Static structures (e.g. – buildings) – Facers; e.g. – modules – mutually bonded by internal settable... – Laterally related modules; e.g. – back-to-back
Reexamination Certificate
2001-12-06
2003-06-10
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Facers; e.g., modules, mutually bonded by internal settable...
Laterally related modules; e.g., back-to-back
C052S425000, C052S426000
Reexamination Certificate
active
06574934
ABSTRACT:
This invention relates to a block forming a dead form work element for a reinforced concrete wall, particularly for the construction of Civil Engineering works such as swimming pools or water tanks, which can be equipped with a liner (watertight inner pocket), since such works must comprise a mechanically-resistant reinforced concrete wall.
Many dead form work manufacturing processes and devices for the building of such works are already known.
Some processes use, for instance, dead form structures along the total height of the wall to be built, juxtaposed and assembled with one another by various means. Such form structures usually tend to be unpractical, their versatility of use is extremely limited, they are very costly, much too bulky for storage and transport purposes, and generally not suitable for the construction of a perfectly watertight continuous concrete wall.
In his prior patents FR 94 11182 and FR 95 01853, the applicant already described panels forming dead form structures for the building of such works. Said panels comprise essentially two surface sheets held together by means of bracing structures regularly distributed and attached between the two sheets, while leaving spaces between them to allow for the passage of the metal reinforcements and the on-site pouring of the concrete. Such panels constitute already quite a significant progress over the prior art, allowing in particular for a great versatility of use and necessitating less concrete. Yet, they do require, for the installation of the various elements of the swimming pool such as water inlet and outlet fittings and other equipment as well as for the installation of the liner, extensive work for the preparation and positioning of these devices on/or through the wall of the work.
In his prior patent FR 98 06382, the applicant also described a panel forming a dead form structure made of elementary blocks formed with two parts that can be assembled, each one having a main face on which bracing elements are integrally fastened on one side thereof, said two parts designed to bear on each other in the assembling position via the free extremities of said bracing elements. These two parts can fit inside each other when their respective position is inverted, so as to minimize bulk during storage or transport.
This invention relates to a block that somehow represents a synthesis of the two prior types of construction, while adding many other advantages, especially as to the ease and security of use, in particular regarding the installation, the sealing and the ease and precision of the setting of all the pool elements and operating pieces of equipments.
To this effect, an elementary block forming dead form structure, in particular for the building of Civil Engineering works, especially swimming pools or water tanks requiring a mechanically-resistant concrete wall, is, during use, in the shape of a rigid block, essentially a rectangular parallelepiped, with a hollow volume between its two opposite main faces to allow for the pouring of the concrete. Said elementary block consists essentially of two parts that can be assembled, each one comprising said main face with, integrally fastened on one side thereof, regularly distributed bracing elements. Said two parts come to bear on each other and to interlock in the assembling position via the free extremities of said bracing elements. According to a characteristic of this invention, said bracing elements are in the shape of a shaft with an essentially cylindrical section and with an occupancy volume of essentially at least 40% of the volume of the block and preferably about at least 45% of this volume.
Advantageously, said two parts of the elementary block are identical, their assembling and interlocking being carried out by complementary organs facing one another when said identical parts are brought together but rotated at 180° relatively to one another, the adjacent elementary blocks interlocking by simply bearing onto one another by means of complementary locking means provided in particular on their edge.
According to an advantageous characteristic of this invention, the bracing elements in the shape of shafts with an essentially cylindrical section are designed with a polygonal section and occupy the major part of the block width. This configuration allows for a better resistance, for a same weight of matter, of the mechanical block consisting of these two interlocked parts and facilitates the connecting-interlocking of these two parts.
According to another characteristic of this invention, each elementary block comprises at its upper edge a recess in the shape of a groove for the hooking of the liner.
Advantageously, in a block forming element of a wall of the casting concrete along the height of the work wall, each said part of the block comprises several said bracing elements, lined up along the height, and a canal capable of housing a seal along the height and the edge of said part, this seal being compressed by the complementary edge in the next adjacent similar block.
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Friedman Carl D.
McDermott Kevin
Rothwell Figg Ernst & Manbeck
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