US3302705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1964-09-21
•
Granted: 1967-02-07
•
Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Wilson J Witten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:43
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/16; F28D7/163; F28D7/1669; F24; F24H; F24H1/00; F24H1/22; F24H1/40; F24H1/403; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471; Y10S165/472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A HEAT EXCHANGER COMPRISING: A MAIN HEADER INCLUDING A HOUSING DEFINING A CHAMBER, MEANS FOR DIVIDING SAID CHAMBER INTO AN INLET REGION AND AN OUTLET REGION, INLET CONDUIT MEANS FOR FEEDING FLUID TO SAID INLET REGION, OUTLET CONDUIT MEANS FOR REMOVING FLUID FROM SAID OUTLET REGION; A FLOATING RETURN HEADER INCLUDING A HOUSING DEFINING A CHAMBER REMOTE FROM SAID MAIN HEADER; A PLURALITY OF HORIZONTALLY DISPOSED, SPACED TUBULAR CONDUITS, AT LEAST ONE OF SAID TUBULAR CONDUITS CONNECTING THE INLET REGION OF THE CHAMBER OF SAID MAIN HEADER TO THE CHAMBER OF SAID FLOATING RETURN HEADER, AT LEAST ONE OTHER OF SAID TUBULAR CONDUITS CONNECTING THE OUTLET REGION OF THE CHAMBER OF SAID MAIN HEADER TO THE CHAMBER OF SAID FLOATING RETURN HEADER; SAID TUBULAR CONDUITS DEFINING A SUBSTANTIALLY HOLLOW CYLINDER AND PROVIDING, IN ADDITION TO THE FLUID FLOW CONNECTIONS BETWEEN SAID HEADERS, THE SOLE MECHANICAL SUPPORT FOR SAID FLOATING RETURN HEADER.
Claim 2
Dependent Claim
151 words
A HEAT EXCHANGER COMPRISING: A MAIN HEADER INCLUDING A HOUSING DEFINING A CHAMBER, MEANS FOR DIVIDING SAID CHAMBER INTO AN INLET REGION AND AN OUTLET REGION, INLET CONDUIT MEANS FOR FEEDING FLUID TO SAID INLET REGION, OUTLET CONDUIT MEANS FOR REMOVING FLUID FROM SAID OUTLET REGION; A FLOATING RETURN HEADER INCLUDING A HOUSING DEFINING A CHAMBER REMOTE FROM SAID MAIN HEADER; A PLURALITY OF HORIZONTALLY DISPOSED, SPACED TUBULAR CONDUITS, AT LEAST ONE OF SAID TUBULAR CONDUITS CONNECTING THE INLET REGION OF THE CHAMBER OF SAID MAIN HEADER TO THE CHAMBER OF SAID FLOATING RETURN HEADER, AT LEAST ONE OTHER OF SAID TUBULAR CONDUITS CONNECTING THE OUTLET REGION OF THE CHAMBER OF SAID MAIN HEADER TO THE CHAMBER OF SAID FLOATING RETURN HEADER; SAID TUBULAR CONDUITS DEFINING A SUBSTANTIALLY HOLLOW CYLINDER AND PROVIDING, IN ADDITION TO THE FLUID FLOW CONNECTIONS BETWEEN SAID HEADERS, THE SOLE MECHANICAL SUPPORT FOR SAID FLOATING RETURN HEADER.
References Cited (Backward Citations)
GB196583A
Cited
US1963857A
Cited
US2146614A
Cited
US2640686A
Cited
GB736759A
Cited
US3173480A
Cited
US3231016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |