Patent US3707157A successfully refreshed from Google Patents.
US3707157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Natural gas saver with separator and compressor
Assignee: Individual
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Filing: 1971-08-04
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Granted: 1972-12-26
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Expires: 1991-08-04
Abstract
Abstract A gas pressure relieving system including a liquid separator and compressor provided to permit separation of liquid components from natural gas and return of the natural gas to a distribution system at an appropriate pressure. The system avoids the pollution normally effected by burn-off at a well head and at the same time provides for recovery of liquid gas for later processing.
Inventors
- 👤 Damon F Tipton
- 👤 Lonnie R Jeffers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:04
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0396; Y10T137/2931; Y10T137/3003; Y10T137/8593; Y10T137/85978; Y10T137/86171; Y10T137/87265; Y10T137/87338; Y10T137/87555; Y10T137/87563
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
91 words
A system for blowing down a gas distribution network including a gas service line, said system comprising a bypass line for selectively receiving the flow from the service line, a liquid separator in said bypass line for separating the liquid and gaseous components of a liquid gas mixture, and a compressor in said bypass line downstream of said separator for pressurizing the separated gaseous component to a desired level, and a feed line extending from said compressor back to said service line for a return of the pressurized separated gas component.
Claim 2
Independent Claim
91 words
A system for blowing down a gas distribution network including a gas service line, said system comprising a bypass line for selectively receiving the flow from the service line, a liquid separator in said bypass line for separating the liquid and gaseous components of a liquid gas mixture, and a compressor in said bypass line downstream of said separator for pressurizing the separated gaseous component to a desired level, and a feed line extending from said compressor back to said service line for a return of the pressurized separated gas component.
Claim 3
Dependent Claim
61 words
The system of claim 1 including a shut-off valve in the service line downstream of the point of communication of the bypass line therewith, and a second shut-off valve in said bypass line immediately downstream of communication with said service line whereby an alternate flow through the service line or bypass line can be effected through a control of said valves.
Claim 4
Dependent Claim
28 words
The system of claim 2 including a back flow preventing check valve in said service line immediately upstream of the point of communication of the feed line therewith.
Claim 5
Dependent Claim
15 words
The system of claim 3 wherein said liquid separator includes selectively openable liquid draining means.
Claim 6
Independent Claim
94 words
The method of blowing down a gas distribution system including a service line through which a gaseous flow is occurring comprising the steps of: terminating the flow through the service line at a predetermined point, venting the flow upstream of said point through a closed system including a liquid separator for separating the liquid component of a liquid-gas mixture, retaining the liquid component, passing the gaseous components through a compressor for a pressurization thereof, and returning the pressurized gaseous components through the service line downstream of the point at which the flow was stopped.
Claim 7
Independent Claim
94 words
The method of blowing down a gas distribution system including a service line through which a gaseous flow is occurring comprising the steps of: terminating the flow through the service line at a predetermined point, venting the flow upstream of said point through a closed system including a liquid separator for separating the liquid component of a liquid-gas mixture, retaining the liquid component, passing the gaseous components through a compressor for a pressurization thereof, and returning the pressurized gaseous components through the service line downstream of the point at which the flow was stopped.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |