Patent US3993049A successfully refreshed from Google Patents.
US3993049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes and materials therefor
Assignee: Individual
•
Filing: 1974-12-26
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Granted: 1976-11-23
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Expires: 1994-12-26
Abstract
Abstract An electrolyte for a bio-electric event measuring electrode combines a salt with adhesive. The adhesive serves as the vehicle for dispersing solvent to form the electrolyte in a solid or semi-solid mixture. The adhesive serves further as a structural element in holding the parts of a practical electrode together and in making the electrode adhere to a subject's skin. Such an electrolyte is combined with a mesh or otherwise foraminated patch of pliant material and a connector to form what can be an inexpensive, effective electrode having long shelf life, low irritation, and low electrical resistivity.
Inventors
- 👤 John A. R. Kater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:57
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/251; A61B5/257; A61B5/259; A61B5/279; A61B5/28; A61B5/282; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
70 words
An electrode for use in measuring bio-electric events comprising, in combination: a pliant patch of foraminated material; a quantity sufficient to measure bioelectric events of metal salt impregnating said patch of material; a connector having a surface formed of the metal of said metal salt in contact with said quantity of salt; and a quantity of adhesive covering one side of said patch adapted to be placed upon the skin.
Claim 2
Dependent Claim
70 words
An electrode for use in measuring bio-electric events comprising, in combination: a pliant patch of foraminated material; a quantity sufficient to measure bioelectric events of metal salt impregnating said patch of material; a connector having a surface formed of the metal of said metal salt in contact with said quantity of salt; and a quantity of adhesive covering one side of said patch adapted to be placed upon the skin.
Claim 3
Dependent Claim
23 words
The invention defined in claim 1 in which said quantity of salt is contained in a water soluble adhesive to form an adhesive-electrolyte.
Claim 4
Dependent Claim
26 words
The invention defined in claim 2 in which said pliant patch includes a screen comprising said given metal, the screen being in contact with said adhesive-electrolyte.
Claim 5
Dependent Claim
17 words
The invention defined in claim 2 in which said patch comprises a layer of non-woven viscous fabric.
Claim 6
Dependent Claim
19 words
The invention defined in claim 4 in which said metal is silver and said salt comprises a silver halide.
Claim 7
Dependent Claim
18 words
The invention defined in claim 4 in which said metal is zinc and said salt comprises zinc carbonate.
Claim 8
Dependent Claim
45 words
The invention defined in claim 4 in which said electrode further comprises a backing layer of water impervious, pliant covering material overlying covering and adhesively bonded to said pliant patch and to said connector at the side of said patch opposite said quantity of adhesive.
Claim 9
Dependent Claim
63 words
An electrode for use in measuring bio-electric events comprising in combination: a connector having a metal surface; a quanity of adhesive-electroylte material in physical contact with said metal surface; said adhesive-electrolyte material comprising the salt of the metal on the surface of said connector and in a quantity sufficient to measure bio-electric events; and said adhesive-electrolyte material further comprising powders of said metal.
Claim 10
Dependent Claim
63 words
An electrode for use in measuring bio-electric events comprising in combination: a connector having a metal surface; a quanity of adhesive-electroylte material in physical contact with said metal surface; said adhesive-electrolyte material comprising the salt of the metal on the surface of said connector and in a quantity sufficient to measure bio-electric events; and said adhesive-electrolyte material further comprising powders of said metal.
Claim 11
Dependent Claim
25 words
The invention defined in claim 8 which further comprises a first pliant patch formed of a foraminated material impregnated with said quantity of adhesive-electrolyte material.
Claim 12
Dependent Claim
32 words
The invention defined in claim 9 which further comprises a protective patch formed of pliant, water impermeable material, said patch being protective adhesively bonded to one side of said first pliant patch.
Claim 13
Dependent Claim
19 words
The invention defined in claim 10 in which a surface of said first pliant patch comprises said given metal.
Claim 14
Dependent Claim
31 words
The invention defined in claim 11 in which said connector comprises a disc having one of its surfaces in engagement with the first pliant patch and said quantity of adhesive-electrolyte material.
Claim 15
Dependent Claim
21 words
The invention defined in claim 12 in which the other surface of said disc is adhesively bonded to said protective patch.
Claim 16
Dependent Claim
36 words
The invention defined in claim 13 in which surface areas of the side of said first pliant patch which faces away from said protective patch are covered with an adhesive which is substantially insoluble in water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-23 | 1980-05-24 | 1980-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-23 | 1984-05-24 | 1984-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-23 | 1988-05-24 | 1988-11-23 | $7700.00 | Window Closed / Lapsed |