Patent US3173480A successfully refreshed from Google Patents.
US3173480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger assembly
Assignee: Individual
•
Filing: 1962-12-26
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Granted: 1965-03-16
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Kenneth O Parker
- 👤 Joseph P Boland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:16
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0236; F28F9/0239; F28D; F28D7/00; F28D7/16; F28D7/163; F28D7/1638; F28F27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A TUBULOUS HEAT EXCHANGER, INCLUDING A SHELL, SPACED APART TUBE SHEETS IN SAID SHELL, ONE ANCHORED THERETO AND THE OTHER FLOATING, TUBES SUPPORTED BETWEEN SAID SHEETS, CLOSURE MEANS SECURED TO SAID FLOATING TUBE SHEET AND DEFINING THEREWITH A CHAMBER IN COMMUNICATION WITH ADJACENT TUBE ENDS, AND ANOTHER CLOSURE MEANS IN SUPERPOSED SPACED RELATION TO THE FIRST SAID CLOSURE MEANS AND SECURED TO SAID SHELL TO BE IN SURROUNDING RELATION TO THE FIRST SAID CLOSURE MEANS, AND MEANS TO RESTRICT COMMUNICATION OF SAID LAST NAMED CHAMBER WITH THE SHELL INTERIOR AROUND SAID FLOATING TUBE SHEET TO DIAMATERICALLY OPPOSED PORTIONS OF THE SHELL INTERIOR.
Claim 2
Dependent Claim
102 words
A TUBULOUS HEAT EXCHANGER, INCLUDING A SHELL, SPACED APART TUBE SHEETS IN SAID SHELL, ONE ANCHORED THERETO AND THE OTHER FLOATING, TUBES SUPPORTED BETWEEN SAID SHEETS, CLOSURE MEANS SECURED TO SAID FLOATING TUBE SHEET AND DEFINING THEREWITH A CHAMBER IN COMMUNICATION WITH ADJACENT TUBE ENDS, AND ANOTHER CLOSURE MEANS IN SUPERPOSED SPACED RELATION TO THE FIRST SAID CLOSURE MEANS AND SECURED TO SAID SHELL TO BE IN SURROUNDING RELATION TO THE FIRST SAID CLOSURE MEANS, AND MEANS TO RESTRICT COMMUNICATION OF SAID LAST NAMED CHAMBER WITH THE SHELL INTERIOR AROUND SAID FLOATING TUBE SHEET TO DIAMATERICALLY OPPOSED PORTIONS OF THE SHELL INTERIOR.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |