Patent US3962879A successfully refreshed from Google Patents.
US3962879A
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Reinforced pile in earth situs and method of producing same
Assignee: Individual
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Filing: 1974-09-16
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Granted: 1976-06-15
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Expires: 1994-09-16
Abstract
Abstract A concrete pile or like concrete column formed in earth situs by rotating a continuous flight auger consisting of one or more sections into the earth to form a cavity of given depth; rotating the auger to remove augered earth from the cavity without removing the auger therefrom, and replacing the removed earth from the auger flights with fluid cement mortar, which hardens to form a column reinforced by the auger resultantly anchored in the same. A plurality of short auger sections may be connected together in succession during drilling to form a cavity of requisite depth by increments when low headroom conditions exist. A portion of the auger or a shaft portion without auger flighting thereon may also protrude above the earth situs for extension through water and the like and be filled with cementitious material which is allowed to harden. The method may also include first filling the auger shaft with the fluid mortar and allowing the same to harden in the shaft with a passage extending therethrough, and supplying more mortar through the passage to fill the cavity to form the column against backing of hardened mortar in the shaft.
Inventors
- 👤 Lee A. Turzillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:05
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/44; E02; E02D; E02D5/00; E02D5/22; E02D5/34; E02D5/36
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
149 words
A method as for forming a concrete pile or like column in an earth situs, comprising the steps of: drilling a first one of a plurality of relatively short sections of a continuous flight auger in screwing direction into the situs, to form a cavity of correspondingly short axial extent; progressively fixedly attaching additional such auger sections to the upper end of the auger to extend the length thereof, and likewise progressively repeating the drilling operation, thereby to extend the cavity depth by increments to requisite full depth thereof; rotating the extended auger in screwing direction within the full-depth cavity to remove the augered earth outwardly therefrom, while retaining the extended auger within the full depth cavity; feeding self-hardenable fluid cementitious material into the cavity to fill the same; and allowing such fluid cementitious material within the cavity to harden as a columnar body with such auger embedded therein.
Claim 2
Independent Claim
149 words
A method as for forming a concrete pile or like column in an earth situs, comprising the steps of: drilling a first one of a plurality of relatively short sections of a continuous flight auger in screwing direction into the situs, to form a cavity of correspondingly short axial extent; progressively fixedly attaching additional such auger sections to the upper end of the auger to extend the length thereof, and likewise progressively repeating the drilling operation, thereby to extend the cavity depth by increments to requisite full depth thereof; rotating the extended auger in screwing direction within the full-depth cavity to remove the augered earth outwardly therefrom, while retaining the extended auger within the full depth cavity; feeding self-hardenable fluid cementitious material into the cavity to fill the same; and allowing such fluid cementitious material within the cavity to harden as a columnar body with such auger embedded therein.
Claim 3
Dependent Claim
58 words
A method as in claim 1, wherein said feeding of cementitious material includes rotation of the retained auger in screwing direction to convey such fluid cementitious material from the bottom of the cavity upwardly in the flighting of the auger, to fill the cavity space surrounding the auger vacated by removal of the angered earth from the flighting.
Claim 4
Dependent Claim
57 words
A method as in claim 2, wherein the step of feeding fluid cementitious material to fill the cavity includes passage of the material through a hollow shaft of the auger, and the cementitious material is allowed to fill the hollow of the shaft and become a part of the columnar body in which the auger is embedded.
Claim 5
Dependent Claim
25 words
A method as in claim 3, including a step of providing reinforcing means within such hollow shaft to be embedded within the cementitious material therein.
Claim 6
Dependent Claim
86 words
A method as in claim 4, wherein the step of feeding fluid cementitious material to fill the cavity includes passage of the material thrugh a hollow shaft of the auger, and the cementitious material is allowed to fill the hollow of the shaft and become a part of the columnar body in which the auger is embedded, such reinforcing means including a series of sections of rod progressively attached one to another in timed relation to the fixed attachment of such short sections of the auger.
Claim 7
Dependent Claim
120 words
A method as in claim 1, wherein subsequent to such removal of the augered earth from the cavity, and prior to feeding the cementitious material into the same, the steps of the method include: positioning a conduit centrally in a hollow shaft of the auger; filling a space between the conduit and such shaft with self-hardenable cementitious material and allowing the same to harden with the conduit retained in place; and thereafter pumping the self-hardenable fluid, cementitious material, while under pressure, through such conduit into the bottom of the cavity, against the backing of the inner end of the auger of the aforesaid step of feeding the fluid material to fill the cavity for such hardening as a columnar body.
Claim 8
Independent Claim
212 words
A method as for forming a concrete pile or like column in an earth situs, comprising the steps of: drilling a continuous flight, hollow-shafted auger in screwing direction into the situs, to produce a body forming cavity of required full depth; rotating the extended auger in screwing direction within the full-depth cavity to remove the augered earth outwardly therefrom, while retaining the extended auger within the full depth cavity; providing a filler of hardened cementitious material in such auger shaft to adjacent the inner end of the same, to have a passage through the same for connection with the inner end of such cavity; feeding fluid self-hardenable cementitious material, under pressure, through such passage, first to build up pressure in the inner end of the cavity against the backing of the inner end of the auger, and then to fill the cavity along the flighting of the rotating auger with application of radial pressure of the fluid material along the body-forming cavity wall, tending to enlarge the same and thereby to increase the skin friction between the ultimately hardened concrete body and the body forming cavity wall; and maintaining the auger stationary while allowing such fluid cementitious material within the cavity to harden as a columnar body, with such auger embedded therein.
Claim 9
Independent Claim
212 words
A method as for forming a concrete pile or like column in an earth situs, comprising the steps of: drilling a continuous flight, hollow-shafted auger in screwing direction into the situs, to produce a body forming cavity of required full depth; rotating the extended auger in screwing direction within the full-depth cavity to remove the augered earth outwardly therefrom, while retaining the extended auger within the full depth cavity; providing a filler of hardened cementitious material in such auger shaft to adjacent the inner end of the same, to have a passage through the same for connection with the inner end of such cavity; feeding fluid self-hardenable cementitious material, under pressure, through such passage, first to build up pressure in the inner end of the cavity against the backing of the inner end of the auger, and then to fill the cavity along the flighting of the rotating auger with application of radial pressure of the fluid material along the body-forming cavity wall, tending to enlarge the same and thereby to increase the skin friction between the ultimately hardened concrete body and the body forming cavity wall; and maintaining the auger stationary while allowing such fluid cementitious material within the cavity to harden as a columnar body, with such auger embedded therein.
Claim 10
Dependent Claim
39 words
A method as in claim 7, wherein such feeding of cementitious material under pressure includes rotation of the retained auger in screwing direction to facilitate controlled movement of such fluid cementitious material upwardly in the flighting of the auger.
Claim 11
Dependent Claim
51 words
A method as in claim 8, wherein the step of feeding fluid cementitious material to fill the cavity includes passage of the material through a hollow conduit positioned within such filler of hardened cementitious material to serve as a reinforcing part of the columnar body in which the auger is embedded.
Claim 12
Dependent Claim
30 words
A method as in claim 9, wherein cementitious material retained in such passage in such hardened filler is allowed to harden therein as a solid part of the columnar body.
Claim 13
Dependent Claim
23 words
A method as in claim 10, wherein a reinforcing member is placed to become anchored in such hardened cementitious material in such passage.
Claim 14
Dependent Claim
63 words
A method as in claim 7, wherein, prior to feeding the cementitious material through such passage to fill such cavity, an elongated rigid element is positioned above a closure member removably closing the inner end of such passage, and wherein such element is forcibly operated to remove such closure member and permit such feeding of the body-forming, fluid material into such body-forming cavity.
Claim 15
Dependent Claim
85 words
A method as in claim 7, wherein, prior to feeding the cementitious material through such passage to fill such cavity, and elongated rigid element is positioned above a closure member removably closing the inner end of such passage, and wherein such element is forcibly operated to remove such closure member and permit such feeding of the body-forming, fluid material into such body-forming cavity; such rigid element being retained positioned in such passage to be anchored therein by hardening of fluid material retained in the passage.
Claim 16
Independent Claim
107 words
A method as for forming a concrete pile or like column in an earth situs, comprising the steps of: drilling a continuous flight auger in screwing direction into the situs to form a cavity of requisite depth; rotating the auger in a screwing direction within the cavity to remove the augered earth outwardly therefrom, while retaining the auger against axial movement within the cavity, and replacing the cavity space vacated by the upward removal of augered earth from at least the lowermost auger flighting with a self-hardenable fluid cementitious material; and allowing such fluid cementitious material to harden as a columnar body with such auger embedded therein.
Claim 17
Independent Claim
107 words
A method as for forming a concrete pile or like column in an earth situs, comprising the steps of: drilling a continuous flight auger in screwing direction into the situs to form a cavity of requisite depth; rotating the auger in a screwing direction within the cavity to remove the augered earth outwardly therefrom, while retaining the auger against axial movement within the cavity, and replacing the cavity space vacated by the upward removal of augered earth from at least the lowermost auger flighting with a self-hardenable fluid cementitious material; and allowing such fluid cementitious material to harden as a columnar body with such auger embedded therein.
Claim 18
Dependent Claim
53 words
A method as in claim 14, wherein such cementitious material is fed through a hollow shaft of the auger into the bottom of the cavity and is conveyed upwardly in the flighting of the auger to fill the cavity space surrounding the auger vacated by removal of the augered earth from such flighting.
Claim 19
Dependent Claim
44 words
A method as in claim 15, wherein at least the lower portion of the hollow shaft of the auger is filled with such cementitious material which is allowed to harden and become a part of the columnar body in which the auger is embedded.
Claim 20
Dependent Claim
55 words
A method as in claim 14, wherein a portion of the auger protrudes above the earth situs after drilling a cavity of the requisite depth, and such auger includes a hollow shaft which is filled with such cementitious material extending above the earth situs and allowed to harden as a columnar body within such auger.
Claim 21
Dependent Claim
38 words
A method as in claim 14, wherein such auger consists of a plurality of relatively short auger sections which are connected together in succession during drilling to form the cavity by increments to the requisite full depth thereof.
Claim 22
Dependent Claim
57 words
A method as in claim 14, wherein such auger includes a hollow shaft portion without flighting thereon extending from the upper end of the auger above the earth situs, such hollow shaft portion being at least partially filled with such cementitious material which has been allowed to harden as a columnar body within such hollow shaft portion.
Claim 23
Dependent Claim
33 words
A method as in claim 19, wherein such hollow shaft portion extends through a water body, and such auger is embedded in the earth situs below the mud line of such water body.
Claim 24
Dependent Claim
79 words
A concrete pile or like column in an earth situs comprising a continuous flight hollow shaft auger having at least a portion thereof embedded in an earth situs, the lower flighting of such auger being free of augered earth and surrounded by hardened cementitious material, and the lower portion of said hollow shaft of said auger also being filled with hardened cementitious material to provide a columnar body with at least the lower portion of said auger embedded therein.
Claim 25
Dependent Claim
79 words
A concrete pile or like column in an earth situs comprising a continuous flight hollow shaft auger having at least a portion thereof embedded in an earth situs, the lower flighting of such auger being free of augered earth and surrounded by hardened cementitious material, and the lower portion of said hollow shaft of said auger also being filled with hardened cementitious material to provide a columnar body with at least the lower portion of said auger embedded therein.
Claim 26
Dependent Claim
42 words
A concrete pile or like column as in claim 21 wherein a portion of said auger protrudes above the earth situs, and the hollow shaft of said auger is filled with such hardened cementitious material to a level above the earth situs.
Claim 27
Dependent Claim
74 words
A concrete pile or like column as in claim 21 wherein said auger includes a hollow shaft portion without flighting extending from the upper end of said auger above the earth situs, said hollow shaft portion being at least partially filled with hardened cementitious material to a level above the earth situs, said hollow shaft portion extending through a water body, and said auger being embedded below the mud line of such water body.
Claim 28
Dependent Claim
25 words
A concrete pile or like column as in claim 22 wherein a portion of said auger protruding above the earth situs is without flighting thereon.
Claim 29
Dependent Claim
25 words
A concrete pile or like column as in claim 21 wherein rigid reinforcing means is embedded within the hardened cementitious material in said hollow shaft.
Claim 30
Dependent Claim
42 words
A concrete pile or like column as in claim 21 further comprising a conduit disposed centrally within said hollow shaft of said auger, the space between said conduit and shaft being filled with hardened cementitious material with said conduit retained in place.
Claim 31
Dependent Claim
35 words
A concrete pile or like column as in claim 26 wherein said conduit is at least partially filled with hardened cementitious material, and reinforcing means is embedded within such hardened cementitious material within said conduit.
References Cited (Backward Citations)
US3091090A
Cited
US3608317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |