Patent US5294218A successfully refreshed from Google Patents.
US5294218A
Expired / Lapsed
US
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Centrifugal discharger for waste materials having a low weight/area ratio
Assignee: GD SpA
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Filing: 1992-04-09
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Granted: 1994-03-15
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Expires: 2012-04-09
Abstract
Abstract A centrifugal discharger, particularly for cigarette manufacturing and/or packing machines, for disposing of waste fibrous and/or sheet material inside a fluidtight bin; wherein a centrifugal separator presents a cylindrical lateral wall, the bottom portion of which is fitted in fluidtight manner inside the bin, and communicates with a chamber in the bin via a tangent discharge conduit and a number of through holes for mutually compensating the pressure in the centrifugal separator and the bin.
Inventors
- 👤 Mauro Fiorentini
- 👤 Bruno Belvederi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:19
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/185; A; A24; A24B; A24B1/00; A24B1/04; B04C5/08; B04C5/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
A centrifugal discharger (1) for waste material (4) having a low weight/area ratio, said discharger comprising a centrifugal separator (2) having a discharge conduit (19); and a fluidtight waste bin (3) communicating with said discharge conduit (19); characterized by the fact that the centrifugal separator (2) comprises a cylindrical lateral wall (6) having a vertical axis (5), penetrating in fluidtight manner inside said bin (3), and the centrifugal separator further comprising a bottom portion (15) inside the bin (3); said discharge conduit (19) extending tangentially from said bottom portion (15) of said lateral wall (6); and compensating means (21) being provided for mutually compensating the pressure inside the centrifugal separator (2) and the bin (3).
Claim 2
Dependent Claim
115 words
A centrifugal discharger (1) for waste material (4) having a low weight/area ratio, said discharger comprising a centrifugal separator (2) having a discharge conduit (19); and a fluidtight waste bin (3) communicating with said discharge conduit (19); characterized by the fact that the centrifugal separator (2) comprises a cylindrical lateral wall (6) having a vertical axis (5), penetrating in fluidtight manner inside said bin (3), and the centrifugal separator further comprising a bottom portion (15) inside the bin (3); said discharge conduit (19) extending tangentially from said bottom portion (15) of said lateral wall (6); and compensating means (21) being provided for mutually compensating the pressure inside the centrifugal separator (2) and the bin (3).
Claim 3
Dependent Claim
31 words
A centrifugal discharger as claimed in claim 1, characterized that said compensating means comprise a plurality of through holes (21) formed through said bottom portion (15) of said lateral wall (6).
Claim 4
Dependent Claim
35 words
A centrifugal discharger as claimed in claim 2, characterized by the fact that said through holes (21) form a band (20) extending over the whole of said bottom portion (15) of said lateral wall (6).
Claim 5
Dependent Claim
23 words
A centrifugal discharger as claimed in claim 3, characterized by the fact that said band (20) also extends along said discharge conduit (19).
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) | 1997-03-14 | 1997-09-13 | 1998-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-14 | 2001-09-13 | 2002-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-14 | 2005-09-13 | 2006-03-15 | $7700.00 | Window Closed / Lapsed |