US3217547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling device for pressurized conveyors
Assignee: GUSTAFSON Mfg Co
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Filing: 1963-10-07
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Granted: 1965-11-16
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Ray R Cordell
- 👤 Wayne F Gustafson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:26
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N35/00; G01N35/02; G01N35/04; G01N2035/0474; G01N2035/0479; G01N2035/0481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
IN AN AUTOMATIC SAMPLING DEVICE FOR A PNEUMATIC CONVEYING TUBE FOR GRANULAR AND POWDERY TYPE MATERIAL COMPRISING, A CONVEYING TUBE HAVING AN ENLARGED SECTION WITH A FLANGED OPENING THEREIN, A SAMPLING TUBE INCLUDING A FLANGED MOUNTING MEANS SUPOPORTING SAID TUBE AND MOUNTED ON THE FLANGED OPENING OF SAID CONVEYING TUBE, SAID SAMPLING TUBE BEING SEALED IN SAID CONVEYING TUBE AND EXTENDING SUBSTANTIALLY ACROSS SAID CONVEYING TUBE AT SAID ENLARGED SECTION, AN OPENING IN SAID SAMPLING TUBE POSITIONED WITHIN SAID ENLARGED SECTION OF SAID CONVEYING TUBE WHEN SAID SAMPLING TUBE IS MOUNTED ON SAID CONVEYING TUBE, A SLEEVE TYPE VALVE MEMBER SLIDABLY MOUNTED ON SAID SAMPLING TUBE RELATIVE TO THE OPENING IN SAID SAMPLING TUBE TO VARY THE OPENING OF A VALVE FORMED BY THE SLEEVE TYPE VALVE MEMBER MOUNTED ON THE SAMPLING TUBE AND SAID OPENING THEREIN, MEANS FOR SLIDING SAID SLEEVE TYPE VALVE MEMBER ON SAID SAMPLING TUBE INCLUDING A SHAFT EXTENDING PARALLEL TO THE SAMPLING TUBE AND BEING SLIDABLY MOUNTED THROUGH SAID FLANGED MOUNTING OF SAID SAMPLING TUBE, AN AUGER POSITIONED WITHIN SAMPLING TUBE AND JOURNALLED IN THE HOUSING SUPPORTING SAID SAMPLING TUBE FITTING CLOSELY WITH THE INTERIOR OF THE
Claim 2
Dependent Claim
192 words
IN AN AUTOMATIC SAMPLING DEVICE FOR A PNEUMATIC CONVEYING TUBE FOR GRANULAR AND POWDERY TYPE MATERIAL COMPRISING, A CONVEYING TUBE HAVING AN ENLARGED SECTION WITH A FLANGED OPENING THEREIN, A SAMPLING TUBE INCLUDING A FLANGED MOUNTING MEANS SUPOPORTING SAID TUBE AND MOUNTED ON THE FLANGED OPENING OF SAID CONVEYING TUBE, SAID SAMPLING TUBE BEING SEALED IN SAID CONVEYING TUBE AND EXTENDING SUBSTANTIALLY ACROSS SAID CONVEYING TUBE AT SAID ENLARGED SECTION, AN OPENING IN SAID SAMPLING TUBE POSITIONED WITHIN SAID ENLARGED SECTION OF SAID CONVEYING TUBE WHEN SAID SAMPLING TUBE IS MOUNTED ON SAID CONVEYING TUBE, A SLEEVE TYPE VALVE MEMBER SLIDABLY MOUNTED ON SAID SAMPLING TUBE RELATIVE TO THE OPENING IN SAID SAMPLING TUBE TO VARY THE OPENING OF A VALVE FORMED BY THE SLEEVE TYPE VALVE MEMBER MOUNTED ON THE SAMPLING TUBE AND SAID OPENING THEREIN, MEANS FOR SLIDING SAID SLEEVE TYPE VALVE MEMBER ON SAID SAMPLING TUBE INCLUDING A SHAFT EXTENDING PARALLEL TO THE SAMPLING TUBE AND BEING SLIDABLY MOUNTED THROUGH SAID FLANGED MOUNTING OF SAID SAMPLING TUBE, AN AUGER POSITIONED WITHIN SAMPLING TUBE AND JOURNALLED IN THE HOUSING SUPPORTING SAID SAMPLING TUBE FITTING CLOSELY WITH THE INTERIOR OF THE
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |