Claims
- 1. An elongate masking tape structure for use in masking flexible gaskets while mounted in place relative to a panel to be refinished, the gasket being of the type including a free leg portion that overlaps the panel, said masking tape structure being divided along a major surface thereof into a first longitudinal zone, a second longitudinal zone, and a third longitudinal zone provided on the opposite edge of the first longitudinal zone than the second longitudinal zone, and comprising:
- a backing layer;
- an adhesive layer covering at least a portion said backing layer within said first longitudinal zone wherein a non-adhesive portion of said backing layer comprises said third longitudinal zone; and
- stiffening means for making said second longitudinal zone stiffer in the transverse direction thereof than said first longitudinal zone in the transverse direction thereof, said stiffening means comprising a strip connected with said backing layer, wherein said first zone is flexible for wrapping about a gasket to which said masking tape is to be applied and said second zone is sufficiently stiff in the transverse direction thereof so that said strip remains generally linear in its transverse direction so as to create a lever action against a free leg gasket portion when the second zone is inserted under the free leg gasket portion and when a force is applied in the transverse direction of the masking tape from the first zone.
- 2. The masking tape structure of claim 1, wherein said strip of said stiffening means comprises a layer of material that is stiffer than said backing layer which covers at least a portion of said backing layer.
- 3. The masking tape structure of claim 2, wherein the material of the layer of said stiffening means has a Taber stiffness value of at least 20 g-cm in the transverse direction of said masking tape.
- 4. The masking tape structure of claim 3, wherein said backing layer comprises a polymeric material.
- 5. The masking tape structure of claim 4, wherein said polymeric material of said backing layer is stretchable by a significant amount.
- 6. The masking tape structure of claim 4, wherein said material of the layer of said stiffening means comprises a different polymeric material than that of said backing layer.
- 7. The masking tape structure of claim 1, wherein said strip comprises a portion of said backing layer folded upon said backing layer.
- 8. The masking tape structure of claim 1, further including a protective liner covering said first longitudinal zone and adhered to said adhesive layer.
- 9. The masking tape structure of claim 1, wherein said adhesive layer covers said first longitudinal zone.
- 10. The masking tape structure of claim 1, wherein a second stiffening strip of a different caliper than said strip of said second longitudinal zone comprises said third longitudinal zone.
Parent Case Info
This is a continuation of U.S. application Ser. No. 08/314,536 filed on Sep. 28, 1994(now U.S. Pat. No. 5,421,936), which is a continuation of U.S. application Ser. No. 08/207,305 filed on Mar. 7, 1994(now abandoned), which is a division of U.S. application Ser. No. 08/024,607 filed on Mar. 1, 1993, now issued as U.S. Pat. No. 5,354,614.
US Referenced Citations (18)
Foreign Referenced Citations (12)
Number |
Date |
Country |
1042283 |
Nov 1978 |
CAX |
0 365 510 |
Apr 1990 |
EPX |
0 518 403 |
Dec 1992 |
EPX |
2116964 |
Jul 1972 |
FRX |
86 07 368 |
Apr 1986 |
DEX |
91 06 206.3 |
Aug 1991 |
DEX |
93 02 930.6 |
Jun 1993 |
DEX |
47-18930 |
Sep 1972 |
JPX |
63-183978 |
Jul 1988 |
JPX |
79-5866 |
Nov 1979 |
ZAX |
1 555 808 |
Nov 1979 |
GBX |
WO9220461 |
Nov 1992 |
WOX |
Non-Patent Literature Citations (3)
Entry |
Product Packaging--Wielander+Schill--"Einziehfix". |
3M Brochure--60-4400-0845-0(5612)BE--"Scotch Brand Feather Edge Masking Tape". |
Tru-Mask Brochure--"Follex System". |
Divisions (1)
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Number |
Date |
Country |
Parent |
24607 |
Mar 1993 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
314536 |
Sep 1994 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
207305 |
Mar 1994 |
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