US3357482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for heat exchanging
Assignee: Pfaudler Inc
•
Filing: 1965-09-07
•
Granted: 1967-12-12
•
Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Gus M Irving
- 👤 Carl P Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:34
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/16; F28D7/163; F28D7/1638; F28F; F28F9/00; F28F9/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
A METHOD FOR TRANSFERRING HEAT BETWEEN A HEAT TRANSFER LIQUID IN A SINGLE SHELL AND A FLUID BEING CONDUCTED THROUGH AT LEAST ONE TUBE EXTENDING THROUGH TWO OR MORE SEPARATED VOLUMETRIC HEAT TRANSFER AREAS THE SINGLE SHELL CHAMBER COMPRISING THE FOLLOWING STEPS; INTRODUCING A SELECTED QUANTITY OF SAID LIQUID INTO ONLY ONE OF SAID VOLUMETRIC AREAS AND CONFINING SAID LIQUID TO SAID ONE
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |