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US 12,072,227 B2Granted
Method and device for zeroing a scale
AssigneeWipotec GmbH
InventorsBernd Zinke, Michael Rothfuchs
Life of this patent
Estimating the term…
Abstract
A method and a scale for the performance thereof performs a zeroing process as soon as a product conveyed across a weighing platform leaves the weighing platform.
Claims17
A method for automatic zeroing of a scale, the scale comprising a weighing platform supported by a load cell, the method including:
- (a) receiving a series of discrete products on the weighing platform and discharging the series of discrete products from the weighing platform, the series of discrete products being conveyed in a conveying direction to and from the weighing platform;
- (b) performing a series of weighing cycles with the scale, each weighing cycle for weighing a set of one or more of the series of discrete products;
- (c) for each respective one of the series of weighing cycles, where a final one of the series of discrete products received on the weighing platform for that respective weighing cycle has been discharged from the weighing platform and the weighing platform is not loaded by a subsequent one of the discrete products in the series of discrete products after the final one of the series of discrete products for that respective weighing cycle, automatically triggering a zeroing function for the scale at an end of that respective weighing cycle;
- and
- (d) automatically canceling the triggered zeroing function where the subsequent one of the discrete products reaches the weighing platform before the triggered zeroing function has successfully concluded.
2 more elements
An automatic scale comprising:
- (a) a weighing platform operable for receiving a series of discrete products at an upstream side and for discharging the series of discrete products from a downstream side, the series of discrete products being conveyed in a conveying direction, each discrete product in the series of discrete products having a leading edge in the conveying direction and a trailing edge in the conveying direction;
- (b) a load cell supporting the weighing platform, the load cell and weighing platform being operable to perform a series of weighing cycles, each weighing cycle for weighing a set of one or more of the series of discrete products;
- and
- (c) a control unit operable for (i) for each respective one of the series of weighing cycles, where a final one of the series of discrete products received at the weighing platform for that respective weighing cycle has left the weighing platform and the weighing platform is not loaded by a subsequent one of the discrete products in the series of discrete products after the final one of the series of discrete products, automatically triggering a zeroing function for the scale at an end of that respective weighing cycle, and for (ii) automatically canceling the triggered zeroing function where the subsequent one of the discrete products reaches the weighing platform before the triggered zeroing function has successfully concluded.
1 more element
Dependencies are inferred from the claim text.