Patent US1604034A successfully refreshed from Google Patents.
US4124137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas vent tube
Assignee: Messer Griesheim GmbH
•
Filing: 1977-01-24
•
Granted: 1978-11-07
•
Expires: 1997-01-24
Abstract
Abstract An exhaust tube for cryothermal vessels includes means for deflecting the exhaust gas upon entry into the tube.
Inventors
- 👤 Jurgen Hesse
- 👤 Dieter Schulzki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:53
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/005; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0352; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
In an upright cryogenic vessel having a filling pipe for filling the vessel with a low-boiling cryogenic liquid to a predetermined level in the vessel and having a vertically extending exhaust tube in the vessel extending to the predetermined level and leading to the exterior of the vessel for discharging exhaust gas which occurs during the filling process whereby the occurrence of liquid in the exhaust tube indicates the completion of the filling process and the reaching of the predetermined level by the liquid, the improvement being said exhaust tube including deflection means for separating droplets of liquid by deflection of the exhaust gas stream, said exhaust tube being closed at its end below said predetermined level and having a side inlet opening at said predetermined level to comprise said deflection means.
Claim 2
Dependent Claim
132 words
In an upright cryogenic vessel having a filling pipe for filling the vessel with a low-boiling cryogenic liquid to a predetermined level in the vessel and having a vertically extending exhaust tube in the vessel extending to the predetermined level and leading to the exterior of the vessel for discharging exhaust gas which occurs during the filling process whereby the occurrence of liquid in the exhaust tube indicates the completion of the filling process and the reaching of the predetermined level by the liquid, the improvement being said exhaust tube including deflection means for separating droplets of liquid by deflection of the exhaust gas stream, said exhaust tube being closed at its end below said predetermined level and having a side inlet opening at said predetermined level to comprise said deflection means.
Claim 3
Dependent Claim
34 words
In the vessel of claim 1 wherein said end of said exhaust tube is closed by means of a plate sealing said end, and said side inlet opening being located directly above said plate.
Claim 4
Dependent Claim
28 words
In the vessel of claim 1 wherein said vessel is of double walled construction, and said cryogenic liquid is nitrogen which fills said vessel to said predetermined level.
Claim 5
Dependent Claim
28 words
In the vessel of claim 2 wherein the cross section area of said side opening is the same size as the cross section area of said exhaust tube.
Claim 6
Dependent Claim
27 words
In the vessel of claim 1 wherein the cross section area of said side opening is the same size as the cross section area of said exhaust.
References Cited (Backward Citations)
US2123809A
Cited
US3342193A
Cited
US3377813A
Cited
US3643465A
Cited
US3565045A
Cited
US3661191A
Cited
US3817421A
Cited
DE2323020A1
Cited
GB1453534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |