WO2023196015 - EXPANDABLE JACKETS FOR PRESSUREMETER PROBES FOR MAINTAINING UNIFORM RADIAL EXPANSION OF SOILS FOR DETERMINING STRESS-STRAIN RELATIONSHIP IN SUBSURFACE SOILS, INTERMEDIATE GEOMATERIALS AND ROCK
National phase entry is expected:
Publication Number
WO/2023/196015
Publication Date
12.10.2023
International Application No.
PCT/US2022/050618
International Filing Date
21.11.2022
Title **
[English]
EXPANDABLE JACKETS FOR PRESSUREMETER PROBES FOR MAINTAINING UNIFORM RADIAL EXPANSION OF SOILS FOR DETERMINING STRESS-STRAIN RELATIONSHIP IN SUBSURFACE SOILS, INTERMEDIATE GEOMATERIALS AND ROCK
[French]
CHEMISES EXTENSIBLES POUR SONDES DE PRESSURISATION PERMETTANT DE MAINTENIR UNE EXPANSION RADIALE UNIFORME DE SOLS PERMETTANT DE DÉTERMINER UNE RELATION CONTRAINTE-DÉFORMATION DANS DES SOLS SOUTERRAINS, DES GÉOMATÉRIAUX INTERMÉDIAIRES ET UNE ROCHE
Applicants **
GUPTA, Ramesh, Chandra
Inventors
GUPTA, Ramesh, Chandra
Priority Data
17/714,368
06.04.2022
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Natural Person
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| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2032 | |
| EPO | Filing, Examination, Granting | 6578 | |
| Japan | Filing, Examination, Granting | 1998 | |
| South Korea | Filing, Examination, Granting | 1757 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
17,105
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
Expandable Jacket surrounding a pressuremeter probe prevents barrel shape from forming and maintains cylindrical shape with uniform radial displacement throughout its height, and removes shortcomings of the existing pressuremeters. For the pressuremeter probe to determine horizontal stress versus plane strain relationship in soils and intermediate geomaterials, an expandable jacket comprises one layer of circular arch shaped segmented plates surrounded by flexible bands or rings. The expandable jacket surrounds a membrane which itself surrounds a porous tube with holes. Borehole less than the diameter of the probe is drilled either by pre-boring or self-boring and then the probe is pushed with a cutter ring. For the pressuremeter probe to determine horizontal stress versus plane lateral strain relationship for rocks, the expandable jacket comprises two layers of the circular arch shaped segmented plates surrounded by flexible bands or rings while the first layer surrounds a plurality of pistons, and second layer is surrounded and staggered the first layer.[French]
Une enveloppe extensible entourant une sonde de pressurisation empêche la forme du cylindre de former et de conserver une forme cylindrique avec un déplacement radial uniforme sur toute sa hauteur et élimine les inconvénients des dispositifs de pressurisation existants. Pour que la sonde de pressurisation détermine une relation de contrainte horizontale par rapport à la déformation de plan dans les sols et des géomatériaux intermédiaires, une chemise extensible comprend une couche de plaques segmentées en forme d'arc circulaire entourées par des bandes ou des bagues flexibles. La chemise extensible entoure une membrane, qui elle-même entoure un tube poreux doté de trous. Un trou de forage inférieur au diamètre de la sonde est foré soit par pré-alésage, soit par auto-alésage, puis la sonde est poussée avec une bague de coupe. Pour que la sonde de pressurisation détermine une relation de contrainte horizontale versus déformation latérale de plan pour des roches, la chemise extensible comprend deux couches des plaques segmentées en forme d'arc circulaire entourées par des bandes ou des bagues flexibles tandis que la première couche entoure une pluralité de pistons, et une seconde couche est entourée et décalée par rapport à la première couche.