Sheet material dispenser with perforation sensor and method
First Claim
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1. A method of dispensing sheet material, comprising:
- providing a dispenser for containing a source of sheet material, the dispenser comprising at least one rotatable roller, a rotation monitor configured to monitor the amount of rotation of the roller to thereby determine the amount of sheet material traveling downstream from the roller, a brake configured to selectively brake rotation of the roller, and an outlet for dispensing sheet material, the method comprising;
passing sheet material from the source to the outlet, wherein the sheet material contacts the roller and the roller rotates;
monitoring the amount of rotation of the roller to thereby determine the amount of sheet material dispensed; and
activating the brake when a predetermined amount of sheet material is dispensed, the braking of the roller causing tension in the sheet material when an end portion of the sheet material is pulled.
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Abstract
A dispenser for dispensing sheet material including a plurality of spaced perforations may include a housing defining an interior for accommodating a source of the sheet material, and an outlet through which the sheet material may be dispensed. The device may also include a perforation sensor configured to sense perforations in the sheet material, disposed in the interior of the housing. The perforation sensor may include at least one light receptor, and at least a portion of the perforation sensor may be positioned in the housing to contact sheet material traveling from the source to the outlet, thereby spreading perforations in the sheet material.
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Citations
3 Claims
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1. A method of dispensing sheet material, comprising:
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providing a dispenser for containing a source of sheet material, the dispenser comprising at least one rotatable roller, a rotation monitor configured to monitor the amount of rotation of the roller to thereby determine the amount of sheet material traveling downstream from the roller, a brake configured to selectively brake rotation of the roller, and an outlet for dispensing sheet material, the method comprising; passing sheet material from the source to the outlet, wherein the sheet material contacts the roller and the roller rotates; monitoring the amount of rotation of the roller to thereby determine the amount of sheet material dispensed; and activating the brake when a predetermined amount of sheet material is dispensed, the braking of the roller causing tension in the sheet material when an end portion of the sheet material is pulled. - View Dependent Claims (2, 3)
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Specification