US3343800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crushing and drying apparatus
Assignee: FLSmidth and Co AS
•
Filing: 1965-04-02
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Granted: 1967-09-26
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Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Rasmussen Frits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:56
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/20; B02C13/02; B02C13/06; B02C13/09; B02C13/095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
AN APPARATUS FOR SIMULTANEOUSLY CRUSHING AND DRYING MOIST MATERIAL, COMPRISING A CASING HAVING OPENINGS AT ITS TOP AND BOTTOM, MEANS FOR INTRODUCING HOT GAS INTO THE CASING THROUGH THE BOTTOM OPENING, MEANS FOR INTRODUCING MATERIAL TO BE CRUSHED INTO THE CASING AND FOR CONDUCTING GAS AND ENTRAINED CRUSHED MATERIAL FROM THE CASING THROUGH THE TOP OPENING, AND CRUSHING MEANS INSIDE THE CASING IN THE PATH OF GAS FLOWING UPWARDLY THROUGH THE CASING, THE CRUSHING MEANS INCLUDING IMPACTORS FOR CRUSHING MATERIAL AGAINST IMPACT MEMBERS AND THE IMPACT MEMBERS ADJACENT TO BUT SPACED FROM THE CASING SIDE WALLS AND CO-OPERATING THEREWITH TO DEFINE AT LEAST ONE BY-PASS OPEN AT ITS BOTTOM TO RECEIVE PART OF THE HOT GAS INTRODUCED THROUGH THE BOTTOM OPENING OF THE APPARATUS WITH THE GAS FLOWING UPWARDLY THROUGH THE BY-PASS IN HEAT EXCHANGE RELATIONSHIP WITH THE IMPACT MEMBERS TO DRY MATERIAL IN CONTACT THEREWITH AND THE TOP OF THE BY-PASS OPENING ADJACENT THE TOP OPENING OF THE APPARATUS SO THAT GAS FROM THE BY-PASS COMBINES WITH THE GAS AND ENTRAINED MATERIAL TO DRY THE ENTRAINED MATERIAL.
Claim 2
Independent Claim
178 words
AN APPARATUS FOR SIMULTANEOUSLY CRUSHING AND DRYING MOIST MATERIAL, COMPRISING A CASING HAVING OPENINGS AT ITS TOP AND BOTTOM, MEANS FOR INTRODUCING HOT GAS INTO THE CASING THROUGH THE BOTTOM OPENING, MEANS FOR INTRODUCING MATERIAL TO BE CRUSHED INTO THE CASING AND FOR CONDUCTING GAS AND ENTRAINED CRUSHED MATERIAL FROM THE CASING THROUGH THE TOP OPENING, AND CRUSHING MEANS INSIDE THE CASING IN THE PATH OF GAS FLOWING UPWARDLY THROUGH THE CASING, THE CRUSHING MEANS INCLUDING IMPACTORS FOR CRUSHING MATERIAL AGAINST IMPACT MEMBERS AND THE IMPACT MEMBERS ADJACENT TO BUT SPACED FROM THE CASING SIDE WALLS AND CO-OPERATING THEREWITH TO DEFINE AT LEAST ONE BY-PASS OPEN AT ITS BOTTOM TO RECEIVE PART OF THE HOT GAS INTRODUCED THROUGH THE BOTTOM OPENING OF THE APPARATUS WITH THE GAS FLOWING UPWARDLY THROUGH THE BY-PASS IN HEAT EXCHANGE RELATIONSHIP WITH THE IMPACT MEMBERS TO DRY MATERIAL IN CONTACT THEREWITH AND THE TOP OF THE BY-PASS OPENING ADJACENT THE TOP OPENING OF THE APPARATUS SO THAT GAS FROM THE BY-PASS COMBINES WITH THE GAS AND ENTRAINED MATERIAL TO DRY THE ENTRAINED MATERIAL.
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US568289A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |