US3634025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water sterilizer
Assignee: Individual
•
Filing: 1969-11-20
•
Granted: 1972-01-11
•
Expires: 1989-11-20
Abstract
Abstract The water sterilizer is proposed for large-volume, continuous flow operation with spaced banks of transparent irradiation media flow tubes of nonstick material fixed within a cabinet. The tubes are nested in interdigitated loops in each bank. Between the banks of fixed tubes are multiple germicidal lamps and reflectors mounted on frames slidable between the banks of tubes and slidable out of the cabinet for inspection and replacement of the lamps.
Inventors
- 👤 Alfred Landry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:42
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/10; C; C02; C02F; C02F1/00; C02F1/30; C02F1/32; C02F1/325; C02F2201/00; C02F2201/32; C02F2201/322; C02F2201/3227; C02F2201/3228
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
29 words
A sterilizer unit as defined in claim 1 wherein said frames include reflectors mounted thereon which are disposed between the generators to enhance the efficiency of the ultraviolet rays.
Claim 2
Dependent Claim
58 words
A sterilizer unit as defined in claim 1 wherein said irradiation tubes have a diameter sufficiently small to allow penetration of the ultraviolet rays through the fluid media and are composed of fluorinated ethylene propylene whereby film buildup is prohibited on the inside of the tubes to allow transmission of ultraviolet rays over an extended period of time.
Claim 3
Dependent Claim
55 words
A sterilizer unit as defined in claim 1 wherein each said bank has a plurality of tubes connected to and extending between said inlet and outlet means, said irradiation tubes being serpentine within the plane of each correspondIng frame and including loops which are interdigitated for greater compaction of the tubes within each said frame.
Claim 4
Dependent Claim
171 words
A sterilizer unit for fluid media comprising: a. a cabinet, b. main inlet and outlet media flow means disposed on two different sides of the cabinet and located therein, c. parallel banks of irradiation tubes connected to and extending between said inlet and outlet means thereby providing flow of all media from the inlet to the outlet means in each bank, d. said banks having spaces therebetween and being disposed generally in planes transversely of said inlet and outlet means, e. said irradiation tubes being constructed of a material that is transparent to germicidal ultraviolet rays and has nonstick properties whereby there is no film buildup upon the inside of the tubes during extended use thereof, f. frames movably mounted in said spaces between the banks, and g. germicidal ultraviolet ray generators and reflectors operably mounted on said frames, said reflectors being disposed between said generators, h. said frames being movable into operative positions within the cabinet and into inoperative positions outside the cabinet for inspection and replacement of said generators.
Claim 5
Dependent Claim
17 words
A sterilizer unit as defined in claim 5 wherein said irradiation tube material is fluorinated ethylene propylene.
Claim 6
Dependent Claim
55 words
A sterilizer unit as defined in claim 5 wherein each said bank has a plurality of tubes connected to and extending between said inlet and outlet means, said irradiation tubes being serpentine within the plane of each corresponding frame and including loops which are interdigitated for greater compaction of the tubes within each said frame.
Claim 7
Dependent Claim
22 words
A sterilizer unit as defined in claim 7 wherein said reflectors are multifaced and elongated in the direction of the ray generators.
Claim 8
Dependent Claim
148 words
A sterilizer for fluid media comprising: a. main inlet and outlet media flow pipes in parallel with respect to each other, b. parallel banks of irradiation tubes connected to and extending between said inlet and outlet pipes, c. said banks having spaces therebetween, d. said irradiation tubes composed of a material that is transparent to germicidal rays, and e. frames slidably mounted in said spaces and extending transversely of said parallel inlEt and outlet pipes, f. said frames having germicidal ray generators operably mounted thereon and carried thereby selectively into operative position in said spaces and into inoperative position for inspection and replacement of the generators, g. said irradiation tubes in each bank being serpentine and disposed in a vertical plane adjacent a corresponding pair of said frames, h. said irradiation tubes in each bank having interdigitated loops for greater compaction of tubes within each said vertical plane.
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |