US4617808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil separation system using superheat
Assignee: Individual
•
Filing: 1985-12-13
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Granted: 1986-10-21
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Expires: 2005-12-13
Abstract
Abstract A combination superheater and oil separator for a refrigeration system having a rotary component, a source of heated medium and a source of non-superheated refrigerant gas-oil mixture includes a sealed casing, a heat transfer unit within the casing having a heat transfer surface, a connection from the interior of the casing to receive the mixture from the source, a connection from the heat source to supply heated medium at a temperature and heat transfer rate through the heat transfer surface to boil off refrigerant gas from the mixture and produce superheated refrigerant gas, a connection on the interior of the casing to deliver superheated refrigerant gas boiled off from the mixture in the interior of said casing, and a delivery conduit to deliver oil from the casing to the rotary component for lubricating the component with the nondiluted oil.
Inventors
- 👤 Thomas C. Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:05
CPC Classifications
F; F01; F01K; F01K25/00; F01K25/08; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/265; F22G; F22G1/00; F25; F25B; F25B43/00; F25B43/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A combination superheater and oil separator for a refrigeration system having a source of heated medium and a source of non-superheated refrigerant gas-oil mixture comprising: a sealed casing; a heat transfer unit within said casing having a heat transfer surface; means on said casing for connecting the interior of said casing to receive said mixture from said source thereof; means for connecting said heat source to supply heated medium at a temperature and heat transfer rate through said heat transfer surface to boil-off refrigerant gas from said mixture and produce superheated refrigerant gas; means on said casing for connecting the interior of said casing to deliver superheated refrigerant gas boiled off from said mixture in the interior of said casing; means on said casing below a predetermined level for connecting the interior of said casing to deliver oil remaining from the boil-off of super-heated refrigerant vapor from said mixture.
Claim 2
Dependent Claim
149 words
A combination superheater and oil separator for a refrigeration system having a source of heated medium and a source of non-superheated refrigerant gas-oil mixture comprising: a sealed casing; a heat transfer unit within said casing having a heat transfer surface; means on said casing for connecting the interior of said casing to receive said mixture from said source thereof; means for connecting said heat source to supply heated medium at a temperature and heat transfer rate through said heat transfer surface to boil-off refrigerant gas from said mixture and produce superheated refrigerant gas; means on said casing for connecting the interior of said casing to deliver superheated refrigerant gas boiled off from said mixture in the interior of said casing; means on said casing below a predetermined level for connecting the interior of said casing to deliver oil remaining from the boil-off of super-heated refrigerant vapor from said mixture.
Claim 3
Dependent Claim
44 words
The combination superheater and oil separator according to claim 1 wherein said casing comprises an insulated cylindrical casing, a sealed bottom, a sealed top and wherein said means for connecting the interior of said casing to both said sources includes connections through said top.
Claim 4
Dependent Claim
25 words
The combination superheater and oil separator according to claim 1 wherein said heat transfer unit comprises a coil located within the interior of said casing.
Claim 5
Dependent Claim
30 words
The combination superheater and oil separator according to claim 1 further including an oil discharge line extending to below said predetermined level and passing through said top of the casing.
Claim 6
Dependent Claim
143 words
A combination superheater and oil separator for a refrigeration system having a rotary component, a source of heated medium and a source of non-superheated refrigerant gas-oil mixture including a sealed casing, a heat transfer unit within the casing having a heat transfer surface, a connection from the interior of the casing to receive the mixture from the source, means for connecting the heat source to supply heated medium at a temperature and heat transfer rate through the heat transfer surface to boil off refrigerant gas from the mixture and produce superheated refrigerant gas, a connection on the interior of the casing to deliver superheated refrigerant gas boiled off from the mixture in the interior of said casing, and a delivery conduit to deliver oil from the casing below a predetermined level to the rotary component for lubricating the component with the nondiluted oil.
Claim 7
Dependent Claim
143 words
A combination superheater and oil separator for a refrigeration system having a rotary component, a source of heated medium and a source of non-superheated refrigerant gas-oil mixture including a sealed casing, a heat transfer unit within the casing having a heat transfer surface, a connection from the interior of the casing to receive the mixture from the source, means for connecting the heat source to supply heated medium at a temperature and heat transfer rate through the heat transfer surface to boil off refrigerant gas from the mixture and produce superheated refrigerant gas, a connection on the interior of the casing to deliver superheated refrigerant gas boiled off from the mixture in the interior of said casing, and a delivery conduit to deliver oil from the casing below a predetermined level to the rotary component for lubricating the component with the nondiluted oil.
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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) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |