Patent US1693422A successfully refreshed from Google Patents.
US3207315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic filter plate moving apparatus in a filter press
Assignee: Individual
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Filing: 1961-07-17
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Granted: 1965-09-21
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Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 Kurita Kintaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:48
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/172
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A FILTER PLATE MOVING APPARATUSFOR A FILTER PRESS COMPRISING: (A) A FRAME; (B) A PLURALITY OF FILTER PLATES SLIDABLY MOUNTED ON SAID FRAME, EACH PLATE HAVING A CAM AND A FOLLOWER ONE EACH SIDE THEREOF, EACH CAM PROJECTING BELOW THE FOLLOWER OF AN ADJACENT PLATE WHEN THE PLATES ARE CLOSE TOGETHER SO THAT THE CAM OF EACH PLATE CONTROLS THE FOLLOWER OF FOLLOWING PLATE; AND (C) MEANS ON SAID FRAME FOR MOVING ONLY THOSE PLATES WHOSE FOLLOWERS ARE FREE FROM ENGAGEMENT WITH THE CAMS OF THEIR PRECEDING PLATES.
Claim 2
Dependent Claim
88 words
A FILTER PLATE MOVING APPARATUSFOR A FILTER PRESS COMPRISING: (A) A FRAME; (B) A PLURALITY OF FILTER PLATES SLIDABLY MOUNTED ON SAID FRAME, EACH PLATE HAVING A CAM AND A FOLLOWER ONE EACH SIDE THEREOF, EACH CAM PROJECTING BELOW THE FOLLOWER OF AN ADJACENT PLATE WHEN THE PLATES ARE CLOSE TOGETHER SO THAT THE CAM OF EACH PLATE CONTROLS THE FOLLOWER OF FOLLOWING PLATE; AND (C) MEANS ON SAID FRAME FOR MOVING ONLY THOSE PLATES WHOSE FOLLOWERS ARE FREE FROM ENGAGEMENT WITH THE CAMS OF THEIR PRECEDING PLATES.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |