Impact load protection for mass-based product dispensers
First Claim
1. A dispenser that controls dispensation of a chemical product based on a change in weight of the chemical product remaining in the dispenser, comprising:
- a weight measurement instrument that generates one or more electrical signals indicative of the weight of the chemical product remaining in the dispenser;
a product holder configured to receive the chemical product; and
an isolation mechanism configured to lift the product holder from a lowered position to a raised position, the isolation mechanism comprising;
an actuator;
a cam operatively connected to the actuator; and
a lift plate configured to engage with the cam and configured to engage with the product holder,wherein rotation of the actuator produces a corresponding rotation of the cam such that an eccentric portion of the cam engages the lift plate and moves the lift plate and the product holder from the lowered position in which the weight of the chemical product is fully supported by the weight measurement instrument to the raised position in which the weight of the chemical product is fully supported by the lift plate.
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Accused Products
Abstract
A chemical product dispenser that controls dispensation of a chemical product based on a change in weight of the chemical product remaining in the dispenser includes an isolation mechanism. The dispenser includes a weight measurement instrument, such as one or more load cells, that measure the weight of the chemical product remaining the dispenser. The isolation mechanism is configured to lift the chemical product from a lowered position in which the weight of the chemical product is fully supported by the load cell(s) to a raised position in which the weight of the chemical product is fully supported by the isolation mechanism. When in the raised position, the dispenser may be loaded with a supply of chemical product with a reduced risk of damage to the weight measurement instrument.
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Citations
21 Claims
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1. A dispenser that controls dispensation of a chemical product based on a change in weight of the chemical product remaining in the dispenser, comprising:
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a weight measurement instrument that generates one or more electrical signals indicative of the weight of the chemical product remaining in the dispenser; a product holder configured to receive the chemical product; and an isolation mechanism configured to lift the product holder from a lowered position to a raised position, the isolation mechanism comprising; an actuator; a cam operatively connected to the actuator; and a lift plate configured to engage with the cam and configured to engage with the product holder, wherein rotation of the actuator produces a corresponding rotation of the cam such that an eccentric portion of the cam engages the lift plate and moves the lift plate and the product holder from the lowered position in which the weight of the chemical product is fully supported by the weight measurement instrument to the raised position in which the weight of the chemical product is fully supported by the lift plate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dispenser that controls dispensation of a chemical product based on a change in weight of the chemical product remaining in the dispenser, comprising:
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a housing having a door pivotally movable between a closed position and an open position; a weight measurement instrument that generates one or more electrical signals indicative of the weight of the chemical product remaining in the dispenser; a product holder positioned inside of the housing and configured to receive the chemical product; and an isolation mechanism mounted on the door of the housing and configured to move the product holder between a lowered position in which the weight of the chemical product is fully supported by the weight measurement instrument when the door is in the closed position and a raised position in which the weight of the chemical product is fully supported by the isolation mechanism. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A dispensing apparatus that controls dispensation of a chemical product based on a change in weight of the chemical product remaining in the dispensing apparatus, the dispensing apparatus comprising:
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a weight measurement instrument that senses the weight of the chemical product remaining in the dispenser; a product holder configured to receive the chemical product; an actuator; a cam operatively connected to the actuator; and a lift plate configured to engage with the cam and to engage with the product holder, wherein rotation of the actuator produces a corresponding rotation of the cam such that an eccentric portion of the cam engages the lift plate, moving the lift plate and the product holder from a lowered position in which the weight of the chemical product is fully supported by the weight measurement instrument to a raised position in which the weight of the chemical product is fully supported by the lift plate and in which the weight measurement instrument is physically isolated from the weight of the chemical product. - View Dependent Claims (21)
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Specification