Patent US5777427A successfully refreshed from Google Patents.
Patent US4856341A successfully refreshed from Google Patents.
US4856341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for analysis of failure of material
Assignee: Shell USA Inc
•
Filing: 1987-06-25
•
Granted: 1989-08-15
•
Expires: 2007-06-25
Abstract
Abstract Apparatus is provided for performing mechanical deformation studies of a sample of material to determine mechanical and petrophysical properties of such a sample. The apparatus is useful in conjunction with an imaging (NMR or CAT) apparatus.
Inventors
- 👤 Harold J. Vinegar
- 👤 Scott L. Wellington
- 👤 Jannetje A. de Waal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:03
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/44; G01R33/48; G01R33/4816; G01N; G01N23/00; G01N23/02; G01N23/04; G01N23/046; G01R33/28; G01R33/30; G01N15/00; G01N15/08; G01N15/0806; G01N15/088; G01N2223/00; G01N2223/40; G01N2223/419
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
Apparatus for containing a sample, comprising: outer tubular member having engaging means at each extreme end and an interior opening therethrough, first end member disposed partially in said tubular member and sealingly contacting said interior opening, second end member disposed partially in said tubular member and sealingly contacting said interior opening and having a projection thereon, first and second ring members for releasably engaging said engaging means of said tubular member and fixedly restraining said end members in said tubular member, piston means disposed in said tubular member operating in conjunction with said second end member for providing uniaxial forces on such a sample and having a projection thereon, pressure transmitting member sealingly disposed around such a sample, said projection of said second end member, and said projection of said piston means, means for applying pressure to said pressure transmitting member, and means for moving said piston means.
Claim 2
Dependent Claim
148 words
Apparatus for containing a sample, comprising: outer tubular member having engaging means at each extreme end and an interior opening therethrough, first end member disposed partially in said tubular member and sealingly contacting said interior opening, second end member disposed partially in said tubular member and sealingly contacting said interior opening and having a projection thereon, first and second ring members for releasably engaging said engaging means of said tubular member and fixedly restraining said end members in said tubular member, piston means disposed in said tubular member operating in conjunction with said second end member for providing uniaxial forces on such a sample and having a projection thereon, pressure transmitting member sealingly disposed around such a sample, said projection of said second end member, and said projection of said piston means, means for applying pressure to said pressure transmitting member, and means for moving said piston means.
References Cited (Backward Citations)
SU813186A1
Cited
JPS6093941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-14 | 1993-02-13 | 1993-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-14 | 1997-02-13 | 1997-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-14 | 2001-02-13 | 2001-08-15 | $7700.00 | Window Closed / Lapsed |