US3829165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-stoppage apparatus and method for air conveying systems
Assignee: BOON BRUCE T 23 YORK TOWN ROAD WAYNE NEW JERSEY 07470
•
Filing: 1972-08-31
•
Granted: 1974-08-13
•
Expires: 1992-08-31
Abstract
Abstract Anti-stoppage or anti-clogging apparatus and method for pneumatic conveying system wherein the conveyed material is more efficiently and more rapidly separated from the conveying pneumatic stream. A specially designed bypass element or pre-air separation station is positioned upstream and adjacent the separation or collection station. This pre-air separation station functions to reduce the operating vacuum or pressure of the system by releasing or separating at least a portion of the conveying air stream from the material being conveyed prior to the material entering the separation or collection station. The released or separated portion of air by-passes the area of the separation station where the conveyed material is removed from the system.
Inventors
- 👤 B Boon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:22
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/60
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
Apparatus for conveying and collecting sheets of fibrous material from an air stream comprising: a. a conveying duct carrying said material; b. a pre-selection chamber including an inner perforated conduit connected to said conveying duct, said perforations extending about the circumference of said conduit and an outer casing surrounding said inner conduit to form an annular space for the collection of air; c. an exit conduit connected directly between said annular space and the atmosphere for the exhaust of air; d. a final separation chamber including a storage bin for the collection of said fibrous material connected to said inner perforated conduit and a perforated screen positioned adjacent to the top of the storage bin, thereby defining an upper space also for the exhaust of air; and e. an exit port connected between said upper space and said exit conduit for the independent removal of air from the upper space.
Claim 2
Dependent Claim
150 words
Apparatus for conveying and collecting sheets of fibrous material from an air stream comprising: a. a conveying duct carrying said material; b. a pre-selection chamber including an inner perforated conduit connected to said conveying duct, said perforations extending about the circumference of said conduit and an outer casing surrounding said inner conduit to form an annular space for the collection of air; c. an exit conduit connected directly between said annular space and the atmosphere for the exhaust of air; d. a final separation chamber including a storage bin for the collection of said fibrous material connected to said inner perforated conduit and a perforated screen positioned adjacent to the top of the storage bin, thereby defining an upper space also for the exhaust of air; and e. an exit port connected between said upper space and said exit conduit for the independent removal of air from the upper space.
Claim 3
Dependent Claim
23 words
Apparatus as claimed in claim 1 wherein a rotatable damper plate is positioned in said exit conduit to reduce the air flow therethrough.
Claim 4
Dependent Claim
24 words
Apparatus as claimed in claim 1 wherein at least one door is provided in the storage bin for the removal of said fibrous material.
Claim 5
Dependent Claim
21 words
Apparatus as defined in claim 1 wherein the cross sectional area of said outer casing increases in the direction of flow.
Claim 6
Dependent Claim
17 words
Apparatus as defined in claim 1 wherein said outer casing is substantially formed in a frustro-conical shape.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |