US3326003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming ground cut-off wall
Assignee: ING GIOVANNI RODIO AND C SpA
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Filing: 1961-01-19
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Granted: 1967-06-20
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Expires: 1981-01-19
Abstract
No abstract record available.
Inventors
- 👤 Marconi Guglielmo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:53
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD FOR CONSTRUCTING IN THE GROUND A VERTICAL WALL OF LONG LENGTH AND NARROW WIDTH, THE STEPS COMPRISING FORMING A FIRST WALL PANEL SECTION BY DIGGING A TRENCH WITH A HOLLOW PRECUSSION TOOL OF THE SAME WIDTH AS THE WALL BY MOVING THE TOOL IN SUCCESSIVE VERTICAL IMPACT STROKES WHILE MOVING THE TOOL BETWEEN STROKES LONGITUDINALLY BACK AND FORTH ON THE BOTTOM OF THE TRENCH ALONG THE LENGTH OF THE PANEL SECTION TO FORM A TRENCH OF THE WIDTH OF SAID TOOL, SAID TRENCH BEING MAINTAINED WITH VERTICAL SIDES AS THE TRENCH DEEPENS TO A GREAT DEPTH, THE DUG MATERIAL FROM THE TRENCH THROUGH SAID TOOL, CONSTANTLY FILLING THE TRENCH WITH THIXOTROPIC DRILLING MUD AS THE
Claim 2
Independent Claim
117 words
A METHOD FOR CONSTRUCTING IN THE GROUND A VERTICAL WALL OF LONG LENGTH AND NARROW WIDTH, THE STEPS COMPRISING FORMING A FIRST WALL PANEL SECTION BY DIGGING A TRENCH WITH A HOLLOW PRECUSSION TOOL OF THE SAME WIDTH AS THE WALL BY MOVING THE TOOL IN SUCCESSIVE VERTICAL IMPACT STROKES WHILE MOVING THE TOOL BETWEEN STROKES LONGITUDINALLY BACK AND FORTH ON THE BOTTOM OF THE TRENCH ALONG THE LENGTH OF THE PANEL SECTION TO FORM A TRENCH OF THE WIDTH OF SAID TOOL, SAID TRENCH BEING MAINTAINED WITH VERTICAL SIDES AS THE TRENCH DEEPENS TO A GREAT DEPTH, THE DUG MATERIAL FROM THE TRENCH THROUGH SAID TOOL, CONSTANTLY FILLING THE TRENCH WITH THIXOTROPIC DRILLING MUD AS THE
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |