Patent US3680644A successfully refreshed from Google Patents.
US3680644A
Expired / Lapsed
US
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Pile driving system and apparatus
Assignee: Santa Fe International Corp
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Filing: 1970-12-28
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Granted: 1972-08-01
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Expires: 1990-12-28
Abstract
Abstract A system for driving piles by a succession of blows struck from above by a hammer element wherein a driving head assembly transfers the blows to the upper end of a hollow elongated pile. The hollow pile entraps a water column beneath the head and means are formed in the head for transmitting portions of the water column via the head in response to blows struck upon the head. A cushion of entrapped gas is disposed between the head and column of liquid to momentarily absorb reactive forces derived from the column of water.
Inventors
- 👤 Samuel Clifford Doughty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:29
CPC Classifications
E; E02; E02D; E02D7/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
In a system for driving an open hollow pile by a succession of blows applied by a hammer from an end of the pile with the pile in a body of liquid subject to entrapment of a column of the liquid within the pile, a driving head disposed in blowtransferring relation to the end of the pile, said driving head including an anvil portion adapted to be struck by the hammer to move the pile toward the liquid column, and means capturing a cushion of gas between said anvil and the column of liquid to absorb reactive forces derived from the column of liquid.
Claim 2
Dependent Claim
104 words
In a system for driving an open hollow pile by a succession of blows applied by a hammer from an end of the pile with the pile in a body of liquid subject to entrapment of a column of the liquid within the pile, a driving head disposed in blowtransferring relation to the end of the pile, said driving head including an anvil portion adapted to be struck by the hammer to move the pile toward the liquid column, and means capturing a cushion of gas between said anvil and the column of liquid to absorb reactive forces derived from the column of liquid.
Claim 3
Dependent Claim
34 words
In a system according to claim 1 wherein the last named means comprises a compliant bladder filled with a compressible gas and interposed between said head and said column in exposure to said column.
Claim 4
Dependent Claim
36 words
In a system according to claim 1 further including flow passages between the last named means and said column of liquid for venting said column of liquid therethrough in response to blows struck by the hammer.
Claim 5
Dependent Claim
108 words
A pile construction comprising an elongated, rigid, hollow member, open to receive a column of water therein, and adapted to be driven in an upstanding orientation by a succession of driving blows applied at the upper end thereof, a closure formed at the upper end of said member to entrap a cushion of air therein when lowering said member into a body of water for driving, openings formed to vent said column of water from within said member in response to compression derived from the driving blows, said cushion serving to momentarily absorb reactive forces of said column of water to permit the openings to vent said column.
Claim 6
Dependent Claim
108 words
A pile construction comprising an elongated, rigid, hollow member, open to receive a column of water therein, and adapted to be driven in an upstanding orientation by a succession of driving blows applied at the upper end thereof, a closure formed at the upper end of said member to entrap a cushion of air therein when lowering said member into a body of water for driving, openings formed to vent said column of water from within said member in response to compression derived from the driving blows, said cushion serving to momentarily absorb reactive forces of said column of water to permit the openings to vent said column.
Claim 7
Dependent Claim
93 words
An open, hollow pile of a type to be driven in a body of water, subjEct to entrapment of a column of the water within the pile, by a succession of blows applied from an end of the pile, 96 a driving head for transmitting the blows to said end of the pile, said driving head including an anvil portion for transmitting the blows to move the pile toward the water column, and means for venting entrapped portions of the liquid of the column from within the pile in response to the blows.
Claim 8
Dependent Claim
93 words
An open, hollow pile of a type to be driven in a body of water, subjEct to entrapment of a column of the water within the pile, by a succession of blows applied from an end of the pile, 96 a driving head for transmitting the blows to said end of the pile, said driving head including an anvil portion for transmitting the blows to move the pile toward the water column, and means for venting entrapped portions of the liquid of the column from within the pile in response to the blows.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |