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US4373718A Expired / Lapsed US ⏱️ 0.0 years remaining

Flexible cork handle-wrapping strip

Assignee: Individual
•
Filing: 1981-05-26
•
Granted: 1983-02-15
•
Expires: 2001-05-26
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Abstract

Abstract A flexible, elongated handle-wrapping strip for tennis racquets, bicycle handlebars, baseball bats, fishing poles, or any other desired use which comprises a first layer of a composite of cork granules, the cork granules being plasticized with a liquid organic polyol and bonded to each other in a flexible plastic binder material. A second layer of contact adhesive is provided on one side of the first layer, while a third, peel-sheet layer overlies the contact adhesive layer for peeling away, to expose the contact adhesive layer for use. The handle-wrapping strip may be helically wound with the parallel edges of adjacent coils being in contact with each other. The adhesive layer is in the form of a flexible plastic sheet coated on both sides with an adhesive. The first layer includes 40 parts by weight of the cork granules plasticized with 3 to 20 parts by weight of the liquid polyol. The wrapping strip may also include a plastic layer of 0.01 to 0.05 inch thickness between the layer of cork and the adhesive.

Inventors

  • 👤 Donald H. Schmidt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:55
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/007; A; A01; A01K; A01K87/00; A01K87/08; A63; A63B; A63B49/00; A63B49/02; A63B49/08; A63B60/00; A63B60/06; A63B60/08; A63B60/14; B; B62; B62K; B62K21/00; B62K21/26; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0052; D06N7/0055; A63B2209/00; A63B53/00; A63B53/14; A63B60/10; A63B60/18; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1424; Y10T428/25; Y10T428/253; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20876

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 103 words
An elongated, flexible handle-wrapping strip which comprises a first layer of a composite of cork granules, each 40 parts by weight of said cork granules being plasticized with 3 to 20 parts by weight of a liquid organic polyol and bonded together in a flexible plastic binder material; a second layer of adhesive on one side of the first layer, said adhesive layer comprising a flexible plastic sheet coated on both sides with said adhesive and bonded on one side to said first layer; and a third, peel-sheet layer overlying the adhesive layer for peeling away to expose the adhesive layer for use.
Claim 2
Dependent Claim 103 words
An elongated, flexible handle-wrapping strip which comprises a first layer of a composite of cork granules, each 40 parts by weight of said cork granules being plasticized with 3 to 20 parts by weight of a liquid organic polyol and bonded together in a flexible plastic binder material; a second layer of adhesive on one side of the first layer, said adhesive layer comprising a flexible plastic sheet coated on both sides with said adhesive and bonded on one side to said first layer; and a third, peel-sheet layer overlying the adhesive layer for peeling away to expose the adhesive layer for use.
Claim 3
Dependent Claim 57 words
The elonaged handle-wrapping strip of claim 1 having parallel edges, in which at least one end defines an angled edge and a second edge, said second edge defining an extension of one of said parallel edges, said angled edge and second edge converging together at said one end to form a narrowed end adjacent said second edge.
Claim 4
Dependent Claim 26 words
The elongated handle-wrapping strip of claim 2, wound on a handle in helical manner with the parallel edges of adjacent coils in contact with each other.
Claim 5
Dependent Claim 63 words
The elongated, handle-wrapping strip of claim 1 in which said first layer comprises, per 40 parts by weight of cork granules, from 3 to 20 parts by weight of said liquid organic polyol plasticizer for the cork; from 2 to 50 parts by weight of an organic plasticizer for polyvinyl chloride; and from 6 to 62 parts by weight of polyvinyl chloride resin.
Claim 6
Dependent Claim 24 words
The elongated, handle-wrapping strip of claim 4 in which said first layer includes from 4 to 10 parts by weight of said polyol plasticizer.
Claim 7
Dependent Claim 14 words
The elongated, handle-wrapping strip of claim 5 in which said polyol plasticizer is glycerine.
Claim 8
Dependent Claim 40 words
The elongated, handle-wrapping strip of claim 4 in which said first layer includes from 10 to 30 parts by weight of polyvinyl chloride resin and from 10 to 25 parts by weight of an organic diester plasticizer for said resin.
Claim 9
Dependent Claim 14 words
The elongated, handle-wrapping strip of claim 7 in which said diester plasticizer is butylbenzylphthalate.
Claim 10
Dependent Claim 22 words
The elongated, handle-wrapping strip of claim 1 in which said cork granules predominantly are of a size between 1/8 and 1/18 inch.
Claim 11
Dependent Claim 19 words
The elongated handle-wrapping strip of claim 1 in which said first layer is from 0.02 to 0.1 inch thick.
Claim 12
Dependent Claim 39 words
The elongated, handle-wrapping strip of claim 1 in which said liquid organic polyol is incompatible in terms of miscibility with the flexible plastic binder material, to suppress migration of the polyol from the cork granules to the binder material.
Claim 13
Dependent Claim 193 words
An elongated, handle-wrapping strip which comprises a first layer of a composite of cork granules which are predominantly of a size between 1/8 and 1/18 inch, said first layer being from 0.02 to 0.1 inch thick, said cork granules being plasticized with a liquid organic polyol and bonded together in a flexible plastic binder material, said first layer comprising, per 40 parts by weight of cork granules, from 3 to 20 parts by weight of said liquid organic polyol plasticizer for the cork; from 2 to 50 parts by weight of an organic plasticizer for polyvinyl chloride; and from 6 to 62 parts by weight of polyvinyl chloride resin; a second layer of adhesive on one side of the first layer, and a third peel-sheet layer overlying the adhesive layer for peeling away to expose the adhesive layer for use, said strip having parallel edges, and at least one end thereof defining an angled edge and a second edge, said second edge defining an extension of one of the said parallel edges, the angled and the second edges converging together at said one end to form a narrowed end adjacent said second edge.
Claim 14
Dependent Claim 193 words
An elongated, handle-wrapping strip which comprises a first layer of a composite of cork granules which are predominantly of a size between 1/8 and 1/18 inch, said first layer being from 0.02 to 0.1 inch thick, said cork granules being plasticized with a liquid organic polyol and bonded together in a flexible plastic binder material, said first layer comprising, per 40 parts by weight of cork granules, from 3 to 20 parts by weight of said liquid organic polyol plasticizer for the cork; from 2 to 50 parts by weight of an organic plasticizer for polyvinyl chloride; and from 6 to 62 parts by weight of polyvinyl chloride resin; a second layer of adhesive on one side of the first layer, and a third peel-sheet layer overlying the adhesive layer for peeling away to expose the adhesive layer for use, said strip having parallel edges, and at least one end thereof defining an angled edge and a second edge, said second edge defining an extension of one of the said parallel edges, the angled and the second edges converging together at said one end to form a narrowed end adjacent said second edge.
Claim 15
Dependent Claim 39 words
The elongated, handle-wrapping strip of claim 12 in which said liquid organic polyol is incompatible in terms of miscibility with the flexible plastic binder material, to suppress migration of the polyol from the cork granules to the binder material.
Claim 16
Dependent Claim 18 words
The elongated, handle-wrapping strip of claim 13 in which said plasticizer for polyvinyl chloride is a phthalate diester.
Claim 17
Dependent Claim 32 words
The elongated, handle-wrapping strip of claim 12 in which a portion of said strip adjacent said narrowed end is feathered from its normal thickness to a thin end at said second edge.
Claim 18
Dependent Claim 34 words
The elongated, handle-wrapping strip of claim 12 in which said layer of adhesive comprises a flexible plastic sheet coated on both sides with said adhesive and bonded on one side to said first layer.
Claim 19
Dependent Claim 36 words
The elongated, handle-wrapping strip of claim 16 in which a plastic layer of 0.01 to 0.05 inch thickness is present between the first layer of the composite of cork granules and the second layer of adhesive.
Claim 20
Dependent Claim 13 words
The elongated, handle-wrapping strip of claim 16 in which said polyol is glycerine.
Claim 21
Dependent Claim 228 words
An elongated, handle-wrapping strip which comprises a first layer of a composite of cork granules which are predominantly of a size between 1/8 and 1/18 inch, said first layer being from 0.03 to 0.06 inch thick, said cork granules being plasticized with glycerine and bonded together in a flexible binder material, said first layer comprising, per 40 parts by weight of cork granules, from 4 to 10 parts by weight of said glycerine, from 10 to 30 parts by weight of polyvinyl chloride resin, and from 10 to 25 parts by weight of an organic plasticizer for polyvinyl chloride; an intermediate layer of adhesively-compatible plastic material having a thickness of 0.01 to 0.05 inch carried on one side of said first layer; a second layer of adhesive carried on said intermediate layer, said second layer comprising a flexible plastic sheet coated on both sides with said adhesive and bonded on one side to said first layer, and a third, peel-sheet layer overlying the contact adhesive layer for peeling away to expose the contact adhesive layer for use, said strip having parall edges and at least one end thereof defining an angled edge and a second edge, said second edge defining an extension of one of said parallel edges, the angled and the second edges converging at said one end to form a narrowed end adjacent said second edge.
Claim 22
Dependent Claim 228 words
An elongated, handle-wrapping strip which comprises a first layer of a composite of cork granules which are predominantly of a size between 1/8 and 1/18 inch, said first layer being from 0.03 to 0.06 inch thick, said cork granules being plasticized with glycerine and bonded together in a flexible binder material, said first layer comprising, per 40 parts by weight of cork granules, from 4 to 10 parts by weight of said glycerine, from 10 to 30 parts by weight of polyvinyl chloride resin, and from 10 to 25 parts by weight of an organic plasticizer for polyvinyl chloride; an intermediate layer of adhesively-compatible plastic material having a thickness of 0.01 to 0.05 inch carried on one side of said first layer; a second layer of adhesive carried on said intermediate layer, said second layer comprising a flexible plastic sheet coated on both sides with said adhesive and bonded on one side to said first layer, and a third, peel-sheet layer overlying the contact adhesive layer for peeling away to expose the contact adhesive layer for use, said strip having parall edges and at least one end thereof defining an angled edge and a second edge, said second edge defining an extension of one of said parallel edges, the angled and the second edges converging at said one end to form a narrowed end adjacent said second edge.
Claim 23
Dependent Claim 26 words
The elongated, handle-wrapping strip of claim 19 wound on a handle in helical manner with the parallel edges of adjacent coils in contact with each other.
Claim 24
Dependent Claim 17 words
The elongated, handle-wrapping strip of claim 20 in which said intermediate layer is a polyvinyl chloride plastic.

References Cited (Backward Citations)

US1441986A Cited
US2288686A Cited
US2339121A Cited
US2365508A Cited
US2583198A Cited
GB870021A Cited
US3078097A Cited
US3271031A Cited
US3406130A Cited
US3821135A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-02-14 1986-08-16 1987-02-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-02-14 1990-08-16 1991-02-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-02-14 1994-08-16 1995-02-15 $7700.00 Window Closed / Lapsed

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