Patent US3309878A successfully refreshed from Google Patents.
US3309878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming piles
Assignee: Construction Techniques Inc
•
Filing: 1964-09-03
•
Granted: 1967-03-21
•
Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Bruce A Lamberton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:07
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/58; E02D5/34; E02D5/38; E02D5/42; E02D5/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A METHOD OF FORMING A ONE-PIECE CONCRETE PILE FORMED IN SITU EXTENDING BELOW THE EARTH''S SURFACE AND ADAPTED TO WITHSTAND UPLIFT FORCES, COMPRISING THE STEPS OF FORMING A SUBSTANTIALLY VERTICAL HOLE IN THE EARTH''S SURFACE WITH AN UPPER OPENING, INSERTING A REINFORCING ROD WITH A BODY PORTION AND A LOWER ANCHOR MEANS INTO SAID HOLE WITH SAID ANCHOR MEANS NEAR THE BOTTOM OF SAID HOLE, SAID ROD HAVING A PROTECTIVE SLEEVE EXTENDING FROM A POSITION NEAR SAID ANCHOR TO A POSITION ABOVE THE UPPER OPENING OF SAID HOLE FOR PREVENTING SAID CONCRETE MIXTURE FROM CONTACTING SAID BODY PORTION OF SAID REINFORCING ROD ALONG A SUBSTANTIAL PORTION OF THE LENGTH THEREOF, FILLING SAID HOLE WITH A PLASTIC, HARDENABLE CONCRETE MIXTURE, CAUSING A HYDRAULIC PRESSURE ON SAID MIXTURE TO FORCE SAID MIXTURE OUTWARDLY INTO SAID EARTH, ALLOWING SAID CONCRETE MIXTURE TO HARDEN TO FORM A CONCRETE PILE HAVING AN UPPER AND A LOWER PORTION, SUPPORTING A ROD RECEIVING MEMBER NEAR THE UPPER PORTION OF SAID CONCRETE PILE, PLACING SAID REINFORCING ROD UNDER TENSION BETWEEN SAID ROD RECEIVING MEMBER AND SAID LOWER ANCHOR MEANS, AND SECURING SAID ROD IN A TENSIONED CONDITION SO THE COMPLETE LENGTH OF SAID CONCRETE PILE BETWEEN SAID UPPER AND LOWER PORTIONS IS COMPRESSED.
Claim 2
Independent Claim
205 words
A METHOD OF FORMING A ONE-PIECE CONCRETE PILE FORMED IN SITU EXTENDING BELOW THE EARTH''S SURFACE AND ADAPTED TO WITHSTAND UPLIFT FORCES, COMPRISING THE STEPS OF FORMING A SUBSTANTIALLY VERTICAL HOLE IN THE EARTH''S SURFACE WITH AN UPPER OPENING, INSERTING A REINFORCING ROD WITH A BODY PORTION AND A LOWER ANCHOR MEANS INTO SAID HOLE WITH SAID ANCHOR MEANS NEAR THE BOTTOM OF SAID HOLE, SAID ROD HAVING A PROTECTIVE SLEEVE EXTENDING FROM A POSITION NEAR SAID ANCHOR TO A POSITION ABOVE THE UPPER OPENING OF SAID HOLE FOR PREVENTING SAID CONCRETE MIXTURE FROM CONTACTING SAID BODY PORTION OF SAID REINFORCING ROD ALONG A SUBSTANTIAL PORTION OF THE LENGTH THEREOF, FILLING SAID HOLE WITH A PLASTIC, HARDENABLE CONCRETE MIXTURE, CAUSING A HYDRAULIC PRESSURE ON SAID MIXTURE TO FORCE SAID MIXTURE OUTWARDLY INTO SAID EARTH, ALLOWING SAID CONCRETE MIXTURE TO HARDEN TO FORM A CONCRETE PILE HAVING AN UPPER AND A LOWER PORTION, SUPPORTING A ROD RECEIVING MEMBER NEAR THE UPPER PORTION OF SAID CONCRETE PILE, PLACING SAID REINFORCING ROD UNDER TENSION BETWEEN SAID ROD RECEIVING MEMBER AND SAID LOWER ANCHOR MEANS, AND SECURING SAID ROD IN A TENSIONED CONDITION SO THE COMPLETE LENGTH OF SAID CONCRETE PILE BETWEEN SAID UPPER AND LOWER PORTIONS IS COMPRESSED.
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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |