Patent US3861571A successfully refreshed from Google Patents.
US3635637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmented roller briquette press with cooled mounting rings
Assignee: Individual
•
Filing: 1970-06-02
•
Granted: 1972-01-18
•
Expires: 1990-06-02
Abstract
Abstract An improved roller-type briquette press for the hot pressing of coal, ores and similar substances, wherein a cylindrical roller core carries a plurality of segments, equipped with molds and forming together an annulus, wherein the improvement comprises that the segments may be easily and reliably mounted on the valve core even at the high temperatures encountered during the pressing by using cooled, shrunk fit mounting rings.
Inventors
- 👤 Hans-Georg Bergendahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:32
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/16; B30B11/165; B30B15/00; B30B15/34; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
An improved roller-type briquette press for the hot pressing of coal, ores and similar materials including a plurality of segments equipped with mold recesses and forming together a full annulus mounted on a cylindrical valve core, wherein the improvement comprises that the segments 30 are provided with lateral projections 34 and the mounting means are rings 36 shrunk on to the said projections, said shrunk rings equipped with an annular coolant channel 38 communicating with coolant channels 48, 50, 54, 56 disposed in said core for supplying and removing the coolant.
Claim 2
Dependent Claim
91 words
An improved roller-type briquette press for the hot pressing of coal, ores and similar materials including a plurality of segments equipped with mold recesses and forming together a full annulus mounted on a cylindrical valve core, wherein the improvement comprises that the segments 30 are provided with lateral projections 34 and the mounting means are rings 36 shrunk on to the said projections, said shrunk rings equipped with an annular coolant channel 38 communicating with coolant channels 48, 50, 54, 56 disposed in said core for supplying and removing the coolant.
Claim 3
Dependent Claim
22 words
A roller briquette press as set forth in claim 1, wherein the said segments are peripherally spaced apart by small expansion gaps.
Claim 4
Dependent Claim
18 words
A roller briquette press as set forth in claim 2, wherein the gaps pass through the mold recesses.
Claim 5
Dependent Claim
27 words
A roller briquette press as set forth in claim 3, wherein the said gaps are either axially parallel or form an acute angle with the roller axis.
Claim 6
Dependent Claim
34 words
A roller briquette press as set forth in claim 1, wherein the said coolant channel 38 is formed in the outer circumference of the shrunk ring and is covered by a weld-mounted ring 40.
Claim 7
Dependent Claim
24 words
A roller briquette press as set forth in claim 1, wherein coolant connections are formed by bores 42, 44 in the said shrunk ring.
Claim 8
Dependent Claim
25 words
A roller briquette press as set forth in claim 1, furthEr comprising stop flanges 60 on the valve core for axially locating the said segments.
Claim 9
Dependent Claim
29 words
A roller briquette press as set forth in claim 1, wherein locating members acting in the direction of the circumference are provided between the segments and the valve core.
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |