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US4849851A Expired / Lapsed US ⏱️ 0.0 years remaining

Static electric discharge apparatus with active electrical circuit

Assignee: AT&T Inc
•
Filing: 1988-10-31
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Granted: 1989-07-18
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Expires: 2008-10-31
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Abstract

Abstract Apparatus for discharging static electricity from the human body by ionizing air and utilizing the flow of ions from the apparatus into the surrounding environment to discharge the body. The apparatus utilizes two power supplies to raise two embedded electrodes positioned in a horizontal plane different voltage potentials with respect to the body. The air is ionized by utilizing discharge electrodes of the opposite polarity positioned over each of the embedded electrodes which results in air ions being formed in a ion distribution above each embedded electrode. The embedded electrodes are positioned a predetermined distance from each other in the embedded plane. Within the region between the embedded electrodes, the ions recombine to form air molecules. The ions in the distribution layers above each embedded electrode drift toward this region under attraction from each other. As the ions move, ions of the same polarity as the body as repelled into free air by virtue of the presence of the static charge on the body. In free air, they eventually drift to a grounding point within the environment. This expulsion of the ions of the same polarity as the body discharges the static electricity from the body.

Inventors

  • 👤 Richard J. Cubbison, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 13:49
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04; A; A61; A61N; A61N1/00; A61N1/14

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 282 words
Apparatus for the static electric discharge of a body and which is worn on the body, comprising; a pair of embedded electrodes in a common horizontal plane; conductive body contact means for making an electrical contact with said body; a first voltage means connecting the negative terminal of said first voltage means to a first one of said embedded electrodes and the positive terminal of said first voltage means to said conductive body contact means; a second voltage means connecting a positive terminal of said second voltage means to a second one of said embedded electrodes and a negative terminal of said voltage means to said conductive body contact means; a first set of discharge electrodes connected to said first one of said embedded electrodes for generating negative air ions in the vicinity of said second one of said embedded electrodes thereby creating a distribution of negative ions in the vicinity of said second one of said embedded electrodes; a second set of discharge electrodes connected to said second one of said embedded electrodes for generating positive ions in the vicinity of said first one of said embedded electrodes thereby creating a positive air ion distribution in the vicinity of said first one of said embedded electrodes; and a recombination region of a predetermined width between said first and second ones of said embedded electrodes whereby the ions from said negative and positive air ion distributions horizontally move under electrostatic attraction from each other to said recombination region releasing ions of the same polarity of said body into the air to flow away from the embedded electrodes into the surrounding air thereby resulting in the removal of static electricity from said body.
Claim 2
Dependent Claim 282 words
Apparatus for the static electric discharge of a body and which is worn on the body, comprising; a pair of embedded electrodes in a common horizontal plane; conductive body contact means for making an electrical contact with said body; a first voltage means connecting the negative terminal of said first voltage means to a first one of said embedded electrodes and the positive terminal of said first voltage means to said conductive body contact means; a second voltage means connecting a positive terminal of said second voltage means to a second one of said embedded electrodes and a negative terminal of said voltage means to said conductive body contact means; a first set of discharge electrodes connected to said first one of said embedded electrodes for generating negative air ions in the vicinity of said second one of said embedded electrodes thereby creating a distribution of negative ions in the vicinity of said second one of said embedded electrodes; a second set of discharge electrodes connected to said second one of said embedded electrodes for generating positive ions in the vicinity of said first one of said embedded electrodes thereby creating a positive air ion distribution in the vicinity of said first one of said embedded electrodes; and a recombination region of a predetermined width between said first and second ones of said embedded electrodes whereby the ions from said negative and positive air ion distributions horizontally move under electrostatic attraction from each other to said recombination region releasing ions of the same polarity of said body into the air to flow away from the embedded electrodes into the surrounding air thereby resulting in the removal of static electricity from said body.
Claim 3
Dependent Claim 22 words
The apparatus of claim 1 wherein said first and second voltage means are solar cell units for producing electricity from ambient light.
Claim 4
Dependent Claim 31 words
The apparatus of claim 2 further comprises a conductive wrist strap connected to said conductive body contact means thereby allowing the apparatus to be worn on the wrist of said body.

References Cited (Backward Citations)

US3875461A Cited
US4048667A Cited
US3993932A Cited
US4107755A Cited
US4459633A Cited
US4570200A Cited
US4475141A Cited
US4586106A Cited
US4618909A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-07-17 1993-01-16 1993-07-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-17 1997-01-16 1997-07-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-17 2001-01-16 2001-07-18 $7700.00 Window Closed / Lapsed

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