PERFORATION SENSING TOWEL DISPENSER

• US 20090065628A1
• Filed: 09/12/2007
• Published: 03/12/2009
• Est. Priority Date: 09/12/2007
• Status: Active Grant

• Current Assignee: GPCP IP Holdings LLC
• Original Assignee: Innovia Intellectual Properties, LLC
• Inventors: Troutman, William Bryant, Troutman, William Bryant II
• Granted Patent: US 7,887,005 B2
• Time in Patent Office: Days
• US Class Current: 242/564.100
• CPC Class Codes: A47K 10/36 with mechanical dispensing, roll switching or cutting devices
• CPC Class Codes: A47K 10/3612 with drive and pinch rollers
• CPC Class Codes: A47K 2010/3668 Detection of the presence of a user
• CPC Class Codes: A47K 2010/3681 characterised by the way a new paper roll is loaded in the dispenser

Abstract

There is provided a towel dispenser that includes a housing for containing toweling. The toweling includes a first towel and a second towel that are connected together and separable at a perforation formed between the first and second towel. The housing is configured to define a path P for the toweling. A motor and a perforation sensor are provided for dispensing the toweling and are electrically connected together. The perforation sensor is configured to generate a signal indicative of the presence of the perforation and the motor is configured to deactivate in response to the signal.

Claims

1. A towel dispenser, comprising:

(a) a housing for receiving toweling, wherein the toweling includes a first towel and a second towel that are connected together and separable at a perforation formed between the first and second towel, the housing being configured to define a path P for the toweling;

(b) a motor;

(c) a perforation sensor for sensing the perforation and electrically connected to the motor;

(d) wherein the perforation sensor is configured to generate a signal indicative of the presence of the perforation and the motor is configured to deactivate in response to the signal.

2. A towel dispenser according to claim 1, wherein the motor and a controller are positioned within the housing, the controller being electrically connected to the motor and the sensor and configured to activate and deactivate the motor after the perforation sensor generates the signal indicative of the perforation.

3. A hands-free towel dispenser according to claim 2, wherein the controller is configured to deactivate the motor a predetermined period of time after receiving the signal.

4. A hands-free towel dispenser according to claim 3, wherein the predetermined period of time is sufficient for the perforation to exit the housing.

5. A hands-free towel dispenser according to claim 3, wherein the predetermined period of time is sufficient for the perforation to be aligned with the separation device when the motor is deactivated.

6. A hands-free towel dispenser according to claim 1, further comprising a separation device.

7. A hands-free towel dispenser according to claim 6, wherein the separation device is an edge positioned near the path P.

8. A towel dispenser according to claim 1, further comprising a drive roller and a sensor roller, each having outer surfaces that define a portion of path P.

9. A towel dispenser according to claim 1, wherein the perforation is expanded when the perforation is in proximity to the sensor.

10. A towel dispenser according to claim 1, wherein the drive roller is configured to operate such that it has a first surface speed and the sensor roller is configured to operate such that it has a second surface speed.

11. A towel dispenser according to claim 10, wherein the first surface speed of the drive roller is greater than the second surface speed of the sensor roller such that the toweling is in tension between the drive roller and the sensor roller.

12. A towel dispenser according to claim 11, wherein the sensor roller is generally cylindrical and defines a first diameter at each of a first end and a second end and a second diameter between the first end and the second end, wherein the second diameter is greater than the first diameter.

13. A towel dispenser according to claim 12, wherein the second diameter is defined by a ridge formed between the first and second end of the sensor roller.

14. A towel dispenser according to claim 1, further comprising a guide system that defines path P and includes a first set of guiding members positioned on a first side of the toweling and a second set of guiding members positioned on a second side of the toweling.

15. A towel dispenser according to claim 14, wherein the housing includes a main body and a loading door pivotally attached to the main body and movable between a closed first position and an open second position, the second set of guiding members being attached to the loading door.

16. A method of dispensing towels from a dispenser, comprising the steps of:

a) providing a housing for containing toweling, wherein the toweling includes a first towel and a second towel that are connected together and separable at perforation formed between the first and second towel, the housing being configured to define a path P for the toweling;

a motor positioned with the housing for dispensing the toweling;

a controller positioned within the housing;

a sensor for sensing the perforation;

wherein the sensor is configured to generate a signal indicative of the presence of the perforation and the controller is configured to receive the signal and to deactivate the motor accordingly;

b) activating the motor to propel the toweling along path P;

c) deactivating the motor after the sensor generates a signal indicating the presence of the perforation.

17. A method of dispensing towels according to claim 16, wherein a controller is provided that is electrically connected to the motor and to the sensor, and the controller is configured to deactivate the motor a predetermined period of time after the signal is generated by the sensor.

18. A method of dispensing towels according to claim 16, further comprising the step of:

opening the perforation when the perforation is near the sensor.

19. A method of dispensing towels according to claim 18, wherein the step of opening includes the steps of:

a) providing a drive roller configured to be driven by the motor and a sensor roller configured to be driven by the motor, wherein the toweling contacts drive roller in path P after it contacts the sensor roller in path P;

b) operating the drive roller and the sensor roller such that the drive roller has a faster surface speed than the sensor roller such that tension is applied to the toweling between the drive roller and the sensor roller.

20. A method of dispensing towels according to claim 16, further comprising the step of:

operating the motor until the perforation has traveled along path P past the drive roller.

21. A method of loading a towel dispenser, comprising the steps of:

a) providing a housing for receiving toweling, wherein the toweling includes a first towel and a second towel that are connected together and separable along a perforation formed between the first and second towel;

a movable loading door having an open first position wherein toweling can be loaded into the housing and a closed second position;

a guide system configured to define a path P for the toweling, wherein the guide system includes a first set of guiding members attached to the housing and a second set of guiding members defining path P attached to the loading door such that the guide system defines path P when the loading door is in the first position;

b) moving the loading door to the open second position;

c) placing toweling within the housing;

d) extending a length of toweling from the housing over the loading door; and

e) moving the loading door to the closed position such that toweling extends along path P.

22. A method of dispensing towels according to claim 21, further comprising the steps of:

providing a motor and a controller positioned within the housing for dispensing the toweling;

a sensor for sensing the perforation;

wherein the sensor is configured to generate a signal indicative of the presence of the perforation and the controller is configured to receive the signal and to deactivate the motor.