US3317052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter media web cleaning apparatus
Assignee: Eimco Corp
•
Filing: 1964-07-13
•
Granted: 1967-05-02
•
Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Steven S Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:15
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/044; B01D33/048; B01D33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
VACUUM FILTRATION APPARATUS COMPRISING AN ENDLESS FILTER MEDIA WEB TRAINED TO PASS AROUND A CAKE DISCHARGE SECTION SPACED FROM A FILTER SECTION, MEANS FOR CONTINUOUSLY CLEANING SAID WEB, SAID MEANS COMPRISING A FIRST WIPING MEANS FOR SQUEEZING FILTRATE FROM SAID WEB FOLLOWING CAKE DISCHARGE, MEANS FOR SPRAYING SAID WEB WITH WATER FOLLOWING SAID FIRST WIPING MEANS, SECOND WIPING MEANS FOR REMOVING WASH WATER FROM SAID WEB, A SOLVENT HOLDING TROUGH, MEANS FOR PASSING SAID WEB THROUGH SAID TROUGH AFTER REMOVING EXCESS WASH WATER THEREFROM BY
Claim 2
Dependent Claim
85 words
VACUUM FILTRATION APPARATUS COMPRISING AN ENDLESS FILTER MEDIA WEB TRAINED TO PASS AROUND A CAKE DISCHARGE SECTION SPACED FROM A FILTER SECTION, MEANS FOR CONTINUOUSLY CLEANING SAID WEB, SAID MEANS COMPRISING A FIRST WIPING MEANS FOR SQUEEZING FILTRATE FROM SAID WEB FOLLOWING CAKE DISCHARGE, MEANS FOR SPRAYING SAID WEB WITH WATER FOLLOWING SAID FIRST WIPING MEANS, SECOND WIPING MEANS FOR REMOVING WASH WATER FROM SAID WEB, A SOLVENT HOLDING TROUGH, MEANS FOR PASSING SAID WEB THROUGH SAID TROUGH AFTER REMOVING EXCESS WASH WATER THEREFROM BY
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |