Patent US3224307A successfully refreshed from Google Patents.
Patent US3688014A successfully refreshed from Google Patents.
US3688014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for driving a rod or a pipe, more particularly an earth electrode, into the ground
Assignee: Individual
•
Filing: 1970-04-06
•
Granted: 1972-08-29
•
Expires: 1990-04-06
Abstract
Abstract An earth electrode assembly which is driven into the earth. The electrode comprises an elongated section and a tip portion which is rotatably mounted on the elongated section. The tip portion has blades which rotate the tip around its axis as it is driven into the ground.
Inventors
- 👤 Gijsbert Versteeg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:10
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/66
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
114 words
An earth electrode assembly adapted to be driven into the ground, which comprises: an elongate, cylindrical electrode provided with a cylindrical tip portion at one extremity thereof, said tip portion including longitudinally projecting blade means for easily penetrating the ground and longitudinally extending flute means for imparting rotary motion to said tip portion as same is axially penetrated into the ground, said tip portion having a longitudinally extending recess therein at the end thereof opposite said blade means, said electrode having a reduced end portion freely rotatably received in said recess and being of a size beyond said reduced end portion which is at least as large in cross section as said tip portion.
Claim 2
Dependent Claim
114 words
An earth electrode assembly adapted to be driven into the ground, which comprises: an elongate, cylindrical electrode provided with a cylindrical tip portion at one extremity thereof, said tip portion including longitudinally projecting blade means for easily penetrating the ground and longitudinally extending flute means for imparting rotary motion to said tip portion as same is axially penetrated into the ground, said tip portion having a longitudinally extending recess therein at the end thereof opposite said blade means, said electrode having a reduced end portion freely rotatably received in said recess and being of a size beyond said reduced end portion which is at least as large in cross section as said tip portion.
Claim 3
Dependent Claim
73 words
The earth electrode assembly as defined in claim 1 wherein said blade means comprises a first blade having a flat cutting edge extending diametrically of said tip portion, and a second blade having a flat cutting edge extending diametrically of said tip portion substantially orthogonally with respect to the cutting edge of said first blade, the cutting edge of said second blade being axially offset from the cutting edge of said first blade.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |