US3318394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for obtaining soil samples
Assignee: Central Michigan University
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Filing: 1965-02-19
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Granted: 1967-05-09
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Expires: 1985-02-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Gale R Gleason
- 👤 Frederick J Ohlmacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:17
CPC Classifications
E; E21; E21B; E21B25/00; E21B25/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SAMPLER DEVICE FOR USE IN BENTHONIC EXPLORATION AND THE LIKE WHICH COMPRISES, (A) AN OPEN-ENDED SAMPLER TUBE ADAPTED TO BE PLUNGED INTO SOIL TO BE SAMPLED, (B) A MOUNTING MEANS FOR SAID TUBE COMPRISING A A JACKET FOR SUPPORTING SAID TUBE THEREIN TO PROVIDE A REFRIGERANT CHAMBER AROUND SAID TUBE, (C) MEANS IN SAID JACKET TO PERMIT THE INTRODUCTION OF REFRIGERANT FROM THE OUTSIDE OF SAID JACKET, (D) A SECOND MEANS FOR STORING A SUPPLY OF REFRIGERANT ADJACENT SAID JACKET COMPRISING A PISTON AND CYLINDER ARRANGEMENT, (E) MEANS FOR COCKING SAID PISTON AGAINST A RESILIENT FORCE IN A POSITION POISED TO DRIVE REFRIGERANT INTO SAID JACKET, AND (F) RELEASING MEANS FOR TRIPPING SAID COCKING MEANS TO RELEASE SAID PISTON.
Claim 2
Dependent Claim
120 words
A SAMPLER DEVICE FOR USE IN BENTHONIC EXPLORATION AND THE LIKE WHICH COMPRISES, (A) AN OPEN-ENDED SAMPLER TUBE ADAPTED TO BE PLUNGED INTO SOIL TO BE SAMPLED, (B) A MOUNTING MEANS FOR SAID TUBE COMPRISING A A JACKET FOR SUPPORTING SAID TUBE THEREIN TO PROVIDE A REFRIGERANT CHAMBER AROUND SAID TUBE, (C) MEANS IN SAID JACKET TO PERMIT THE INTRODUCTION OF REFRIGERANT FROM THE OUTSIDE OF SAID JACKET, (D) A SECOND MEANS FOR STORING A SUPPLY OF REFRIGERANT ADJACENT SAID JACKET COMPRISING A PISTON AND CYLINDER ARRANGEMENT, (E) MEANS FOR COCKING SAID PISTON AGAINST A RESILIENT FORCE IN A POSITION POISED TO DRIVE REFRIGERANT INTO SAID JACKET, AND (F) RELEASING MEANS FOR TRIPPING SAID COCKING MEANS TO RELEASE SAID PISTON.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |