Easy-load household automatic paper towel dispenser

• US 7,887,005 B2
• Filed: 09/12/2007
• Issued: 02/15/2011
• 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
• Primary Examiner(s): RIVERA, WILLIAM ARAUZ
• Application Number:
  US11/854,193
• Publication Number:
  US 20090065628A1
• Time in Patent Office: 1,252 Days
• Field of Search: 242/563, 242/563.2, 242/564, 242/564.1, 242/564.3, 242/564.4, 242/565, 242/566, 242/418, 242/419, 242/419.5, 312/34.8, 225/93, 225/106, 226/181
• US Class Current: 242/563.2
• 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. An automatic towel dispenser, comprising:

(a) a housing for receiving toweling, the housing including,

(i) a main body,

(ii) a loading door pivotally attached to the main body such that the loading door is rotatable relative to the main body, the loading door being movable between an open position and a closed position, and being configured to allow toweling to be inserted into the housing when the loading door is in the open position, and

(iii) a guide system configured to define a path P for the toweling, the guide system including a first set of one or more guiding members attached to the main body and a second set of one or more guiding members attached to the loading door such that,

(A) the second set of guiding members guides the toweling along a portion of the path P when the loading door is in the closed position,

(B) the second set of guiding members does not guide the toweling along a portion of the path P when the loading door is in the open position, and

(C) each of the one or more guiding members of the second set includes an axis of rotation that is fixed relative to the loading door regardless of whether the loading door is in the closed position or the open position;

(b) a motor for driving dispensing of toweling from the housing; and

(c) a sensor electrically connected to the motor;

(d) wherein the sensor is configured to generate a signal and the motor is configured to deactivate dispensing of toweling from the housing as a function of the signal; and

(e) wherein the dispenser is configured such that a perforation of toweling received within the housing is expanded when the perforation is in proximity to the sensor.

2. An automatic towel dispenser, comprising:

(a) a housing for receiving toweling, the housing including,

(i) a main body,

(ii) a loading door pivotally attached to the main body such that the loading door is rotatable relative to the main body, the loading door being movable between an open position and a closed position, and being configured to allow toweling to be inserted into the housing when the loading door is in the open position, and

(iii) a guide system configured to define a path P for the toweling, the guide system including a first set of one or more guiding members attached to the main body and a second set of one or more guiding members attached to the loading door such that,

(A) the second set of guiding members guides the toweling along a portion of the path P when the loading door is in the closed position,

(B) the second set of guiding members does not guide the toweling along a portion of the path P when the loading door is in the open position, and

(C) each of the one or more guiding members of the second set includes an axis of rotation that is fixed relative to the loading door regardless of whether the loading door is in the closed position or the open position;

(b) a motor for driving dispensing of toweling from the housing; and

(c) a sensor electrically connected to the motor;

(d) wherein the sensor is configured to generate a signal and the motor is configured to deactivate dispensing of toweling from the housing as a function of the signal;

(e) wherein the first set of guiding members comprises a drive roller having an outer surface that defines a portion of path P, and wherein the second set of guiding members comprises a sensor roller having an outer surface that defines a portion of path P; and

(f) 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 that is different from the first surface speed.

3. An automatic towel dispenser according to claim 2, 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.

4. An automatic towel dispenser according to claim 3, 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.

5. An automatic towel dispenser according to claim 4, wherein the second diameter is defined by a ridge formed between the first and second end of the sensor roller.

6. A method of loading a towel dispenser having a housing for receiving toweling, wherein the housing includes,

(1) a main body

(2) a movable loading door secured to the main body such that the loading door is rotatable relative to the main body, the loading door being movable between an open position and a closed position, the loading door being configured to allow toweling to be inserted into the housing when the loading door is in the open position, and

(3) a guide system configured to define a path P along which the toweling is guided when dispensed, the guide system including a first set of one or more guiding members attached solely to the main body and a second set of one or more guiding members attached solely to the loading door such that,

(A) the second set of guiding members guides the toweling along a portion of path P when the loading door is in the closed position,

(B) the second set of guiding members does not guide the toweling along a portion of path P when the loading door is in the open position, and

(C) each of the at least one or more guiding members of the second set is capable of only rotational movement relative to the loading door about an axis of rotation that is located in a fixed position relative to the loading door, regardless of whether the loading door is in the closed position, the open position, or transitioning therebetween,

the method comprising the steps of,

(a) moving the loading door to the open position such that the second set of guiding members attached to the loading door does not guide toweling along a portion of path P;

(b) placing toweling within the housing;

(c) extending a length of toweling such that it extends across a top of each of the second set of guiding members attached to the loading door; and

(d) moving the loading door to the closed position such that,

(i) the first set of guiding members attached to the main body and the second set of guiding members attached to the loading door each guides the toweling along a portion of path P, and

(ii) the toweling is threaded along path P by the act of the loading door being moved to the closed position while the length of toweling extends across the top of each of the second set of guiding members attached to the loading door.

7. The method of claim 6, further comprising the step of mounting the towel dispenser to the underside of a household cabinet such that the loading door rotates away from the underside of the cabinet and extends generally downwardly when moved from the closed position to the open position for receiving placement of the toweling within the housing.

8. The method of claim 6, wherein the first set of one or more guiding members comprises a drive roller and the second set of one or more guiding members comprises a pinch roller, and wherein the method further comprises dispensing an extent of the toweling after the loading door is moved from the open position to the closed position, the toweling being trapped by the drive roller and the pinch roller.

9. A method of loading a towel dispenser, having a housing for receiving toweling, wherein the housing includes,

(1) a main body

(2) a movable loading door secured to the main body such that the loading door is rotatable relative to the main body, the loading door being movable between an open position and a closed position, the loading door being configured to allow toweling to be inserted into the housing when the loading door is in the open position, and

(3) a guide system configured to define a path P along which the toweling is guided when dispensed, the guide system including a first guiding member attached to the main body and a second guiding member attached to the loading door such that,

(A) the second guiding member guides the toweling along a portion of path P when the loading door is in the closed position, and

(B) the second guiding member does not guide the toweling along a portion of path P when the loading door is in the open position,

the method comprising the steps of,

(a) moving the loading door to the open position such that the second guiding member attached to the loading door does not guide toweling along a portion of path P;

(b) placing toweling within the housing;

(c) extending a length of toweling such that it extends across a top of the second guiding member attached to the loading door; and

(d) moving the loading door to the closed position such that,

(i) the first guiding member attached to the main body and the second guiding member attached to the loading door each guides the toweling along a portion of path P, and

(ii) the toweling is threaded along path P by the act of the loading door being moved to the closed position from the open position while the length of toweling extends across the top of the second guiding member attached to the loading door.