US3580645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for transporting and collecting shredded tobacco or the like
Assignee: Körber AG
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Filing: 1969-03-07
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Granted: 1971-05-25
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Expires: 1989-03-07
Abstract
Abstract Apparatus for supplying shredded tobacco to the distributor of a rod cigarette machine comprises a magazine having a front wall connected with the discharge end of a tobacco-admitting first pneumatic conduit and with the intake end of an air-evacuating second pneumatic conduit. A sieve divides the interior of the magazine into an upper compartment which communicates with the intake end of the second conduit and a lower compartment which communicates with the discharge end of the first conduit. The sieve has a first section which offers a relatively low resistance to the passage of air from the lower compartment into the upper compartment when the second conduit evacuates air from the magazine while the first conduit admits tobacco-laden air, and a second section which offers greater resistance to the passage of air and is bypassed by tobacco shreds which leave the discharge end of the first conduit. The second section of the sieve permits flow of air into the second conduit on partial or complete clogging of the first section.
Inventors
- 👤 Klaus Hagenah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:51
CPC Classifications
A; A24; A24C; A24C5/00; A24C5/39; A24C5/392
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
169 words
Apparatus for transporting and collecting particles of fibrous material, particularly shredded tobacco, comprising a magazine defining an internal chamber and including a portion flanking one side of said chamber; a material-admitting first pneumatic conduit having a discharge end connected with said portion to discharge into said chamber a current of air which is laden with particulate material; an air-evacuating second pneumatic conduit having an intake end connected with said portion to evacuate air from said chamber; and air-permeable partition means mounted in said magazine and extending between the ends of said conduits to intercept particulate material which enters by way of said discharge end and tends to travel with air which is drawn into said intake end, said partition means comprising a first section through which the second conduit normally draws air and a second section through which the second conduit draws air in response to at least partial clogging of said first section, said second section being nearer to the ends of said conduits than said first section.
Claim 2
Dependent Claim
169 words
Apparatus for transporting and collecting particles of fibrous material, particularly shredded tobacco, comprising a magazine defining an internal chamber and including a portion flanking one side of said chamber; a material-admitting first pneumatic conduit having a discharge end connected with said portion to discharge into said chamber a current of air which is laden with particulate material; an air-evacuating second pneumatic conduit having an intake end connected with said portion to evacuate air from said chamber; and air-permeable partition means mounted in said magazine and extending between the ends of said conduits to intercept particulate material which enters by way of said discharge end and tends to travel with air which is drawn into said intake end, said partition means comprising a first section through which the second conduit normally draws air and a second section through which the second conduit draws air in response to at least partial clogging of said first section, said second section being nearer to the ends of said conduits than said first section.
Claim 3
Dependent Claim
22 words
Apparatus as defined in claim 1, wherein said conduits have portions adjacent to each other and to said portion of the magazine.
Claim 4
Dependent Claim
19 words
Apparatus as defined in claim 1, wherein said intake end is located at a level above said discharge end.
Claim 5
Dependent Claim
27 words
Apparatus as defined in claim 1, wherein the resistance which said second section offers to the passage of air therethrough exceeds the resistance of said first section.
Claim 6
Dependent Claim
27 words
Apparatus as defined in claim 1, wherein said second section is adjacent to the path of movement of particulate material in said chamber beyond said discharge end.
Claim 7
Dependent Claim
20 words
Apparatus as defined in claim 1, wherein the second section of said partition means is rigid with said first section.
Claim 8
Dependent Claim
30 words
Apparatus as defined in claim 6, wherein said partition means divides the said chamber into first and second compartments which respectively communicate with said discharge end and said intake end.
Claim 9
Dependent Claim
20 words
Apparatus as defined in claim 1, wherein said magazine has an outlet for evacuation of fibrous material from said chamber.
Claim 10
Dependent Claim
31 words
Apparatus as defined in claim 8, further comprising a receptacle for fibrous material which is evacuated by way of said outlet, said receptacle constituting the distributor of a rod cigarette machine.
Claim 11
Dependent Claim
87 words
Apparatus as defined in claim 1, wherein said portion of said magazine has hollow first and second extensions which communicate with said chamber, said first and second extensions being adjacent to each other and being respectively connected with the ends of said first and second conduits, said second section of said partition means being disposed between said extensions so that said second conduit draws air from the first extension into the second extension by way of said second section in response to clogging of said first section.
References Cited (Backward Citations)
US1937158A
Cited
US2812217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |