Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – With a member in the nature of a rotation preventing key...
Reexamination Certificate
2001-07-30
2002-09-24
Morano, S. Joseph (Department: 3617)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
With a member in the nature of a rotation preventing key...
C238S310000, C238S377000
Reexamination Certificate
active
06454505
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to anchor devices, implements, or assemblies which are adapted to be used in connection with the securing or fixation of objects or articles to concrete substrates or substructures, and more particularly to a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation.
BACKGROUND OF THE INVENTION
Wooden ties are conventionally secured to underlying railroad or subway concrete substrates or substructures in accordance with any one of several different well-known techniques, systems, or assemblies. In accordance with one well-known technique, system, or assembly, reinforcing bars are inserted within side portions of the wooden ties, and the wooden ties are then partially immersed or embedded within a freshly poured concrete foundation substrate or substructure. Accordingly, subsequent to the curing or setting of the concrete substrate or substructure, and as a result of the disposition of the reinforcing bars within the set or cured concrete, the wooden ties are now firmly secured within the concrete substrate or substructure. Unfortunately, however, over time, the wooden ties are subjected to various operational and environmental factors which tend to result in the structural deterioration of the wooden ties necessitating their replacement.
For example, the wooden ties are often subjected to large operational loads and structural vibrations. In addition, the ties are also periodically exposed to water and toxic chemicals which tend to cause the ties to rot or otherwise decay. As has therefore been noted, the wooden ties tend to structurally deteriorate in view of being exposed to such operational and environmental factors thereby necessitating their replacement in order to maintain the structural integrity of the rail system supported by means of such underlying wooden ties. However, as a result of the aforenoted embedded disposition of the wooden ties within the cured or set concrete substrate or substructure, particularly by means of the operatively associated reinforcing bars, when the structurally deteriorated wooden ties are in fact to be replaced, it is necessary to break up or partially destroy the concrete substrate or substructure in order to in effect gain access to the wooden ties and therefore be able to remove or extract the damaged or deteriorated wooden ties from the concrete substrate or substructure. Not only are such procedures tedious and time-consuming, but in addition, such procedures are effectively wasteful of resources in that the original concrete substrate or substructure must firstly be partially destroyed, and then, secondly, the concrete substrate or substructure must, in effect, be subsequently repaired by embedding or immersing the new replacement wooden ties within a freshly poured section of the concrete substrate or substructure foundation.
In accordance with another well-known technique, system, or assembly for conventionally securing wooden ties to underlying railroad or subway concrete substrates or substructures, a plurality of expansion anchors are operatively associated with the wooden ties and inserted within fastener bore holes suitably formed at predetermined locations within the concrete substrate or substructure. However, it has been experienced that, again, over the course of time, and as a result of such expansion anchor fasteners being subjected to the aforenoted large operational loads and structural vibrations inherently attendant the operation of the railroad or subway systems, the expansion anchor fasteners tend to work themselves loose with respect to their associated bore holes defined within the concrete substrate or substructure thereby adversely affecting the structural integrity of the wooden ties and the overlying rail system.
A need therefore exists in the art for a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation.
OBJECTS OF THE INVENTION
Accordingly, it is an object of the present invention to provide a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation.
Another object of the present invention is to provide a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation, and which effectively overcomes the various operational disadvantages and drawbacks characteristic of the PRIOR ART systems.
An additional object of the present invention is to provide a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation, and which readily, easily, and simply enables the replacement of the wooden ties, as necessary, without requiring the partial destruction of the underlying concrete substrate or substructure in order to remove or extract the damaged or deteriorated wooden tie members.
A further object of the present invention is to provide a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation, and which can withstand the substantially large operational loads and structural vibrational forces attendant operation of the railroad or subway system such that the wooden ties remain tightly secured to the underlying concrete substrate or substructure.
A last object of the present invention is to provide a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation, and which can be used in connection with a pre-existing concrete substrate or substructure foundation, or alternatively, in connection with a freshly poured concrete substrate or substructure foundation.
SUMMARY OF THE INVENTION
The foregoing and other objectives are achieved in accordance with the teachings and principles of the present invention through the provision of a new and improved anchor assembly, and a method of installing the same, which is especially useful in connection with the anchoring or fixation of wooden railroad or subway ties to an underlying concrete substructure or substrate which forms an integral part of a railroad or subway foundation, wherein the anchor assembly primarily comprises an externally threaded rod member having an internally threaded bore, a cylindrical or tubular sleeve or spacer member, and an externally threaded headed bolt member which is adapted to be axially inserted through the sleeve or spacer member such that the non-headed threaded end of the bolt member is threadedly engaged within the internally threaded bore of the externally threaded rod member. In order to respectively mount an anchor assembly, constructed in accordance with the principles and teachings of the present invention, upon any one of the wooden tie members at any locat
Illinois Tool Works Inc.
Jules Frantz F.
Morano S. Joseph
Schwartz & Weinrieb
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