US3257115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implements for spreading granular or powdered material
Assignee: C Van der Lely NV
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Filing: 1963-08-26
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Granted: 1966-06-21
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Expires: 1983-08-26
Abstract
No abstract record available.
Inventors
- 👤 Lely Ary Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:18
CPC Classifications
A; A01; A01C; A01C17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
AN IMPLEMENT FOR SPREADING GRANULAR OR POWDERY MATERIAL COMPRISING A HOPPER, AN ANNULUS-SHAPED MEMBER MOUNTED AT THE LOWER END OF SAID HOPPER, A ROTATABLE SPREADER DISPOSED UNDER SAID ANNULUS-SHAPED MEMBER, AT LEAST ONE OUTLET PORT PROVIDED IN SAID ANNULUS-SHAPED MEMBER, WHEREBY MATERIAL IN SAID HOPPER IS FED TO SAID SPREADER THROUGH SAID PORT, AN INHERENTLY RESILIENTLY, SUBSTANTIALLY RING-SHAPED MEMBER EMBRACING SAID ANNLUSSHAPED MEMBER, INWARDLY PROJECTING ABUTMENT MEANS ON SAID RING-SHAPED MEMBER FOR CLAMPING SAME TO SAID ANNULUS-SHAPED MEMBER, MASKING MEANS CONNECTED TO SAID RING-SHAPED MEMBER, A CONTROL LEVER CONNECTED TO SAID RING-SHAPED MEMBER TO ROTATABLY ADJUST THE RING-SHAPED MEMBER AROUND SAID ANNULUS-SHAPED MEMBER, CONTROLLING MEANS TO ROTATABLY ADJUST AND RETAIN SAID MASKING MEANS IN ONE OF A PLURALITY OF DIFFERENT POSITIONS RELATIVE TO SAID ANNULUS-SHAPED MEMBER SO AS TO CLOSE OR OPEN SAID PORT.
Claim 2
Dependent Claim
134 words
AN IMPLEMENT FOR SPREADING GRANULAR OR POWDERY MATERIAL COMPRISING A HOPPER, AN ANNULUS-SHAPED MEMBER MOUNTED AT THE LOWER END OF SAID HOPPER, A ROTATABLE SPREADER DISPOSED UNDER SAID ANNULUS-SHAPED MEMBER, AT LEAST ONE OUTLET PORT PROVIDED IN SAID ANNULUS-SHAPED MEMBER, WHEREBY MATERIAL IN SAID HOPPER IS FED TO SAID SPREADER THROUGH SAID PORT, AN INHERENTLY RESILIENTLY, SUBSTANTIALLY RING-SHAPED MEMBER EMBRACING SAID ANNLUSSHAPED MEMBER, INWARDLY PROJECTING ABUTMENT MEANS ON SAID RING-SHAPED MEMBER FOR CLAMPING SAME TO SAID ANNULUS-SHAPED MEMBER, MASKING MEANS CONNECTED TO SAID RING-SHAPED MEMBER, A CONTROL LEVER CONNECTED TO SAID RING-SHAPED MEMBER TO ROTATABLY ADJUST THE RING-SHAPED MEMBER AROUND SAID ANNULUS-SHAPED MEMBER, CONTROLLING MEANS TO ROTATABLY ADJUST AND RETAIN SAID MASKING MEANS IN ONE OF A PLURALITY OF DIFFERENT POSITIONS RELATIVE TO SAID ANNULUS-SHAPED MEMBER SO AS TO CLOSE OR OPEN SAID PORT.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |