A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes at least a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and at least a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with at least one protrusion element extending perpendicularly from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.

A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with a plurality of protrusion elements being spaced along the rotational axes and protruding perpendicular from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.

A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes at least a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and at least a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with at least one protrusion element extending perpendicularly from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.

Systems, methods, and apparatuses for optimizing performance of a product dispenser are provided herein. Depending on the circumstances surrounding the product dispenser (e.g., the environment, the type or habits of users or individual users, etc.), initial dispensing parameter settings of the product dispenser may be undesirable. Using monitored usage data, optimized dispensing parameters can be determined to achieve more desirable usage of the product dispenser (e.g., decrease waste, power save, increase efficiency, etc.). Additionally, using bounding parameters and/or information from the environment (e.g., nearby product dispensers) can lead to further optimized performance of the product dispenser. User or group specific optimized dispensing parameters can also be determined and used.

An electronic dispenser for dispensing flexible sheet material. A control circuit in the housing receives a plurality of signals and controls dispensing of the sheet material from the housing. A tear bar is mounted within the housing for severance of sheet material by the user. A pivotally mounted pawl member is located proximate to the tear bar such that movement of sheet material into the tear bar for severance pivots the pawl member from a first position to a second position. A signal means associated with the pawl member is located such that movement of the pawl member to the second position causes the signal means to send a signal to notify the control circuit that the sheet material has been removed. The dispensing mechanism is operative in a first mode to be responsive to a signal from a proximity sensor to dispense a sheet of material, and is operative in a second mode to dispense a next sheet in response to the signal means being activated by movement of the pawl member to the second position in response to dispensed sheet material being removed from the dispenser.

A sheet product dispenser for dispensing sheet product from a supply of sheet product reduces accumulation of the sheet product in the chute. The dispenser comprises a housing including a chute having a sheet product dispensing opening, a sheet product feed roller assembly disposed in the housing and configured to feed sheet product from the supply of sheet product into the chute, and a pusher disposed in the housing and configured to engage the sheet product fed from the sheet product feed roller assembly at a location downstream from the sheet product feed roller assembly and push the sheet product fed from the sheet product feed roller assembly toward the dispensing opening to reduce accumulation of the sheet product in the chute. A related method of reducing accumulation of the sheet product in the chute also is provided.

A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with a plurality of protrusion elements being spaced along the rotational axes and protruding perpendicular from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.

An electronic dispenser for dispensing flexible sheet material. A control circuit receives a plurality of signals and controls dispensing of the sheet material. A tear bar is mounted within the housing for severance of sheet material by the user. A pivotally mounted pawl member is located proximate to the tear bar such that movement of sheet material into the tear bar for severance pivots the pawl member from a first position to a second position. Movement of the pawl member to the second position causes a signal to be sent to notify the control circuit that the sheet material has been removed. The dispensing mechanism is operative in a first mode to be responsive to a signal from a proximity sensor to dispense a sheet of material, and is operative in a second mode to dispense a next sheet in response to the signal generated by movement of the pawl member to the second position in response to dispensed sheet material being removed from the dispenser.

A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with a plurality of protrusion elements being spaced along the rotational axes and protruding perpendicular from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.

A sheet product dispenser for dispensing sheet product from a supply of sheet product reduces accumulation of the sheet product in the chute. The dispenser comprises a housing including a chute having a sheet product dispensing opening, a sheet product feed roller assembly disposed in the housing and configured to feed sheet product from the supply of sheet product into the chute, and a pusher disposed in the housing and configured to engage the sheet product fed from the sheet product feed roller assembly at a location downstream from the sheet product feed roller assembly and push the sheet product fed from the sheet product feed roller assembly toward the dispensing opening to reduce accumulation of the sheet product in the chute. A related method of reducing accumulation of the sheet product in the chute also is provided.