Patent US3074240A successfully refreshed from Google Patents.
US3074240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming drilled cast-in-place piles
Assignee: Individual
•
Filing: 1960-02-18
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Granted: 1963-01-22
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Expires: 1980-02-18
Abstract
No abstract record available.
Inventors
- 👤 Fairfield H Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:55
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/34; E02D5/38; E02D5/44; E02D5/385
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
A METHOD OF FORMING PILING, CONSISTING OF CASTING A CYLINDRICAL PILE BASE OF CONCRETE PROVIDED WITH A CENTRAL LONGITUDINAL HOLE A PLURALITY OF SMALLER LONGITUDINAL HOLES DISPOSED AROUND THE CENTRAL HOLE, AN AUGER SLOT IN THE TOP FLAT SURFACE OF SAID BASE, AND A SERIES OF THREADS IN THE OUTER CYLINDRICAL SURFACE OF SAID BASE, AND A SERIES OF CHANNELS IN THE BOTTOM FACE OF THE CYLINDER COMMUNICATING WITH THE PLURALITY OF SMALLER LONGITUDINAL HOLES AND THE OUTER SURFACE OF THE PILE BASE AND THE CENTRAL HOLE, THREADING SAID CAST CONCRETE PILE BASE INTO FINAL POSITION BY ROTATING THE BASE CONTANTLY WITH ROTATIONAL FORCES APPLIED IN SAID AUGER SLOT WHILE STEADILY FORCING IT DOWNWARD INTO POSITION AT A CONSTANT RATE, WHEREBY THERE ARE FORMED CRUMBS BY THE SIMULTANEOUS ROTATION AND DOWNWARD FORCING OF SAID BASE, SAID ROTATION CRUSHING SAID CRUMBS AND CAUSING THEM TO FILL AND CLIMB THE SERIES OF THREADS IN THE OUTER CYLINDRICAL SURFACE OF SAID BASE, PLACING A PIPE IN THE CENTRAL HOLE OF THE BASE AND FORCING GROUT THROUGH SAID PIPE, DOWN THROUGH SAID CENTRAL HOLE AND BACK UP THROUGH SAID PLURALITY OF SMALLER HOLES DISPOSED AROUND THE CENTRAL HOLE TO FORM A CASTIN-PLACE CONCRETE BODY ABOVE THE BASE AND INTEGRAL THEREWITH AND SAID FORCING OF GROUT UNDER PRESSURE THROUGH SAID HOLES BONDING THE CRUSHED CRUMBS IN SAID THREADS TO SAID THREADS AND IN FINAL POSITION.
Claim 2
Independent Claim
230 words
A METHOD OF FORMING PILING, CONSISTING OF CASTING A CYLINDRICAL PILE BASE OF CONCRETE PROVIDED WITH A CENTRAL LONGITUDINAL HOLE A PLURALITY OF SMALLER LONGITUDINAL HOLES DISPOSED AROUND THE CENTRAL HOLE, AN AUGER SLOT IN THE TOP FLAT SURFACE OF SAID BASE, AND A SERIES OF THREADS IN THE OUTER CYLINDRICAL SURFACE OF SAID BASE, AND A SERIES OF CHANNELS IN THE BOTTOM FACE OF THE CYLINDER COMMUNICATING WITH THE PLURALITY OF SMALLER LONGITUDINAL HOLES AND THE OUTER SURFACE OF THE PILE BASE AND THE CENTRAL HOLE, THREADING SAID CAST CONCRETE PILE BASE INTO FINAL POSITION BY ROTATING THE BASE CONTANTLY WITH ROTATIONAL FORCES APPLIED IN SAID AUGER SLOT WHILE STEADILY FORCING IT DOWNWARD INTO POSITION AT A CONSTANT RATE, WHEREBY THERE ARE FORMED CRUMBS BY THE SIMULTANEOUS ROTATION AND DOWNWARD FORCING OF SAID BASE, SAID ROTATION CRUSHING SAID CRUMBS AND CAUSING THEM TO FILL AND CLIMB THE SERIES OF THREADS IN THE OUTER CYLINDRICAL SURFACE OF SAID BASE, PLACING A PIPE IN THE CENTRAL HOLE OF THE BASE AND FORCING GROUT THROUGH SAID PIPE, DOWN THROUGH SAID CENTRAL HOLE AND BACK UP THROUGH SAID PLURALITY OF SMALLER HOLES DISPOSED AROUND THE CENTRAL HOLE TO FORM A CASTIN-PLACE CONCRETE BODY ABOVE THE BASE AND INTEGRAL THEREWITH AND SAID FORCING OF GROUT UNDER PRESSURE THROUGH SAID HOLES BONDING THE CRUSHED CRUMBS IN SAID THREADS TO SAID THREADS AND IN FINAL POSITION.
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |