US3334947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction-operated switch means for bifurcations of pneumatic conveyor tubes
Assignee: AMF Inc
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Filing: 1966-08-15
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Granted: 1967-08-08
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Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 Orsi Franco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:35
CPC Classifications
A; A24; A24C; A24C5/00; A24C5/39; A24C5/392; B; B65; B65G; B65G53/00; B65G53/34; B65G53/52; B65G53/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AUTOMATIC SWITCH MEANS FOR BIFURCATIONS OF SUCTIONOPERATED PNEUMATIC CONVEYOR TUBES FOR PARTICULATED MATERIAL, SUCH AS SHREDDED TOBACCO OR THE LIKE, SAID SWITCH MEANS COMPRISING A SUBSTANTIALLY Y-SHAPED JUNCTION BOX; MEANS FOR CONNECTING THE OUTLET OF A PNEUMATIC FEED TUBE TO THE SHANK OR APEX OF THE Y; MEANS FOR CONNECTING TO THE SHANKS OF THE Y THE INLETS OR TWO PNEUMATIC DELIVERY TUBES, ADAPTED TO BE CONNECTED AT WILL TO SUCTION MEANS, AND AT LEAST ONE ELASTICALLY SWINGING DEFLECTING PLATE OR FLAP FASTENED TO THE BOX IN PROXIMITY OF THE OUTLET OF THE SAID FEED TUBE AND ADAPTED TO INTERCEPT THE INLET OF ONE OF THE SAID TWO DELIVERY TUBES WHEN SUCTION IS APPLIED TO THE OTHER OF SAID DELIVERY TUBES.
Claim 2
Dependent Claim
121 words
AUTOMATIC SWITCH MEANS FOR BIFURCATIONS OF SUCTIONOPERATED PNEUMATIC CONVEYOR TUBES FOR PARTICULATED MATERIAL, SUCH AS SHREDDED TOBACCO OR THE LIKE, SAID SWITCH MEANS COMPRISING A SUBSTANTIALLY Y-SHAPED JUNCTION BOX; MEANS FOR CONNECTING THE OUTLET OF A PNEUMATIC FEED TUBE TO THE SHANK OR APEX OF THE Y; MEANS FOR CONNECTING TO THE SHANKS OF THE Y THE INLETS OR TWO PNEUMATIC DELIVERY TUBES, ADAPTED TO BE CONNECTED AT WILL TO SUCTION MEANS, AND AT LEAST ONE ELASTICALLY SWINGING DEFLECTING PLATE OR FLAP FASTENED TO THE BOX IN PROXIMITY OF THE OUTLET OF THE SAID FEED TUBE AND ADAPTED TO INTERCEPT THE INLET OF ONE OF THE SAID TWO DELIVERY TUBES WHEN SUCTION IS APPLIED TO THE OTHER OF SAID DELIVERY TUBES.
References Cited (Backward Citations)
US3206140A
Cited
US3253863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |