WASTE BIN SCALE, LOAD CELL AND METHOD OF MEASURING A WASTE BIN LOAD
First Claim
1. A scale to measure a cantilevered load carried by lift members of a lift system, the scale comprising:
- a base coupleable to the lift system;
a lift member support system; and
a plurality of load cells coupled between the base and the lift member support system, each load cell comprising;
a structural member having an aperture extending therethrough which defines at least one pair of offset strain gauge mounting surfaces that are parallel to a horizontal reference plane; and
an arrangement of strain gauges to sense deformations at least at one or more locations on the at least one pair of offset strain gauge mounting surfaces.
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Accused Products
Abstract
A waste bin scale to measure a cantilevered load carried by lift members of a lift system. The waste bin scale includes a base coupleable to the lift system, a lift member support system; and a plurality of load cells. Each load cell is coupled between the base and the lift member support system, and includes a structural member configured to deform during application of a load applied by the waste bin, where the deformation is indicative of the applied load. Other related waste bin scales, load cells therefor and methods of measuring waste bin scale loads are also provided.
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Citations
29 Claims
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1. A scale to measure a cantilevered load carried by lift members of a lift system, the scale comprising:
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a base coupleable to the lift system; a lift member support system; and a plurality of load cells coupled between the base and the lift member support system, each load cell comprising; a structural member having an aperture extending therethrough which defines at least one pair of offset strain gauge mounting surfaces that are parallel to a horizontal reference plane; and an arrangement of strain gauges to sense deformations at least at one or more locations on the at least one pair of offset strain gauge mounting surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A load cell of a scale for measuring at least a portion of a cantilevered load carried by lift members of a lift system, the load cell comprising:
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a structural member having at least one aperture extending therethrough that defines at least one pair of offset strain gauge mounting surfaces at each of opposing ends thereof that are parallel to a horizontal reference plane of the load cell; and a first bridge arrangement of strain gauges including one pair of strain gauges mounted on one of the parallel offset mounting surfaces located at one of the opposing ends of the load cell and including one pair of strain gauges mounted on one of the parallel offset mounting surfaces located at the other one of the opposing ends of the load cell; and a second bridge arrangement of strain gauges including one pair of strain gauges mounted on one of the parallel offset mounting surfaces located at one of the opposing ends of the load cell and one pair of strain gauges mounted on one of the parallel offset mounting surfaces located at the other one of the opposing ends of the load cell. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of measuring a load carried by a pair of lift members of a lift system configured to movably position the lift members, the method comprising:
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obtaining signals from an arrangement of strain gauges of each of a plurality of load cells that are positioned between the lift system and the lift members, wherein obtaining signals from each load cell includes obtaining, for each load cell, strain gauge signals from a respective first bridge arrangement of strain gauges mounted on parallel horizontal mounting surfaces located at each end of opposing ends of the load cell and obtaining strain gauge signals from a respective second bridge arrangement of strain gauges mounted on parallel mounting surfaces located at each of the opposing ends of the load cell; and processing the signals to obtain a load value indicative of a load shared by the pair of lift members. - View Dependent Claims (27, 28, 29)
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Specification