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Patent US3685925A successfully refreshed from Google Patents.
US3685925A
Expired / Lapsed
US
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Blowdown storage for compressors
Assignee: Individual
•
Filing: 1970-10-28
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Granted: 1972-08-22
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Expires: 1990-10-28
Abstract
Abstract When a compressor is shut down, the gas in its pumping cylinders is discharged into a blowdown storage tank. When the compressor is started again, gas from the blowdown storage tank is used as a gas source for the compressor until pressure in the storage tank approaches normal supply pressure.
Inventors
- 👤 Robert Mcjones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:46
CPC Classifications
F; F04; F04B; F04B41/00; F04B41/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
128 words
A blowdown storage compressor system comprising: a. a compressor having an inlet for receiving a low pressure gas from a source thereof and an outlet for discharging high pressure gas to a delivery point; b. a blowdown storage vessel; c. means for selectively communicating the compressor inlet with the storage vessel when the pressure in the storage vessel exceeds the pressure from the source of low pressure gas by a predetermined amount; d. means for preventing gas flow from the low pressure source to the storage vessel; e. means for selectively communicating the compressor outlet with the storage vessel; f. means for preventing gas flow from the storage vessel to the compressor outlet; and g. means for preventing gas flow from the delivery point to the storage vessel.
Claim 2
Dependent Claim
128 words
A blowdown storage compressor system comprising: a. a compressor having an inlet for receiving a low pressure gas from a source thereof and an outlet for discharging high pressure gas to a delivery point; b. a blowdown storage vessel; c. means for selectively communicating the compressor inlet with the storage vessel when the pressure in the storage vessel exceeds the pressure from the source of low pressure gas by a predetermined amount; d. means for preventing gas flow from the low pressure source to the storage vessel; e. means for selectively communicating the compressor outlet with the storage vessel; f. means for preventing gas flow from the storage vessel to the compressor outlet; and g. means for preventing gas flow from the delivery point to the storage vessel.
Claim 3
Dependent Claim
42 words
The blowdown sTorage compressor system claimed in claim 1 including: a. means for preventing gas flow from the storage vessel to the low pressure source; and b. means for communicating the compressor inlet with the compressor outlet at a predetermined relief pressure.
Claim 4
Dependent Claim
153 words
The blowdown storage compressor system claimed in claim 2 wherein: a. the selective communication means between the compressor inlet and the storage vessel comprises a regulator valve between the storage vessel and the inlet of the compressor which is sensitive to both the storage vessel pressure and the pressure of the low pressure gas source to communicate the storage vessel with the inlet of the compressor only when the pressure in the storage vessel exceeds the pressure from the source of low pressure gas source by a predetermined amount; b. the means for preventing gas flow from the low pressure source to the storage vessel includes a one-way check valve disposed in series between the compressor inlet and the storage vessel; and c. the means for preventing gas flow from the storage vessel to the compressor outlet includes a one-way check valve disposed in series between the compressor outlet and the storage vessel.
Claim 5
Dependent Claim
75 words
The blowdown storage compressor system claimed in claim 3 wherein: a. the means for preventing gas flow from the delivery point to the storage vessel includes a one-way check valve disposed in series between the delivery point and the storage vessel; and b. the means for preventing gas flow from the storage vessel to the low pressure source includes a one-way check valve disposed in series between the storage vessel and the low pressure source.
References Cited (Backward Citations)
US2475701A
Cited
US2449740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |