US4227894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion generator or electrostatic environmental conditioner
Assignee: Individual
•
Filing: 1978-10-10
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Granted: 1980-10-14
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Expires: 1998-10-10
Abstract
Abstract An improved ion generator comprising a set of specially shaped negative electrodes, a positive accelerator in the form of a ring or flat plates, and a grounded screen. The parts are serially arranged in a tube or channel and connected to the output terminals of a high-voltage direct-current power source. Negative ions are produced for the permeation of the atmosphere in living quarters.
Inventors
- 👤 John D. Proynoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:15
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/10; F24F8/192; B; B03; B03C; B03C3/00; B03C3/34; B03C3/38; H; H01; H01T; H01T23/00; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
240 words
An apparatus for generating negative ions for propulsion into the atmosphere of a controlled environment comprising: an ion gun, said gun comprising an open ended hollow elongated tubular shell flared outwardly at its exhaust end, a negative electrode positioned to extend across at least a part of said shell at a given distance from the opposite end of said shell, said negative electrode comprising a plurality of spaced protrusion extending from a plate mounted transversely of the hollow interior of said shell longitudinally of and toward said flared end of said shell, said protrusions comprising conically shaped configurations having rounded apexes to reduce ozone generation mounted with their bases on said plate and their apex ends extending toward the flared end of said shell, a positive ring shaped anode arranged around at least a part of the periphery of said shell at a second greater distance from said opposite end of said shell, a metallic screen mounted across said flared end of said shell, a d-c source of electrical potential connected to said shell for charging said negative electrode and said positive anode sufficiently to generate negative ions at said negative electrode and to produce sufficient kinetic energy to expell the negative ions past said positive anode and out of said flared end of said shell, and an air filter mounted transversely of the hollow interior of said shell between said opposite end of said shell and said negative electrode.
Claim 2
Independent Claim
240 words
An apparatus for generating negative ions for propulsion into the atmosphere of a controlled environment comprising: an ion gun, said gun comprising an open ended hollow elongated tubular shell flared outwardly at its exhaust end, a negative electrode positioned to extend across at least a part of said shell at a given distance from the opposite end of said shell, said negative electrode comprising a plurality of spaced protrusion extending from a plate mounted transversely of the hollow interior of said shell longitudinally of and toward said flared end of said shell, said protrusions comprising conically shaped configurations having rounded apexes to reduce ozone generation mounted with their bases on said plate and their apex ends extending toward the flared end of said shell, a positive ring shaped anode arranged around at least a part of the periphery of said shell at a second greater distance from said opposite end of said shell, a metallic screen mounted across said flared end of said shell, a d-c source of electrical potential connected to said shell for charging said negative electrode and said positive anode sufficiently to generate negative ions at said negative electrode and to produce sufficient kinetic energy to expell the negative ions past said positive anode and out of said flared end of said shell, and an air filter mounted transversely of the hollow interior of said shell between said opposite end of said shell and said negative electrode.
Claim 3
Dependent Claim
14 words
The apparatus set forth in claim 1 wherein: said electrode comprises a rectangular configuration.
Claim 4
Dependent Claim
14 words
The apparatus set forth in claim 1 wherein: said electrode comprises a cylindrical configuration.
Claim 5
Dependent Claim
35 words
The apparatus set forth in claim 1 wherein: said negative electrode comprises a U-shaped member the legs of which are serrated to provide a plurality of protrusions extending toward said flared end of said shell.
Claim 6
Dependent Claim
18 words
The apparatus set forth in claim 1 wherein: at least some of said protrusions are of different lengths.
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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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |