US3206935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for producing cast-in-place shells and piles
Assignee: Raymond International Inc
•
Filing: 1962-03-01
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Granted: 1965-09-21
•
Expires: 1982-03-01
Abstract
No abstract record available.
Inventors
- 👤 Lindsey J Phares
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:03
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/28; E02D7/30; E02D5/00; E02D5/22; E02D5/34; E02D5/38; E02D5/385; E02D5/44; E02D5/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE METHOD OF FORMING A CAST-IN-PLACE SHELL IN THE EARTH BY MEANS OF A TUBULAR CASING HAVING AN INTERNALLY DISPOSED SEALING RING MEMBER ADJACENT ITS BASE AND A MANDREL DIMENSIONED TO SLIDE THROUGH SAID SEALING RING IN CLOSE FITTING FLUID SEALING RELATIONSHIP THEREWITH, SAID METHOD COMPRISING: DRIVING THE CASING INTO THE EARTH AND THENCE WITHDRAWING THE SAME, BUT WITH THE MANDREL INSERTED PRIOR TO SAID WITHDRAWAL, AND DURING SAID CASING WITHDRAWAL, INJECTING LIQUID CASTING MATERIAL UNDER PRESSURE INTO THE SPACE BELOW THE RING MEMBER, VOIDED BY THE RECEDING CASING AND RING MEMBER, AND UPON COMPLETE WITHDRAWAL OF THE CASING AND HARDENING OF THE CASTING MATERIAL, WITHDRAWING THE MANDREL.
Claim 2
Independent Claim
108 words
THE METHOD OF FORMING A CAST-IN-PLACE SHELL IN THE EARTH BY MEANS OF A TUBULAR CASING HAVING AN INTERNALLY DISPOSED SEALING RING MEMBER ADJACENT ITS BASE AND A MANDREL DIMENSIONED TO SLIDE THROUGH SAID SEALING RING IN CLOSE FITTING FLUID SEALING RELATIONSHIP THEREWITH, SAID METHOD COMPRISING: DRIVING THE CASING INTO THE EARTH AND THENCE WITHDRAWING THE SAME, BUT WITH THE MANDREL INSERTED PRIOR TO SAID WITHDRAWAL, AND DURING SAID CASING WITHDRAWAL, INJECTING LIQUID CASTING MATERIAL UNDER PRESSURE INTO THE SPACE BELOW THE RING MEMBER, VOIDED BY THE RECEDING CASING AND RING MEMBER, AND UPON COMPLETE WITHDRAWAL OF THE CASING AND HARDENING OF THE CASTING MATERIAL, WITHDRAWING THE MANDREL.
References Cited (Backward Citations)
DE257682C
Cited
US890765A
Cited
US947237A
Cited
US2146645A
Cited
US2412185A
Cited
US2649694A
Cited
US3027724A
Cited
GB862703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |