US3080005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sidewall sampler
Assignee: Dresser Industries Inc
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Filing: 1958-06-06
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Granted: 1963-03-05
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Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
- 👤 Forrest V Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:28
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/02; E21B49/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
APPARATUS FOR TAKING SIDEWALL SAMPLES FROM FLUIDFILLED WELL BOREHOLES COMPRISING: A HEAD MEMBER; A DOWNWARDLY EXTENDING TUBULAR UPPER BODY MEMBER CONNECTED TO SAID HEAD MEMBER; A DOWNWARDLY EXTENDING TIE ROD CONNECTED AT ITS UPPER END TO SAID HEAD MEMBER; A BULL PLUG CONNECTED TO THE LOWER END OF SAID TIE ROD; AN UPWARDLY EXTENDING TUBULAR LOWER BODY MEMBER CONNECTED TO SAID BULL PLUG; A TUBULAR HOUSING INTERCONNECTING THE LOWER END OF SAID UPPER BODY MEMBER AND THE UPPER END OF SAID LOWER BODY MEMBER; AN UPPER SHAPED CHARGE UNIT WITHIN SAID HOUSING ADAPTED TO FORM WHEN DETONATED A DOWNWARDLY DIVERGING CONE OF CUTTING GASES PENETRATIVE OF SAID HOUSING MEMBER; A LOWER SHAPED CHARGE UNIT WITHIN SAID HOUSING ADAPTED TO FORM WHEN DETONATED AN UPWARDLY DIVERGING CONE OF CUTTING GASES PENETRATIVE OF SAID HOUSING; AND MEANS OPERABLE FROM OUTSIDE SAID BOREHOLE FOR DETONATING SAID UPPER AND LOWER SHAPED CHARGE UNITS SIMULTANEOUSLY.
Claim 2
Dependent Claim
150 words
APPARATUS FOR TAKING SIDEWALL SAMPLES FROM FLUIDFILLED WELL BOREHOLES COMPRISING: A HEAD MEMBER; A DOWNWARDLY EXTENDING TUBULAR UPPER BODY MEMBER CONNECTED TO SAID HEAD MEMBER; A DOWNWARDLY EXTENDING TIE ROD CONNECTED AT ITS UPPER END TO SAID HEAD MEMBER; A BULL PLUG CONNECTED TO THE LOWER END OF SAID TIE ROD; AN UPWARDLY EXTENDING TUBULAR LOWER BODY MEMBER CONNECTED TO SAID BULL PLUG; A TUBULAR HOUSING INTERCONNECTING THE LOWER END OF SAID UPPER BODY MEMBER AND THE UPPER END OF SAID LOWER BODY MEMBER; AN UPPER SHAPED CHARGE UNIT WITHIN SAID HOUSING ADAPTED TO FORM WHEN DETONATED A DOWNWARDLY DIVERGING CONE OF CUTTING GASES PENETRATIVE OF SAID HOUSING MEMBER; A LOWER SHAPED CHARGE UNIT WITHIN SAID HOUSING ADAPTED TO FORM WHEN DETONATED AN UPWARDLY DIVERGING CONE OF CUTTING GASES PENETRATIVE OF SAID HOUSING; AND MEANS OPERABLE FROM OUTSIDE SAID BOREHOLE FOR DETONATING SAID UPPER AND LOWER SHAPED CHARGE UNITS SIMULTANEOUSLY.
References Cited (Backward Citations)
US2587243A
Cited
US2587244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |