US3101619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling apparatus
Assignee: Pure Oil Co
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Filing: 1960-10-24
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Granted: 1963-08-27
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Expires: 1980-10-24
Abstract
No abstract record available.
Inventors
- 👤 Wesley L Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:21
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035; G01N30/00; G01N30/02; G01N30/04; G01N30/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A DEVICE FOR SAMPLING FLUIDS IN A RECEPTACLE COMPRISING A PISTON HOUSING INCLUDING A CLOSED-ENDED TUBULAR PORTION PROJECTING THEREFROM, SAID HOUSING BEING ADAPTED TO MATE WITH AN OPENING IN SAID RECEPTACLE SO THAT SAID TUBULAR PORTION PROJECTS THEREINTO, A PISTON SLIDABLY SUPPORTED WITHIN SAID HOUSING HAVING ADVANCED AND RETRACTED POSITIONS AND COOPERATING WITH THE INTERIOR OF SAID TUBULAR PORTION TO FORM A FIRST CYLINDER-LIKE ENCLOSURE, SAID PISTON AND PISTON HOUSING BEING SHAPED TO FORM A SECOND ENCLOSURE EXTENDING THEREBETWEEN FOR AN AXIAL DISTANCE SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN SAID ADVANCED AND RETRACTED POSITIONS OF SAID PISTON, A PORT COMMUNICATING SAID FIRST ENCLOSURE AND THE EXTERIOR OF SAID TUBULAR PORTION AT A POINT INTERMEDIATE SAID ADVANCED AND RETRACTED POSITIONS OF THE HEAD OF SAID PISTON, A PASSAGE IN SAID PISTON COMMUNICATING SAID ENCLOSURES, A CHECK-VAVE IN SAID PASSAGE FOR PREVENTING FLOW TOWARD SAID FIRST ENCLOSURE, A SECOND PASSAGE COMMUNICATING SAID SECOND ENCLOSURE AND THE EXTERIOR OF SAID HOUSING, AND MEANS FOR RECIPROCATING SAID PISTON.
Claim 2
Independent Claim
164 words
A DEVICE FOR SAMPLING FLUIDS IN A RECEPTACLE COMPRISING A PISTON HOUSING INCLUDING A CLOSED-ENDED TUBULAR PORTION PROJECTING THEREFROM, SAID HOUSING BEING ADAPTED TO MATE WITH AN OPENING IN SAID RECEPTACLE SO THAT SAID TUBULAR PORTION PROJECTS THEREINTO, A PISTON SLIDABLY SUPPORTED WITHIN SAID HOUSING HAVING ADVANCED AND RETRACTED POSITIONS AND COOPERATING WITH THE INTERIOR OF SAID TUBULAR PORTION TO FORM A FIRST CYLINDER-LIKE ENCLOSURE, SAID PISTON AND PISTON HOUSING BEING SHAPED TO FORM A SECOND ENCLOSURE EXTENDING THEREBETWEEN FOR AN AXIAL DISTANCE SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN SAID ADVANCED AND RETRACTED POSITIONS OF SAID PISTON, A PORT COMMUNICATING SAID FIRST ENCLOSURE AND THE EXTERIOR OF SAID TUBULAR PORTION AT A POINT INTERMEDIATE SAID ADVANCED AND RETRACTED POSITIONS OF THE HEAD OF SAID PISTON, A PASSAGE IN SAID PISTON COMMUNICATING SAID ENCLOSURES, A CHECK-VAVE IN SAID PASSAGE FOR PREVENTING FLOW TOWARD SAID FIRST ENCLOSURE, A SECOND PASSAGE COMMUNICATING SAID SECOND ENCLOSURE AND THE EXTERIOR OF SAID HOUSING, AND MEANS FOR RECIPROCATING 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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |