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US 4,679,642 AGranted
Spring-type adjustable mounting for weighing scale flexures
AssigneeOhaus Scale Corporation
InventorsMarilyn A. Brock, Daniel G. Scheffer
Life of this patent
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Abstract
A differential spring mechanism is provided for allowing very fine adjustments of the position of at least one flexure mounting in a weighing scale. Most of the motion of a control device is absorbed by a first relatively weak spring, leaving only a relatively small portion of that motion to be absorbed by a second relatively strong spring to which the flexure mounting is connected.
Claims7
Apparatus for adjusting the position of a flexure mounting in a weighing scale having a base and at least one flexure mounting comprising:
- first spring means for resiliently connnecting the flexure mounting to the base, said first spring means having a relatively high spring constant;
- second spring means having a relatively low spring constant;
- and
- control means movable relative to said base and operatively connected to said first and second spring means so that most of the motion of said control means results in deflection of the second spring means and only a minor portion of said motion results in deflection of the first spring means and the flexure mounting.
1 more element
Dependencies are inferred from the claim text.