Patent US3834130A successfully refreshed from Google Patents.
US3834130A
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Hydrocarbon trap
Assignee: Texaco Inc
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Filing: 1972-11-01
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Granted: 1974-09-10
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Expires: 1992-11-01
Abstract
Abstract Apparatus includes U-tubes having quick disconnect self-sealing connectors in which one U-tube is packed with activated alumina which is held in place by glass wool and wire gauze. Another Utube includes activated charcoal held in place by glass wool and wire gauze. When the U-tubes are immersed in a cooling bath, they trap light hydrocarbons from a gas passing through them. The Utube with the activated alumina traps light hydrocarbons above methane in molecular weight while the U-tube with the activated charcoal traps any methane that has passed through the activated alumina U-tube.
Inventors
- 👤 K Bissada
- 👤 J Allison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:28
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/104; B01D2257/00; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2257/7025; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40086; B01D2259/414; B01D2259/4141; B01D2259/4145; B01D53/0438; Y; Y02; Y02C; Y02C20/00; Y02C20/20; Y10; Y10T; Y10T436/00; Y10T436/25; Y10T436/25875
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
41 words
A hydrocarbon trap as described in claim 1 in which the predetermined manner is in vacuo at approximately 10 torr, with the seals in an open mode, the predetermined temperature is substantially 90*C and the preDetermined time is substantially 24 hours.
Claim 2
Dependent Claim
150 words
A hydrocarbon trap as described in claim 2 in which the first trapping means traps light hydrocarbons above methane in molecular weight, and further comprises second means for trapping methane gas includes self-sealing connectors, a second body connected to the last mentioned connectors, a second adsorbent contained with the second body, glass wool plugs for retaining the second adsorbent and wire gauze plugs for retaining the glass wool plugs; means for cooling the first and second trapping means to a predetermined temperature; and means for connecting the first trapping means to the second trapping means so that gas entering said first trapping means will pass through said first trapping means, except for the light hydrocarbons above methane in molecular weight which are trapped by the first trapping means, and into said second trapping means, where the methane is trapped by the second trapping means while the non-trapped gas is discharged.
Claim 3
Dependent Claim
27 words
A hydrocarbon trap as described in claim 3 in which the adsorbent in the first trapping means is activated alumina and the second adsorbent is activated charcoal.
Claim 4
Dependent Claim
43 words
A hydrocarbon trap as described in claim 4 in which the activated alumina is of 30-60 mesh and is in a quantity of three cubic centimeters, and the activated charcoal is of 30-60 mesh and is in a quantity of three cubic centimeters.
References Cited (Backward Citations)
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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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |