Patent US3195959A successfully refreshed from Google Patents.
US3195959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic collecting system
Assignee: N Corah St Margaret Ltd
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Filing: 1963-06-03
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Granted: 1965-07-20
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Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Brewin Arthur
- 👤 Desmond C Masters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:58
CPC Classifications
D; D04; D04B; D04B37/00; B; B65; B65G; B65G51/00; B65G51/02; D04B15/00; D04B15/88; D04B15/92; D06; D06H; D06H3/00; D06H3/16; D06H3/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A SYSTEM FOR THE COLLECTION OF GOODS FROM A PLURALITY OF DESPATCH POINTS, COMPRISING A MAIN SERVICE LINE, A FEED CONDUIT CONNECTED TO EACH DESPATCH POINT AND TO SAID SERVICE LINE, A BLOWER NOZZLE ASSOCIATED WITH EACH FEED CONDUIT AND ADAPTED TO APPLY A COMPRESSED AIR IMPULSE DOWNSTREAM OF THIS FEED CONDUIT AND TOWARDS THE MAIN SERVICE LINE, AND A NON-RETURN VALVE BETWEEM SAID NOZZLE AND SAID SERVICE LINE SAID NON-RETURN VALVE COMPRISING A FLAP HINGED TO AND SEATED AGAINST AN ANNULAR STOP SURFACE IN SAID FEED CONDUIT IMMEDIATELY IN FRONT OF SAID NOZZLE, SUCH THAT THE FLAP WILL BE SWUNG UPWARD BY THE DIRECT IMPACT OF AN AIR BLAST FROM SAID NOZZLE, AND THEREBY OPENING A PASSAGE INTO
Claim 2
Independent Claim
119 words
A SYSTEM FOR THE COLLECTION OF GOODS FROM A PLURALITY OF DESPATCH POINTS, COMPRISING A MAIN SERVICE LINE, A FEED CONDUIT CONNECTED TO EACH DESPATCH POINT AND TO SAID SERVICE LINE, A BLOWER NOZZLE ASSOCIATED WITH EACH FEED CONDUIT AND ADAPTED TO APPLY A COMPRESSED AIR IMPULSE DOWNSTREAM OF THIS FEED CONDUIT AND TOWARDS THE MAIN SERVICE LINE, AND A NON-RETURN VALVE BETWEEM SAID NOZZLE AND SAID SERVICE LINE SAID NON-RETURN VALVE COMPRISING A FLAP HINGED TO AND SEATED AGAINST AN ANNULAR STOP SURFACE IN SAID FEED CONDUIT IMMEDIATELY IN FRONT OF SAID NOZZLE, SUCH THAT THE FLAP WILL BE SWUNG UPWARD BY THE DIRECT IMPACT OF AN AIR BLAST FROM SAID NOZZLE, AND THEREBY OPENING A PASSAGE INTO
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |