Patent US3989431A successfully refreshed from Google Patents.
US3989431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pile extruder
Assignee: DIONIAN INDUSTRIES Ltd
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Filing: 1975-02-10
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Granted: 1976-11-02
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Expires: 1995-02-10
Abstract
Abstract A pile extruder machine includes a hopper and a head or mandrel assembly extending from a support, into a moulding chamber assembly. Feed augers are provided on each side of the head or mandrel and these feed augers compress concrete from the hopper into the moulding chamber around the head or mandrel thus forming the pile and the compression moves the machine forwardly so that the pile is extruded rearwardly upon a pallet. A die assembly forms links of coil reinforcing around a coil support tube and the die assembly can be adjusted so that both the pitch and diameter of the lengths of coil can be adjusted. These coils are fed into the concrete mass at the base of the hopper and surround longitudinally extending reinforcing wires. They are drawn into the pile as it is formed and thus reinforce the piles circumferentially around the central aperture formed therein thus giving longitudinal and circumferential reinforcing to the finished pile.
Inventors
- 👤 Ernst Martens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:16
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/08; B28B1/084; B28B1/085; B28B23/00; B28B23/02; B28B23/04; B28B23/06; B28B3/00; B28B3/20; B28B3/22; B28B3/228
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
196 words
A pile extruding machine which is adapted to be mounted for movement along a pair of rails having a pallet therebetween, a plurality of longitudinally extending reinforcing wires supported above said pallet for incorporation into the pile formed by said machine, a source of power and a source of reinforcing wire mounted on said machine; said machine comprising in combination supporting framework, a feed hopper supported by said framework, a packing chamber extending rearwardly of and below said hopper, said hopper communicating with said packing chamber, means adjacent said packing chamber to feed concrete from said hopper into said packing chamber, a mandrel assembly mounted by one end thereof to said framework and extending rearwardly under the base of said hopper and through said packing chamber substantially concentrically therewith, non rotatable coil guide means extending forwardly of the base of said hopper and concentric with said mandrel assembly, a coil forming assembly mounted on said framework and connected to said source of power to form individual lengths of coils of reinforcing wire in a rotatable manner around said coil guide means said individual length of coils being interlocked one with the other by adjacent ends thereof.
Claim 2
Dependent Claim
196 words
A pile extruding machine which is adapted to be mounted for movement along a pair of rails having a pallet therebetween, a plurality of longitudinally extending reinforcing wires supported above said pallet for incorporation into the pile formed by said machine, a source of power and a source of reinforcing wire mounted on said machine; said machine comprising in combination supporting framework, a feed hopper supported by said framework, a packing chamber extending rearwardly of and below said hopper, said hopper communicating with said packing chamber, means adjacent said packing chamber to feed concrete from said hopper into said packing chamber, a mandrel assembly mounted by one end thereof to said framework and extending rearwardly under the base of said hopper and through said packing chamber substantially concentrically therewith, non rotatable coil guide means extending forwardly of the base of said hopper and concentric with said mandrel assembly, a coil forming assembly mounted on said framework and connected to said source of power to form individual lengths of coils of reinforcing wire in a rotatable manner around said coil guide means said individual length of coils being interlocked one with the other by adjacent ends thereof.
Claim 3
Dependent Claim
50 words
The invention according to claim 1 which includes means on said coil forming assembly to adjust the pitch of said lengths of coils of reinforcing wire and further means on said coil forming assembly to adjust the diameter of the coils of said lengths of coils of said reinforcing wire.
Claim 4
Dependent Claim
104 words
The invention according to claim 1 in which said coil forming assembly includes a casing secured to said supporting framework an open ended cylindrical shell forming part of said casing, upper and lower cut out guide portions on one end of said shell, and a die cylinder mounted in said shell, said die cylinder including a die aperature through said die cylinder, said reinforcing wire extending through said upper cut out guide portion, through said die aperature in said die cylinder and through said lower cut out guide portion in said shell, and means to drive said reinforcing wire through said coil forming assembly.
Claim 5
Dependent Claim
158 words
The machine according to claim 2 in which said coil forming assembly includes a casing on said supporting framework, an open ended cylindrical shell forming part of said casing, upper and lower cut out guide portions on one end of said cylindrical shell, a die shell screw threadably engageable within said cylindrical shell for radially adjustment therewith and constituting said means to adjust the diameter of the coils of said lengths of coils of reinforcing wire, a die cylinder mounted for nonrotative adjustable endwise movement within said die shell and constituting said means to adjust the pitch of said lengths of coils of reinforcing wire said die cylinder including a die aperature through said die cylinder, said reinforcing wire extending through said upper cut out guide portion, through said die aperature in said die cylinder and through said lower cut out guide portion in said shell and means to drive said reinforcing wire through said coil forming assembly.
Claim 6
Dependent Claim
51 words
The invention according to claim 1 which includes a pair of side plate assemblies in spaced apart relationship and an upper plate assembly spanning the upper sides of said side plate assemblies, said side plate assemblies and said upper plate assembly, in conjunction with said associated pallet, defining said packing chamber.
Claim 7
Dependent Claim
51 words
The invention according to claim 2 which includes a pair of side plate assemblies in spaced apart relationship and an upper plate assembly spanning the upper sides of said side plate assemblies, said side plate assemblies and said upper plate assembly, in conjunction with said associated pallet, defining said packing chamber.
Claim 8
Dependent Claim
51 words
The invention according to claim 3 which includes a pair of side plate assemblies in spaced apart relationship and an upper plate assembly spanning the upper sides of said side plate assemblies, said side plate assemblies and said upper plate assembly, in conjunction with said associated pallet, defining said packing chamber.
Claim 9
Dependent Claim
51 words
The invention according to claim 4 which includes a pair of side plate assemblies in spaced apart relationship and an upper plate assembly spanning the upper sides of said side plate assemblies, said side plate assemblies and said upper plate assembly, in conjunction with said associated pallet, defining said packing chamber.
Claim 10
Dependent Claim
64 words
The assembly according to claim 5 in which said side plate assembly and said top plate assembly each includes a stationary side plate substantially parallel to the longitudinal axis of said mandrel assembly, a forward adjusting portion pivoted by one end thereof to one end of said side plate, and means to adjust the angle of said adjustable portion relative to said side plate.
Claim 11
Dependent Claim
57 words
The invention according to claim 9 which includes front and rear pulleys adjacent the ends of said side plate assembly and the ends of said top plate assembly, and an endless belt extending around said pulleys and along the surface of said stationary side plates and said forward adjusting portions thereof, and means to drive said belt.
Claim 12
Dependent Claim
56 words
The invention according to claim 1 in which said means to feed concrete from said hopper into said packing chamber includes a pair of feed augers mounted in the base of said hopper and inclining inwardly and rearwardly across said base one upon each side of said mandrel assembly, and means for driving said feed augers.
Claim 13
Dependent Claim
56 words
The invention according to claim 4 in which said means to feed concrete from said hopper into said packing chamber includes a pair of feed augers mounted in the base of said hopper and inclining inwardly and rearwardly across said base one upon each side of said mandrel assembly, and means for driving said feed augers.
Claim 14
Dependent Claim
56 words
The invention according to claim 5 in which said means to feed concrete from said hopper into said packing chamber includes a pair of feed augers mounted in the base of said hopper and inclining inwardly and rearwardly across said base one upon each side of said mandrel assembly, and means for driving said feed augers.
Claim 15
Dependent Claim
56 words
The invention according to claim 9 in which said means to feed concrete from said hopper into said packing chamber includes a pair of feed augers mounted in the base of said hopper and inclining inwardly and rearwardly across said base one upon each side of said mandrel assembly, and means for driving said feed augers.
Claim 16
Dependent Claim
45 words
The invention according to claim 11 which includes means to mount said mandrel assembly by one end thereof for rotation within said coil guide means and a feed auger flight secured to the portion of said mandrel assembly immediately below the base of said hopper.
Claim 17
Dependent Claim
45 words
The invention according to claim 12 which includes means to mount said mandrel assembly by one end thereof for rotation within said coil guide means and a feed auger flight secured to the portion of said mandrel assembly immediately below the base of said hopper.
Claim 18
Dependent Claim
45 words
The invention according to claim 13 which includes means to mount said mandrel assembly by one end thereof for rotation within said coil guide means and a feed auger flight secured to the portion of said mandrel assembly immediately below the base of said hopper.
Claim 19
Dependent Claim
45 words
The invention according to claim 14 which includes means to mount said mandrel assembly by one end thereof for rotation within said coil guide means and a feed auger flight secured to the portion of said mandrel assembly immediately below the base of said hopper.
Claim 20
Dependent Claim
129 words
A coil forming assembly for use with pile extruding machines and the like which include a source of power, coil guide means on said machine and a source of reinforcing wire for said coil forming assembly; said coil forming assembly comprising in combination a casing, an open ended cylindrical shell forming part of said casing, upper and lower cut out guide portions on one end of said shell, and a die cylinder mounted in said shell, said die cylinder including a die aperature through said die cylinder, said reinforcing wire extending through said upper cut out guide portion, through said die aperture in said die cylinder and through said lower cut out guide portion in said shell and means to drive said reinforcing wire through said coil forming assembly.
Claim 21
Dependent Claim
129 words
A coil forming assembly for use with pile extruding machines and the like which include a source of power, coil guide means on said machine and a source of reinforcing wire for said coil forming assembly; said coil forming assembly comprising in combination a casing, an open ended cylindrical shell forming part of said casing, upper and lower cut out guide portions on one end of said shell, and a die cylinder mounted in said shell, said die cylinder including a die aperature through said die cylinder, said reinforcing wire extending through said upper cut out guide portion, through said die aperture in said die cylinder and through said lower cut out guide portion in said shell and means to drive said reinforcing wire through said coil forming assembly.
Claim 22
Dependent Claim
51 words
The coil forming assembly according to claim 19 which includes means on said coil forming assembly to adjust the pitch of said length of coils of reinforcing wire and further means on said coil forming assembly to adjust the diameter of the coils of said lengths of coils of reinforcing wire.
Claim 23
Dependent Claim
72 words
The coil forming assembly according to claim 20 which includes a die shell, screw threadably engageable within said cylindrical shell for radial adjustment therewith and constituting said means to adjust the diameter of the coils of said lengths of coils of reinforcing wire, said die cylinder being mounted for nonrotative endwise movement within said die shell and constituting said means for adjusting the pitch of said lengths of coils of reinforcing wire.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |