US3318796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid treatment apparatus having an endless membrane wound in a serpentine path
Assignee: AMF Inc
•
Filing: 1962-10-17
•
Granted: 1967-05-09
•
Expires: 1982-10-17
Abstract
No abstract record available.
Inventors
- 👤 Brown Jerry Hugh
- 👤 Conning David Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/06; B01D63/068; B01D2313/00; B01D2313/02; B01D2313/34; B01D2313/345; B01D2315/00; B01D2315/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A FLUID TREATMENT APPARATUS COMPRISING, IN COMBINATION, A TANK, AN ENDLESS MEMBRANE, LOWER MEMBRANE SUPPORT MEMBERS DISPOSED HORIZONTALLY WITHIN SAID TANK, UPPER MEMBRANE SUPPORT MEMBERS DISPOSED HORIZONTALLY ABOVE AND PARALLEL TO SAID LOWER MEMBRANE SUPPORT MEMBERS, SAID ENDLESS MEMBRANE BEING WOUND TO PASS FREELY OVER SAID UPPER MEMBRANE SUPPORT MEMBERS AND UNDER SAID LOWER MEMBRANE SUPPORT MEMBERS IN A SERPENTINE PATH FORMING FLUID TREATMENT CELLS IN SAID TANK, MANIFOLD MEANS LEADING FROM OUTSIDE SAID TANK AND COMMUNICATING WITH AT LEAST SOME OF THE FLUID TREATMENT CELLS FORMED BY SAID ENDLESS MEMBRANE, GUIDE MEANS GUIDING SAID ENDLESS MEMBRANE BEYOND THE SERPENTINE PATH OF SAID ENDLESS MEMBRANE, AND DRIVE MEANS MOVING SAID ENDLESS MEMBRANE ABOUT SAID MEMBRANS SUPPORT MEMBERS AND SAID GUIDE MEANS.
Claim 2
Dependent Claim
121 words
A FLUID TREATMENT APPARATUS COMPRISING, IN COMBINATION, A TANK, AN ENDLESS MEMBRANE, LOWER MEMBRANE SUPPORT MEMBERS DISPOSED HORIZONTALLY WITHIN SAID TANK, UPPER MEMBRANE SUPPORT MEMBERS DISPOSED HORIZONTALLY ABOVE AND PARALLEL TO SAID LOWER MEMBRANE SUPPORT MEMBERS, SAID ENDLESS MEMBRANE BEING WOUND TO PASS FREELY OVER SAID UPPER MEMBRANE SUPPORT MEMBERS AND UNDER SAID LOWER MEMBRANE SUPPORT MEMBERS IN A SERPENTINE PATH FORMING FLUID TREATMENT CELLS IN SAID TANK, MANIFOLD MEANS LEADING FROM OUTSIDE SAID TANK AND COMMUNICATING WITH AT LEAST SOME OF THE FLUID TREATMENT CELLS FORMED BY SAID ENDLESS MEMBRANE, GUIDE MEANS GUIDING SAID ENDLESS MEMBRANE BEYOND THE SERPENTINE PATH OF SAID ENDLESS MEMBRANE, AND DRIVE MEANS MOVING SAID ENDLESS MEMBRANE ABOUT SAID MEMBRANS SUPPORT MEMBERS AND SAID GUIDE MEANS.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |