US4645697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape for corrosion protection
Assignee: Dainichi Nippon Cables Ltd
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Filing: 1985-10-31
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Granted: 1987-02-24
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Expires: 2005-10-31
Abstract
Abstract A tape for corrosion protection, in which a pressure sensitive adhesive is coated on one face of a plastic sheet, and pieces of galvanic sacrificial anode metal foil for cathodic protection are lined consecutively on a part of its adhesive face across less than the entire width of the plastic sheet. An object of this invention is to prevent corrosion by means of an effect of cathodic protection.
Inventors
- 👤 Yutaka Torigoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:14
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; Y; Y10; Y10S; Y10S138/00; Y10S138/06; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/15; Y10T428/18; Y10T428/183; Y10T428/187; Y10T428/28; Y10T428/2804; Y10T428/2835; Y10T428/2848
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
56 words
A tape for corrosion protection, in which a pressure sensitive adhesive is coated on one face of a plastic sheet, and pieces of galvanic sacrificial anode metal foil for cathodic protection are lined consecutively on a part of its adhesive face, a width of said metal foil being less than a width of said plastic sheet.
Claim 2
Dependent Claim
56 words
A tape for corrosion protection, in which a pressure sensitive adhesive is coated on one face of a plastic sheet, and pieces of galvanic sacrificial anode metal foil for cathodic protection are lined consecutively on a part of its adhesive face, a width of said metal foil being less than a width of said plastic sheet.
Claim 3
Dependent Claim
20 words
A tape for corrosion protection as set forth in claim 1, in which said plastic sheet is transparent or semi-transparent.
Claim 4
Dependent Claim
22 words
A tape for corrosion protection as set forth in claim 1, in which said plastic sheet comprises synthetic resin having an elasticity.
Claim 5
Dependent Claim
24 words
A tape for corrosion protection as set forth in claim 1, in which said pieces of metal foil are separated independently of each other.
Claim 6
Dependent Claim
27 words
A tape for corrosion protection as set forth in claim 1, in which said pieces of metal foil prior to use are joined through easily breakable ditches.
Claim 7
Dependent Claim
26 words
A tape for corrosion protection as set forth in claim 5, in which said ditches are composed of grooves in a direction of metal foil thickness.
Claim 8
Dependent Claim
25 words
A tape for corrosion protection as set forth in claim 5, in which said ditches are formed in a direction of the metal foil width.
Claim 9
Dependent Claim
27 words
A tape for corrosion protection as set forth in claim 7, in which said ditches extend from both width ends of the metal foil toward its center.
Claim 10
Dependent Claim
28 words
A tape for corrosion protection as set forth in claim 7, in which said ditches are formed into a dashed-line shape in the direction of metal foil width.
Claim 11
Dependent Claim
28 words
A tape for corrosion protection as set forth in claim 1, in which said metal foil is formed into a rectangular shape four corners of which are rounded.
Claim 12
Dependent Claim
22 words
A tape for corrosion protection as set forth in claim 1, in which said metal foil is formed into an oval shape.
Claim 13
Dependent Claim
32 words
A tape for corrosion protection as set for forth in claim 1, in which the width of said metal foil is two thirds or less of the width of said plastic sheet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |