Patent US3257993A successfully refreshed from Google Patents.
US3976916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic equipment
Assignee: CUMMING Corp A CA CORP
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Filing: 1975-01-15
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Granted: 1976-08-24
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Expires: 1995-01-15
Abstract
Abstract Apparatus for generating and dispersing ions comprises A. an electrically insulative carrier, B. integral means forming multiple relatively closely spaced metallic tips extending in generally the same direction, said means carried by said carrier and C. means electrically connected with said integral means for supplying high voltage to said tips.
Inventors
- 👤 Donald G. Saurenman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:56
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04; H01; H01T; H01T23/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
In apparatus for generating and dispersing ions, a. an electrical insulative carrier, b. a cluster of parallel needles having adjacent shanks and forming multiple relatively closely spaced metallic tips extending in the same direction, said needles carried by said carrier, and c. means electrically connected with said needles for supplying high voltage to said tips, said means including solder extending in the interstices formed by and between said shanks, and a metallic base supporting said solder and said shanks at the ends thereof opposite said tips.
Claim 2
Dependent Claim
86 words
In apparatus for generating and dispersing ions, a. an electrical insulative carrier, b. a cluster of parallel needles having adjacent shanks and forming multiple relatively closely spaced metallic tips extending in the same direction, said needles carried by said carrier, and c. means electrically connected with said needles for supplying high voltage to said tips, said means including solder extending in the interstices formed by and between said shanks, and a metallic base supporting said solder and said shanks at the ends thereof opposite said tips.
Claim 3
Dependent Claim
135 words
In apparatus for generating and dispersing ions, a. an electrically insulative carrier, b. integral means forming multiple relatively closely spaced metallic tips extending in generally the same direction, said means carried by said carrier and comprising a cluster of needle shanks which extend in adjacent parallel relation, and a rigid bond holding said shanks in said adjacent parallel relation, said bond comprising solder having capillary positioning in spaces formed between said shanks, and there being a metallic base supporting said solder and said shanks at the ends thereof opposite said tips, and c. means electrically connected with said integral means for supplying high voltage to said tips, d. said insulative carrier including a molded plastic insert defining an axis and carrying said base at said axis, and a molded plastic hollow body receiving said insert.
Claim 4
Dependent Claim
135 words
In apparatus for generating and dispersing ions, a. an electrically insulative carrier, b. integral means forming multiple relatively closely spaced metallic tips extending in generally the same direction, said means carried by said carrier and comprising a cluster of needle shanks which extend in adjacent parallel relation, and a rigid bond holding said shanks in said adjacent parallel relation, said bond comprising solder having capillary positioning in spaces formed between said shanks, and there being a metallic base supporting said solder and said shanks at the ends thereof opposite said tips, and c. means electrically connected with said integral means for supplying high voltage to said tips, d. said insulative carrier including a molded plastic insert defining an axis and carrying said base at said axis, and a molded plastic hollow body receiving said insert.
Claim 5
Dependent Claim
44 words
The apparatus of claim 2 including a wire received within said body and electrically connected with said metallic base, there being plastic sheathing on said wire, and there being means on said sheathing blocking pull-out displacement of the sheathing and wire from said body.
Claim 6
Dependent Claim
46 words
The apparatus of claim 1 wherein said carrier includes a cylindrical portion extending about and receiving said tips, said portion forming an outlet to pass ions dispersed by said tips, there being a molded plastic grid on said portion and extending in alignment with said outlet.
Claim 7
Dependent Claim
95 words
In apparatus for generating and dispersing ions, a. an electrically insulative carrier, b. integral means forming multiple relatively closely spaced metallic tips extending in generally the same direction, said means carried by said carrier and c. means electrically connected with said integral means for supplying high voltage to said tips, d. said carrier including a cylindrical portion extending about and receiving said tips, said portion forming an outlet to pass ions dispersed by said tips, there being a molded plastic sheet forming a receptacle receiving said cylindrical portion of the carrier to mount the carrier.
Claim 8
Dependent Claim
95 words
In apparatus for generating and dispersing ions, a. an electrically insulative carrier, b. integral means forming multiple relatively closely spaced metallic tips extending in generally the same direction, said means carried by said carrier and c. means electrically connected with said integral means for supplying high voltage to said tips, d. said carrier including a cylindrical portion extending about and receiving said tips, said portion forming an outlet to pass ions dispersed by said tips, there being a molded plastic sheet forming a receptacle receiving said cylindrical portion of the carrier to mount the carrier.
Claim 9
Dependent Claim
14 words
The apparatus of claim 5 including structure supporting said sheet near the periphery thereof.
Claim 10
Dependent Claim
34 words
The apparatus of claim 1 wherein said means to supply high voltage to the tips comprises power circuitry, a container for said circuitry, and foamed plastic substantially filling the container and covering said circuitry.
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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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |