US3360130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Noritake Iron Works Co Ltd
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Filing: 1964-09-09
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Granted: 1967-12-26
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Expires: 1984-09-09
Abstract
No abstract record available.
Inventors
- 👤 Kaga Fumio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:29
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/04; B30B9/10; B01; B01D; B01D25/00; B01D25/12; B01D25/127; B01D25/172; B01D25/19; B01D25/21; B01D25/215; B01D25/32; B01D25/322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A FILTER PRESS COMPRISING A FIXED FIRST HEAD, A FIXED REAR HEAD, A MOVABLE HEAD DISPOSED THEREBETWEEN, A PLURALITY OF PLATE ELEMENTS AND FILTER CLOTHS ALTERNATELY ARRANGED IN PARALLEL BETWEEN SAID FIRST HEAD AND SAID MOVABLE HEAD, SAID PLATE ELEMENTS AND SAID MOVABLE HEAD HAVING HANGERS PROTRUDING HORIZONTALLY FROM BOTH SIDES THEREOF, SIDE RAILS EXTENDING BETWEEN BOTH SIDES OF SAID FIRST HEAD AND BOTH SIDES OF SAID REAR HEAD AND ON WHICH SAID HANGERS ARE SLIDABLE DRIVE CHAINS HAVING FEED PAWLS AT FIXED INTERVALS PARALLELLY ARRANGED BELOW SAID HANGERS ON THE OUTER SIDES OF BOTH SIDE RAILS, SAID HANGERS EACH BEING PROVIDED WITH A LONGITUDINAL SLOT AND RECESS THAT EXTENDS FROM THE REAR PART TO THE FRONT PART, AN ENGAGING PIECE IN SAID LONGITUDINAL SLOT, A REVERSE L-SHAPED HOOK DEPRESSING BAR ON THE OUTER LATERAL SIDE OF THE ENGAGING PIECE, THE ENGAGING PIECE HAVING A TRANSVERSE SLOT IN THE MIDDLE, AND ENGAGING PIECE BEING ARRANGED TO BE STOPPED AT THE UPPER EDGE OF THE LONGITUDINAL SLOT WHEN THE ENGAGING PIECE IS LOWERED, A LEVER SHAFT ON THE REAR PART OF EACH OF SAID HANGERS, A LEVER HAVING A FRONT ARM AND A REAR ARM AT AN OBTUSE ANGLE TO EACH OTHER IS SWINGABLY FITTED ON THE LEVER SHAFT, THE FRONT ARM OF SAID LEVER EXTENDING INTO THE TRANSVERSE SLOT OF THE ENGAGING PIECE
Claim 2
Dependent Claim
223 words
A FILTER PRESS COMPRISING A FIXED FIRST HEAD, A FIXED REAR HEAD, A MOVABLE HEAD DISPOSED THEREBETWEEN, A PLURALITY OF PLATE ELEMENTS AND FILTER CLOTHS ALTERNATELY ARRANGED IN PARALLEL BETWEEN SAID FIRST HEAD AND SAID MOVABLE HEAD, SAID PLATE ELEMENTS AND SAID MOVABLE HEAD HAVING HANGERS PROTRUDING HORIZONTALLY FROM BOTH SIDES THEREOF, SIDE RAILS EXTENDING BETWEEN BOTH SIDES OF SAID FIRST HEAD AND BOTH SIDES OF SAID REAR HEAD AND ON WHICH SAID HANGERS ARE SLIDABLE DRIVE CHAINS HAVING FEED PAWLS AT FIXED INTERVALS PARALLELLY ARRANGED BELOW SAID HANGERS ON THE OUTER SIDES OF BOTH SIDE RAILS, SAID HANGERS EACH BEING PROVIDED WITH A LONGITUDINAL SLOT AND RECESS THAT EXTENDS FROM THE REAR PART TO THE FRONT PART, AN ENGAGING PIECE IN SAID LONGITUDINAL SLOT, A REVERSE L-SHAPED HOOK DEPRESSING BAR ON THE OUTER LATERAL SIDE OF THE ENGAGING PIECE, THE ENGAGING PIECE HAVING A TRANSVERSE SLOT IN THE MIDDLE, AND ENGAGING PIECE BEING ARRANGED TO BE STOPPED AT THE UPPER EDGE OF THE LONGITUDINAL SLOT WHEN THE ENGAGING PIECE IS LOWERED, A LEVER SHAFT ON THE REAR PART OF EACH OF SAID HANGERS, A LEVER HAVING A FRONT ARM AND A REAR ARM AT AN OBTUSE ANGLE TO EACH OTHER IS SWINGABLY FITTED ON THE LEVER SHAFT, THE FRONT ARM OF SAID LEVER EXTENDING INTO THE TRANSVERSE SLOT OF THE ENGAGING PIECE
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |