US3131758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger apparatus
Assignee: Individual
•
Filing: 1959-06-04
•
Granted: 1964-05-05
•
Expires: 1979-06-04
Abstract
No abstract record available.
Inventors
- 👤 Donald Q Kern
- 👤 Conrad O Hersam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:20
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/06; F; F28; F28F; F28F9/00; F28F9/02; F28F9/0229; F28F9/04; F28F9/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/4938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
IN A HEAT EXCHANGER APPARATUS, THE COMBINATION OF A CASING STRUCTURE COMPRISING A SHELL AND AN INTEGRATED TUBE SHEET ASSEMBLY SEALING EACH END OF SAID SHELL, EXIT AND ENTRY MEANS FOR FLUID FLOW PROVIDED ON SAID SHELL AND COMMUNICATING WITH THE INTERIOR THEREOF, SAID TUBE SHEET ASSEMBLY COMPRISING A PAIR OF INTEGRATED SPACED TUBE SHEETS DEFINING A MANIFOLD CHAMBER THEREBETWEEN, A FLUID FLOW INLET NOZZLE PROVIDED ON ONE OF SAID TUBE SHEET ASSEMBLIES AND COMMUNICATING WITH THE MANIFOLD CHAMBER THEREOF, A FLUID FLOW OUTLET NOZZLE PROVIDED ON THE OTHER OF SAID TUBE SHEET ASSEMBLIES AND COMMUNICATING WITH THE MANIFOLD CHAMBER THEREOF, A PLURALITY OF TUBES TRAVERSING SAID TUBE SHEET ASSEMBLIES AND SUPPORTED IN PREDETERMINED SPACED RELATIONSHIP THEREBY, EACH OF SAID TUBES HAVING AN INLET APERTURE PROVIDED THEREIN IN COMMUNICATION WITH SAID INLET MANIFOLD CHAMBER AND HAVING AN OUTLET APERTURE THEREIN IN COMMUNICATION WITH SAID OUTLET MANIFOLD CHAMBER, AND SAID INLET AND OUTLET APERTURES DEFINING THE SOLE COMMUNICATION FOR FLUID FLOW BETWEEN SAID INLET AND OUTLET MANIFOLD CHAMBERS.
Claim 2
Dependent Claim
167 words
IN A HEAT EXCHANGER APPARATUS, THE COMBINATION OF A CASING STRUCTURE COMPRISING A SHELL AND AN INTEGRATED TUBE SHEET ASSEMBLY SEALING EACH END OF SAID SHELL, EXIT AND ENTRY MEANS FOR FLUID FLOW PROVIDED ON SAID SHELL AND COMMUNICATING WITH THE INTERIOR THEREOF, SAID TUBE SHEET ASSEMBLY COMPRISING A PAIR OF INTEGRATED SPACED TUBE SHEETS DEFINING A MANIFOLD CHAMBER THEREBETWEEN, A FLUID FLOW INLET NOZZLE PROVIDED ON ONE OF SAID TUBE SHEET ASSEMBLIES AND COMMUNICATING WITH THE MANIFOLD CHAMBER THEREOF, A FLUID FLOW OUTLET NOZZLE PROVIDED ON THE OTHER OF SAID TUBE SHEET ASSEMBLIES AND COMMUNICATING WITH THE MANIFOLD CHAMBER THEREOF, A PLURALITY OF TUBES TRAVERSING SAID TUBE SHEET ASSEMBLIES AND SUPPORTED IN PREDETERMINED SPACED RELATIONSHIP THEREBY, EACH OF SAID TUBES HAVING AN INLET APERTURE PROVIDED THEREIN IN COMMUNICATION WITH SAID INLET MANIFOLD CHAMBER AND HAVING AN OUTLET APERTURE THEREIN IN COMMUNICATION WITH SAID OUTLET MANIFOLD CHAMBER, AND SAID INLET AND OUTLET APERTURES DEFINING THE SOLE COMMUNICATION FOR FLUID FLOW BETWEEN SAID INLET AND OUTLET MANIFOLD CHAMBERS.
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |