US3294156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary regenerator
Assignee: Caterpillar Inc
•
Filing: 1965-01-21
•
Granted: 1966-12-27
•
Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Albert H Beaufrere
- 👤 Lloyd E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:55
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/045; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/02; Y10S165/021; Y10S165/022
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
175 words
A SEAL IN A ROTARY REGENERATOR FOR KEEPING SEPARATE THE COMPARTMENTS OF THE ROTARY REGENERATOR THROUGH WHICH A DRUM ROTATES WHEREIN THE COMPARTMENTS HAVE DIFFERENT TEMPERATURE AND PRESSURE CONDITIONS COMPRISING IN COMBINATION; A GENERALLY ELONGATED SEALING SUPPORT MEMBER DISPOSED ADJACENT TO A SURFACE OF THE DRUM HAVING A CENTRALLY LOCATED LONGITUDINALLY EXTENDING SLOT, WHEREIN AT LEAST ONE SURFACE WHICH INCLUDES THE SLOT IS CONCAVE; A FIRST FLEXIBLE DIAPHRAGM MEMBER SECURED TO THE CONCAVE SURFACE OF SAID SUPPORT MEMBER AND DISPOSED TO SPAN THE CENTRALLY LOCATED SLOT; A SECOND FLEXIBLE DIAPHRAGM MEMBER SECURED TO THE OPPOSITE SURFACE OF SAID SUPPORT MEMBER AND DISPOSED TO SPAN THE SLOT; A STABILIZING BLOCK DISPOSED IN THE SLOT AND AFFIXED TO SAID FIRST DIAPHRAGM MEMBERS AND SAID SECOND DIAPHRAGM; SEALING BLOCKS AFFIXED TO SAID FIRST DIAPHRAGM MEMBER ON ITS SURFACE REMOTE FROM SAID SECOND DIAPHRAGM MEMBER AND ADJACENT TO THE DRUM SURFACE; AND MEANS OPERABLE TO APPLY A PRESSURE AGAINST SAID FIRST DIAPHRAGM MEMBER WHICH URGES SAID SEALING BLOCKS AWAY FROM SAID SECOND SUPPORT MEMBER AND INTO THE DRUM SURFACE.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |