Method of dispensing sheet material

• US 6,826,985 B2
• Filed: 12/15/2000
• Issued: 12/07/2004
• Est. Priority Date: 12/15/2000
• Status: Expired due to Term

• Current Assignee: GPCP IP Holdings LLC
• Original Assignee: Georgia-Pacific Corporation
• Inventors: Broehl, Joshua M.
• Primary Examiner(s): ASHLEY, BOYER DOLINGER
• Application Number:
  US09/736,419
• Publication Number:
  US 20020073821A1
• Time in Patent Office: 1,453 Days
• Field of Search: 242/560, 242/564.4, 242/560.1, 242/564.2, 492/22, 492/45, 225/34, 225/47, 225/77, 225/1, 225/16, 225/106, 271/9.01, 271/9.02, 271/9.03, 271/9.1, 834/361.5, 833/38, 836/50, 839/49, 83/1, 833/37, 425/45, 226/11, 312/34.22, 312/34.19
• US Class Current: 83/13
• CPC Class Codes: A47K 10/3612 with drive and pinch rollers
• CPC Class Codes: A47K 10/3687 with one or more reserve rolls
• CPC Class Codes: A47K 2010/3681 characterised by the way a new paper roll is loaded in the dispenser
• CPC Class Codes: B65H 35/08 from or with revolving, e.g. cylinder, cutters or perforators
• CPC Class Codes: Y10S 83/949 Continuous or wound supply
• CPC Class Codes: Y10T 225/10 Methods
• CPC Class Codes: Y10T 225/211 Manually operated feed-out mechanism
• CPC Class Codes: Y10T 225/232 Plural supply sources
• CPC Class Codes: Y10T 225/282 With fixed blade and support for wound package
• CPC Class Codes: Y10T 225/393 Web restrainer
• CPC Class Codes: Y10T 83/04 Processes
• CPC Class Codes: Y10T 83/4812 Compound movement of tool during tool cycle
• CPC Class Codes: Y10T 83/4815 Axial reciprocation of tool
• CPC Class Codes: Y10T 83/6636 Pinch rollers
• CPC Class Codes: Y10T 83/902 Plural supply sources

Abstract

A dispenser having a transfer mechanism for transferring between a first source and a second source of sheet material, and a method for transferring between the first source and the second source. Dispensing is transferred from a first source to a second source upon an absence of sheet material from the first source. The transfer mechanism includes a transfer roller with a slot to receive a free end of sheet material from the second source. The transfer roller also includes a plurality of raised portions, the raised portions are free to rotate through a dispensing roller when there is an absence of sheet material from the first source. This rotation introduces the free end of sheet material from the second source to the dispensing roller, and allows dispensing from the second source. Afterwards, the transfer roller is set to receive sheet material from a new source of sheet material.

Claims

1. A method of dispensing sheet material, comprising:

providing a dispenser containing first and second sources of sheet material, the dispenser including a first rotatable roller having at least one recessed portion and a second rotatable roller having at least one raised portion, the second roller having a retainer, the retainer including a slot passing completely through the second rollers;

dispensing sheet material from the first source by passing the sheet material between the first and second rollers;

retaining, in the retainer on the second roller, an end portion of sheet material from the second source, wherein the retaining includes passing the end portion of the sheet material from the second source through the slot;

limiting rotation of the second roller by contacting the raised portion of the second roller against the sheet material between the first and second rollers;

placing the second roller in contact with the first roller when sheet material from the first source is no longer between the first and second rollers; and

rotating the second roller to thereby feed sheet material from the second source onto the first roller to permit dispensing of sheet material from the second source.

2. A method of dispensing sheet material, comprising:

providing a dispenser containing first and second sources of sheet material, the dispenser including a first rotatable roller having at least one recessed portion and a second rotatable roller having at least one raised portion, the second roller having a retainer;

dispensing sheet material from the first source by passing the sheet material between the first and second rollers;

retaining, in the retainer on the second roller, an end portion of sheet material from the second source;

limiting rotation of the second roller by contacting the raised portion of the second roller against the sheet material between the first and second rollers;

placing the second roller in contact with the first roller when sheet material from the first source is no longer between the first and second rollers; and

rotating the second roller to thereby feed sheet material from the second source onto the first roller to permit dispensing of sheet material from the second source,

wherein rotating the second roller includes moving the at least one raised portion into the at least one recessed portion.

3. The method of claim 2, wherein the dispenser includes a third rotatable roller forming a nip with said first roller, and wherein the method further includes passing sheet material through the nip.

4. The method of claim 2, wherein limiting rotation of the second roller includes limiting movement of the at least one raised portion into the at least one recessed portion when there is sheet material between the first and second rollers.