valve and a perforated piston disc assembled coaxially, the sprocket and the valve being mounted for movement in unison as the sprocket is rotated about its axis. When the sprocket-valve combination is rotated, its axial separation from the perforated disc is varied. The sprocket, valve and perforated disk are mounted to the weighing platform for axial movement in such a way that sprocket, valve and disc move upwardly and downwardly. A fixed-position bracket has an aperture in which a removable dashpot cup is mounted, the aperture and cup also being coaxially mounted relative to the sprocket, valve and piston disc. The valve-piston disc assembly moves axially into the cup through the aperture in the bracket. By rotating the sprocket, the valve-to-piston disc spacing is varied thereby causing the resistance of the movement of the valve-piston subassembly in the viscous material within the dashpot cup to be varied as desired. The cup is made to enable quick and easy rotary engagement or disengagement with the aperture in the bracket.
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