US4205672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductivity sensing device for diapers
Assignee: Individual
•
Filing: 1977-11-28
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Granted: 1980-06-03
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Expires: 1997-11-28
Abstract
Abstract A conductivity sensing device for diapers comprises a pair of swingably connected jaw members spring biased to closed position. One of the jaws has an electric conducting member with jaws designed to pierce material of the diaper to contact an electrically conducting layer therein. One of the jaws is provided with an electrical conducting area designed to contact the skin of a baby. Means are provided for preventing direct electrical contact between the jaws and the conducting area and means are provided to detect an increase in conductivity between these members.
Inventors
- 👤 Karel Dvorak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:52
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/48; A61F13/00; A61F13/15; A61F13/42; A61F13/84; A61F2013/8476; A61F2013/8479
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
186 words
In combination: a diaper comprising an outer layer, a water permeable inner layer and, a conducting sub-layer between said layers, located adjacent an edge of the diaper, and extending into the part of the diaper which would extend between an infant's legs. a member having a pair of swingably connected jaws biased to closed position, said jaws being designed to be attached to said diaper such that one jaw is on one side and the other jaw is on the other side of the diaper, one of said jaws including a first electrically conducting member designed to pierce said inner layer when attached to said diaper and to contact said conducting sub-layer, said one of said jaws including a second electrical conducting member designed to contact the body of a baby when said one of said jaws is located on the inner side of said diaper, said one of said jaws further including means for electrically insulating said first conducting member from said second conducting member, and means for detecting and signalling an increase of conductivity between said first conducting member and said second conducting member.
Claim 2
Dependent Claim
186 words
In combination: a diaper comprising an outer layer, a water permeable inner layer and, a conducting sub-layer between said layers, located adjacent an edge of the diaper, and extending into the part of the diaper which would extend between an infant's legs. a member having a pair of swingably connected jaws biased to closed position, said jaws being designed to be attached to said diaper such that one jaw is on one side and the other jaw is on the other side of the diaper, one of said jaws including a first electrically conducting member designed to pierce said inner layer when attached to said diaper and to contact said conducting sub-layer, said one of said jaws including a second electrical conducting member designed to contact the body of a baby when said one of said jaws is located on the inner side of said diaper, said one of said jaws further including means for electrically insulating said first conducting member from said second conducting member, and means for detecting and signalling an increase of conductivity between said first conducting member and said second conducting member.
Claim 3
Dependent Claim
150 words
A conductivity sensing device for diapers comprising: a member having a pair of swingably connected jaws spring biased to closed position, said jaws being designed to be attached to a diaper, such that one jaw is on one side and the other jaw is on the other side of a diaper, one of said jaws including a first electrically conducting member designed to pierce, the inner layer of a diaper, when attached to said diaper, said one of said jaws including an a second electrical conducting member designed to contact the body of a baby when said one of said jaws is located on the inner side of a diaper, said one of said jaws further including means for electrically insulating said first conducting member from said second conducting member, and means for detecting and signalling an increase of conductivity between said first conducting member and said second conducting member.
Claim 4
Dependent Claim
150 words
A conductivity sensing device for diapers comprising: a member having a pair of swingably connected jaws spring biased to closed position, said jaws being designed to be attached to a diaper, such that one jaw is on one side and the other jaw is on the other side of a diaper, one of said jaws including a first electrically conducting member designed to pierce, the inner layer of a diaper, when attached to said diaper, said one of said jaws including an a second electrical conducting member designed to contact the body of a baby when said one of said jaws is located on the inner side of a diaper, said one of said jaws further including means for electrically insulating said first conducting member from said second conducting member, and means for detecting and signalling an increase of conductivity between said first conducting member and said second conducting member.
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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) | 1983-06-03 | 1983-12-03 | 1984-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-03 | 1987-12-03 | 1988-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-03 | 1991-12-03 | 1992-06-03 | $7700.00 | Window Closed / Lapsed |