US3168138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger having foreign matter trapping and removing means
Assignee: Ingersoll Rand Co
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Filing: 1962-08-06
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Granted: 1965-02-02
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Expires: 1982-08-06
Abstract
No abstract record available.
Inventors
- 👤 Robert J Stoker
- 👤 Robert D Board
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:17
CPC Classifications
F; F28; F28B; F28B9/00; F28B9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A HEAT EXCHANGER COMPRISING: (A) CASING MEANS FORMING A CHAMBER, (B) INLET AND OUTLET MEANS COMMUNICATING WITH SAID CHAMBER TO PROVIDE THE FLOW OF ONE FLUID THERETHROUGH, (C) A PLURALITY OF FIRST TUBES AND A PLURALITY OF SECOND TUBES EXTENDING ACROSS SAID CHAMBER TO CONDUCT A SECOND FLUID IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH THE FIRST FLUID, (D) TRANSFER MEANS AT ONE END OF SAID CASING MEANS TO COMMUNICATE THE ADJACENT ENDS OF SAID FIRST AND SAID SECOND TUBES AND PROVIDE THE FLOW OF FLUID FROM THE FIRST TUBES TO THE SECOND TUBES, (E) A HEADER DISPOSED AT THE CASING MEANS AT THE OPPOSITE END FROM SAID TRANSFER MEANS, (F) A PARTITION IN SAID HEADER TO DIVIDE THE INTERIOR OF THE LATTER INTO SAID INLET CHAMBER COMMUNICATING WITH SAID FIRST TUBES AND AN OUTLET CHAMBER COMMUNICATING WITH SAID SECOND TUBES,
Claim 2
Dependent Claim
140 words
A HEAT EXCHANGER COMPRISING: (A) CASING MEANS FORMING A CHAMBER, (B) INLET AND OUTLET MEANS COMMUNICATING WITH SAID CHAMBER TO PROVIDE THE FLOW OF ONE FLUID THERETHROUGH, (C) A PLURALITY OF FIRST TUBES AND A PLURALITY OF SECOND TUBES EXTENDING ACROSS SAID CHAMBER TO CONDUCT A SECOND FLUID IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH THE FIRST FLUID, (D) TRANSFER MEANS AT ONE END OF SAID CASING MEANS TO COMMUNICATE THE ADJACENT ENDS OF SAID FIRST AND SAID SECOND TUBES AND PROVIDE THE FLOW OF FLUID FROM THE FIRST TUBES TO THE SECOND TUBES, (E) A HEADER DISPOSED AT THE CASING MEANS AT THE OPPOSITE END FROM SAID TRANSFER MEANS, (F) A PARTITION IN SAID HEADER TO DIVIDE THE INTERIOR OF THE LATTER INTO SAID INLET CHAMBER COMMUNICATING WITH SAID FIRST TUBES AND AN OUTLET CHAMBER COMMUNICATING WITH SAID SECOND TUBES,
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |