Tape strip pads and dispenser and method of dispensing individual tape strips

• US 6,514,585 B1
• Filed: 11/13/1998
• Issued: 02/04/2003
• Est. Priority Date: 11/13/1998
• Status: Expired due to Term

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Pearson, Scott D., Crawford, Dennis L.
• Primary Examiner(s): Ahmad, Nasser
• Application Number:
  US09/191,649
• Time in Patent Office: 1,544 Days
• Field of Search: 206/449, 206/484, 221/26, 221/33, 221/45, 221/46, 221/50, 221/56, 221/57, 221/59, 221/61, 221/63, 221/197, 428/40.1, 428/42.1, 428/194, 428/201, 428/202, 428/195, 428/212, 428/220, 428/354, 281/2, 281/5
• US Class Current: 428/40.1
• CPC Class Codes: C09J 2301/204 the adhesive coating being discontinuous
• CPC Class Codes: C09J 2433/00 Presence of (meth)acrylic polymer
• CPC Class Codes: C09J 7/20 characterised by their carriers
• CPC Class Codes: G09F 3/10 by an adhesive layer
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/1476 Release layer
• CPC Class Codes: Y10T 428/1481 Dissimilar adhesives
• CPC Class Codes: Y10T 428/1486 Ornamental, decorative, pattern, or indicia
• CPC Class Codes: Y10T 428/24793 Comprising discontinuous or differential impregnation or bond
• CPC Class Codes: Y10T 428/24851 Intermediate layer is discontinuous or differential
• CPC Class Codes: Y10T 428/2486 with outer strippable or release layer
• CPC Class Codes: Y10T 428/24942 including components having same physical characteristic in differing degree
• CPC Class Codes: Y10T 428/2848 Three or more layers

Abstract

A W-stacked pads of tape strips dispensable at a low peel angle, comprising a plurality of superimposed tape strips longitudinally reversed so as to align the first end of each tape strip with the second end of an immediately overlaying and an immediately underlying tape strip. The individual tape strips having first and second longitudinal end portions with differential release characteristics, with the second end portion of each tape strip adhered to the first end portion of an adjacent tape strip at an adhesion level having an adhesive strength sufficient to allow release of the second end portion of an intermediate tape strip relative to the first end portion of an immediately underlying tape strip when an immediately overlying tape strip is dispensed from the pad at a low peel angle, while preventing any appreciable longitudinal movement of the second end portion of an intermediate tape strip relative to the first end portion of an immediately underlying tape strip when an immediately overlying tape strip is dispensed from the pad at a high peel angle.

Claims

1. An article of commerce comprising:

(a) a dispenser including;

(i) a housing defining a retention chamber configured and arranged to hold a W-stacked pad of adhesive tape strips, and having a top with an opening configured and arranged for accepting passage of an adhesively bonded combination of a first longitudinal end portion of an overlaying adhesive tape strip and a second longitudinal end portion of an immediately adjacent intermediate tape strip, as the overlaying adhesive tape strip is dispensed through the opening, from a W-stacked pad of adhesive tape strips within the retention chamber; and

(ii) a means for engaging the overlaying adhesive tape strip as the overlaying adhesive tape strip is dispensed through the opening so as to invariably provide a low peel angle between the overlaying adhesive tape strip and the immediately adjacent intermediate adhesive tape strip at the point of release of the second end portion of the intermediate adhesive tape strip from an adjacent underlying adhesive tape strip; and

(b) a W-stacked pad of adhesive tape strips within the retention chamber.

3. The article of commerce of claim 1 further comprising means for accessing the retention chamber to replace a depleted W-stacked pad of adhesive tape strips with a new W-stacked pad of adhesive tape strips.

6. The article of commerce of claim 1 wherein the pad defines a top and the dispenser further comprises means for transversely repositioning the W-stacked pad of adhesive tape strips held within the retention chamber relative to the engagement means as individual adhesive tape strips are dispensed from the pad, so as to maintain a substantially constant distance between the top of the pad and the engagement means throughout dispensing of the entire supply of adhesive tape strips in the pad.

7. The article of commerce of claim 1 wherein the pad defines a top and the dispenser further comprises means for transversely repositioning the engagement means relative to the W-stacked pad of adhesive tape strips held within the retention chamber as individual adhesive tape strips are dispensed from the pad, so as to maintain a substantially constant distance between the top of the pad and the engagement means throughout dispensing of the entire supply of adhesive tape strips in the pad.

9. The article of commerce of claim 1 wherein the retention chamber has a longitudinal length of between about 3 to 10 cm, a lateral width of between about 1 to 4 cm, and a depth of between about 0.2 to 3 cm.

10. The article of commerce of claim 1 wherein the W-stacked pad of adhesive tape strips contains between about 20 to 100 adhesive tape strips.

11. The article of commerce of claim 1 wherein the opening has a longitudinal length of between about 0.1 and 0.5 cm.

13. The article of commerce of claim 1 wherein the engagement means is positioned within the retention chamber and engages only the first longitudinal end portion of the overlaying adhesive tape strip as the overlaying adhesive tape strip is dispensed.

18. The article of commerce of claim 1 wherein the opening is configured and arranged so as to permit dispensing of the overlaying adhesive tape strip at a peel angle of greater than or less than 45°

and the engagement means is configured and arranged to engage the overlying adhesive tape strip only when the overlying adhesive tape strip is dispensed at a peel angle of greater than 45°

.

2. An article of commerce comprising:

(a) a dispenser including;

(i) a housing defining a retention chamber configured and arranged to hold a W-stacked pad of adhesive tape strips and having a top with an opening configured and arranged for accepting simultaneous passage of a first longitudinal end portion of an overlaying adhesive tape strip and a second longitudinal end portion of an intermediate tape strip adhered to the first longitudinal end of the overlaying adhesive tape strip from a W-stacked pad of adhesive tape strips held within the retention chamber; and

(ii) a means for engaging the overlaying adhesive tape strip as the overlaying adhesive tape strip is dispensed through the opening so as to invariably limit the peel angle between the overlaying adhesive tape strip and the immediately adjacent intermediate adhesive tape strip to an angle of less than 45°

with a longitudinal length of at least 0.2 cm of the first longitudinal end portion of the overlaying adhesive tape strip still adhered to the second end portion of the intermediate adhesive tape strip; and

(b) a W-stacked pad of adhesive tape strips within the retention chamber.

4. The article of commerce of claim 2 further comprising means for securing the W-stacked pad of adhesive tape strips within the retention chamber so as to prevent longitudinal movement of the pad in the housing as individual adhesive tape strips are dispensed from the pad through the opening.

5. The article of commerce of claim 4 wherein the housing has a bottom surface and the securing means comprises double-faced adhesive tape effective for adhesively attaching the pad to the bottom surface of the housing.

8. The article of commerce of claim 2 further comprising means for anchoring the dispenser to a substrate.

12. The article of commerce of claim 2 wherein the retention chamber has a longitudinal length and the opening has a minimum longitudinal length of 2 cm and a maximum longitudinal length of 2 cm less than the longitudinal length of the retention chamber.

14. The article of commerce of claim 2 wherein the engagement means is attached to the housing proximate the opening through the top of the housing.

15. The article of commerce of claim 2 wherein the engagement means is effective for limiting the peel angle between the overlaying adhesive tape strip and the intermediate adhesive tape strip to an angle of less than 20°

.

16. The article of commerce of claim 2 wherein the engagement means is effective for limiting the peel angle to an angle of less than 45°

with a longitudinal length of at least 0.5 cm of the first longitudinal end portion of the overlaying adhesive tape strip still adhered to the second end portion of the intermediate adhesive tape strip.

17. The article of commerce of claim 2 wherein the engagement means is effective for limiting the peel angle to an angle of less than 20°

with a longitudinal length of at least 0.5 cm of the first longitudinal end portion of the overlaying adhesive tape strip still adhered to the second end portion of the intermediate adhesive tape strip.

19. The article of commerce of claim 15 wherein the opening is configured and arranged so as to permit dispensing of the overlying adhesive tape strip only at a peel angle of greater than 20°

until the overlaying adhesive tape strip is engaged by the engagement means.

20. A method of dispensing an overlying tape strip from a W-stacked pad of adhesive tape strips at a restricted peel angle, wherein the pad has sequential tape strips longitudinally reversed so as to align a first longitudinal end of each tape strip with a second longitudinal end of an immediately overlaying and an immediately underlying tape strip and the pad includes at least (i) an overlying tape strip having a first longitudinal end and a second longitudinal end, (ii) an intermediate tape strip immediately underneath the overlying tape strip and having a first longitudinal end and a second longitudinal end, and (iii) an underlying tapes strip immediately underneath the intermediate tape strip, sequentially comprising:

a. pulling the second longitudinal end of the overlying tape strip away from the pad so as to effect peeling of the overlying tape strip from the intermediate tape strip in a progressive fashion from the second longitudinal end of the overlying tape strip towards the first longitudinal end of the overlying tape strip;

b. contacting the overlying tape strip so as to restrict a peel angle between the overlying tape strip and the intermediate tape strip to an angle of less than 45°

prior to complete separation of the overlying tape strip from the intermediate tape strip from the underlying tape strip; and

c. continuing to pull the overlying tape strip away from the pad to sequentially effect (i) release of the second longitudinal end section of the intermediate tape strip from the underlying tape strip, and (ii) complete separation of the overlying tape strip from the intermediate tape strip.

21. The dispensing method of claim 20 further comprising supporting the second longitudinal end section of the intermediate tape strip released from the underlying tape strip above the pad so as to facilitate subsequent dispensing of the intermediate tape strip.

22. The dispensing method of claim 20 wherein the overlying tape strip is contacted proximate the first longitudinal end of the overlying tape strip for purposes of restricting the peel angle between the overlying tape strip and the intermediate tape strip to less than 45°

.

23. The dispensing method of claim 20 wherein the peel angle between the overlying tape strip and the intermediate tape strip is restricted to an angle of less than 35°

.

24. The dispensing method of claim 20 wherein the peel angle between the overlying tape strip and the intermediate tape strip is restricted to an angle of less than 30°

.

25. The dispensing method of claim 20 wherein the peel angle between the overlying tape strip and the intermediate tape strip is restricted to an angle of less than 20°

.

26. The dispensing method of claim 20 wherein the peel angle is restricted to an angle of less than 45°

with a longitudinal length of between about {fraction (1/16)} to about ½

inch of the first longitudinal end of the overlying tape strip adhered to the second longitudinal end of the intermediate tape strip.

27. The dispensing method of claim 20 wherein the peel angle is restricted to an angle of less than 45°

with a longitudinal length of between about {fraction (1/16)} to about ⅛

inch of the first longitudinal end of the overlying tape strip adhered to the second longitudinal end of the intermediate tape strip.

28. The dispensing method of claim 23 wherein the peel angle is restricted to an angle of less than 35°

with a longitudinal length of between about {fraction (1/16)} to about ½

inch of the first longitudinal end of the overlying tape strip adhered to the second longitudinal end of the intermediate tape strip.

29. The dispensing method of claim 24 wherein the peel angle is restricted to an angle of less than 30°

with a longitudinal length of between about {fraction (1/16)} to about ½

inch of the first longitudinal end of the overlying tape strip adhered to the second longitudinal end of the intermediate tape strip.

30. The dispensing method of claim 20 wherein (i) the tape strips have an adhesive layer, (ii) the adhesive layer of each tape strip adheres the second end portion of each tape strip to the first end portion of an adjacent tape strip at a second adhesion level having an adhesive strength sufficient to prevent any appreciable longitudinal movement of the second end portion of an intermediate tape strip relative to the first end portion of an immediately underlying tape strip when an immediately overlying tape strip is dispensed from the pad at a high peel angle;

and (iii) the adhesive layer of each tape strip adheres the first end portion of each tape strip to the second end portion of an adjacent tape strip at a first adhesion level, with (A) the first adhesion level having an adhesive strength greater than about 1½

times the adhesive strength of the second adhesion level, and (B) the first adhesion level having an adhesive strength effective for affording a complete release of the overlying tape strip from the intermediate tape strip after the second end portion of the intermediate tape strip is released from the first end portion of the immediately underlying tape strip and before the intermediate tape strip is completely peeled from the second end portion of the immediately underlying tape strip.