Measuring and testing – Liquid level or depth gauge – Weighing type
Reexamination Certificate
2006-05-02
2006-05-02
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid level or depth gauge
Weighing type
C073S299000
Reexamination Certificate
active
07036370
ABSTRACT:
A spring assembly and an apparatus incorporating the same. The spring assembly includes a base block configured to be rigidly fixed to a frame. A pair of nominally identical spring rods is cantilevered from the base block in a first direction. Each rod has a length, a proximal end rigidly fixed to the base and a free distal end. The distal ends are configured to engage a linkage member to resist movement of the linkage member by axial deflection of said rods away from the first direction. The spring rods are each preferably characterized as substantially cylindrical in shape and formed from steel or other suitable spring material. A fulcrum preferably provides support to an intermediary portion of the spring assembly to adjust the spring force range. The spring assembly is preferably utilized in a liquid level indicator to indicate a height of a column of liquid in a vessel.
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Williams Hezron
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