US3762428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetric gas mixing system
Assignee: OCEAN SYSTEMS INC US
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Filing: 1971-11-15
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Granted: 1973-10-02
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Expires: 1991-11-15
Abstract
Abstract A system for mixing gases volumetrically by comparing relative flows between the constituent gases and the combined total gas flow. A signal is supplied to a regulator valve in line with the constituent gas flow conduit to vary the amount of flow therein until the correct proportion is established. The total gas flow is not maintained constant.
Inventors
- 👤 W Beck
- 👤 J Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:51
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; B; B01; B01F; B01F23/00; B01F23/10; B01F23/19; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2514; Y10T137/2521; Y10T137/2529; Y10T137/2559; Y10T137/2564; Y10T137/2572
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
188 words
A system for volumetrically mixing a plurality of gases in predetermined proportions at a relatively high working pressure comprising: a separate supply source for each of said plurality of gases; a mixing member for combining said gases; separate conduit means connecting each supply source to said mixing member; regulating means for maintaining substantially equal pressure in each of said conduit means; a gas discharge line connected to the output of said mixing member; comparator means for comparing the relative ratio of total gas flow in said discharge line and the gas flow in a first one of said conduit means, said comparator means providing an output signal when the relative ratio of flow between said compared gases falls outside a predetermined range; a first adjustable flow regulator connected in line with said first one of said conduit means; a second adjustable flow regulator connected in line with a second one of said conduit means, said second flow regulator being manually adjustable for establishing an initial total gas flow in said discharge line; and means responsive to said comparator means output signal for automatically adjusting said first flow regulator.
Claim 2
Independent Claim
188 words
A system for volumetrically mixing a plurality of gases in predetermined proportions at a relatively high working pressure comprising: a separate supply source for each of said plurality of gases; a mixing member for combining said gases; separate conduit means connecting each supply source to said mixing member; regulating means for maintaining substantially equal pressure in each of said conduit means; a gas discharge line connected to the output of said mixing member; comparator means for comparing the relative ratio of total gas flow in said discharge line and the gas flow in a first one of said conduit means, said comparator means providing an output signal when the relative ratio of flow between said compared gases falls outside a predetermined range; a first adjustable flow regulator connected in line with said first one of said conduit means; a second adjustable flow regulator connected in line with a second one of said conduit means, said second flow regulator being manually adjustable for establishing an initial total gas flow in said discharge line; and means responsive to said comparator means output signal for automatically adjusting said first flow regulator.
Claim 3
Dependent Claim
84 words
A system as defined in claim 1 further comprising: a third adjustable flow regulator connected in line with a third one of said conduit means; second comparator means for comparing the relative ratio of total gas flow in said discharge line and the gas flow in said third conduit means, said second comparator providing a second output signal when said relative ratio of flow falls outside a predetermined range; and means responsive to said second output signal for automatically adjusting said third flow regulator.
Claim 4
Dependent Claim
26 words
A system as defined in claim 2 further comprising: a heat exchange means common to each of said conduit means for maintaining a substantially constant temperature.
References Cited (Backward Citations)
US1452265A
Cited
US1999740A
Cited
US2072384A
Cited
US3478767A
Cited
US3515155A
Cited
US3493005A
Cited
US3558045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |