Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate
2000-12-12
2002-11-26
Will, Thomas B. (Department: 3671)
Hydraulic and earth engineering
Foundation
Columnar structure
C172S025000, C175S021000, C175S064000, C405S241000, C405S268000, C405S269000
Reexamination Certificate
active
06485234
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a tool and apparatus incorporating the same and a method for constructing cylindrical columns utilizing the tool and forming a wall using the columns.
Columns have heretofore been formed typically by driving a steel casing down into the ground to the appropriate depth and then drilling out the casing. Thereafter, a reinforcing cage or soldier beam is placed in the steel casing and filled with concrete. Thereafter the steel casing is pulled out and used again. Such a procedure is costly and time consuming. There is therefore a need for a new and improved apparatus and method for reducing the time and expense in providing such columns.
BRIEF SUMMARY OF THE INVENTION
In general, it is an object of the present invention to provide a tool and apparatus incorporating the same and a method for constructing cylindrical columns and a wall utilizing the cylindrical columns.
Another object of the invention is to provide a tool and apparatus of the above character which can be utilized for constructing cylindrical columns having a central core of reduced solidifying material.
Another object of the invention is to provide a tool and apparatus of the above character and a method in which the central core of the column can be readily drilled out.
Another object of the invention is to provide a tool, apparatus and method of the above character in which the drilled-out column serves as a form for installing reinforced concrete columns.
Another object of the invention is to provide a tool, apparatus and method of the above character which substantially reduces the cost of the solidifying material utilized in providing a soil mix.
Another object of the invention is to provide a tool, apparatus and method of the above character in which the central core of the soil mix column can be readily drilled out to provide a form for a reinforced concrete column.
Another object of the invention is to provide a tool, apparatus and method of the above character in which reinforced concrete columns can be constructed to form a wall.
Additional objects and features of the invention will appear from the following description in which the preferred embodiment is set forth in conjunction with the accompanying drawings.
REFERENCES:
patent: 3436921 (1969-04-01), Gauntt, Jr. et al.
patent: 3499293 (1970-03-01), Kato
patent: 5304016 (1994-04-01), Kunito
patent: 5327980 (1994-07-01), Smet
patent: 5396964 (1995-03-01), Shellhorn et al.
patent: 5411353 (1995-05-01), Taki
patent: 5484233 (1996-01-01), Kunito
patent: 5570975 (1996-11-01), Reinert, Sr.
patent: 5645376 (1997-07-01), Taki
patent: 6183166 (2001-02-01), Schellhorn
patent: 6241426 (2001-06-01), Schellhorn
Condon-Johnson & Associates, Inc.
Dorsey & Whitney LLP
Mayo Tara L.
Will Thomas B.
LandOfFree
Apparatus and method for making cylindrical columns does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for making cylindrical columns, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for making cylindrical columns will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2992841