Stock material or miscellaneous articles – Three dimension imitation or 'treated' natural product
Patent
1994-12-14
1997-01-28
Ryan, Patrick
Stock material or miscellaneous articles
Three dimension imitation or 'treated' natural product
428 22, 428 49, 428172, 428173, 428426, 4285422, 4285424, 4285426, 52514, 52612, 5274214, 125 1, 125 12, 264102, 264258, B32B 900
Patent
active
055976271
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a stone product in sheet form suitable for use both outdoors and indoors, e.g. as a facade cladding or a fitting, etc.
Due to their relatively low strength, previously disclosed products of this kind are thick and, as a result, heavy. Also, the stone material is not so flexible as to be capable of withstanding bending and similar effects without fracturing.
U.S. Pat. No. 4,177,789 refers to a method for sawing thin sheets from a block of stone involving the application of a filling material in grooves previously sawn into the stone block and then sawing through the stone block between the filled grooves. The act of filling a plastic material into the saw grooves scarcely constitutes impregnation of the stone block, although a certain degree of strengthening of the surface of the stone block is achieved.
Danish patent specification 65 991 refers to the existence of pressed sound-insulating fibre sheets containing water-glass.
German patent application 1 057 946 refers to the sealing of pores in stone by the use of water-glass.
German patent application 1 954 787 refers to "Marmorite", which consists of one layer of natural stone and one layer of a substrate.
German patent application 2 258 111 refers to means for protecting parts of buildings against moisture by means of a waterproof silicate barrier.
German patent application 2 344 071 refers to the manufacture of facade panels from asbestos cement involving the use of water-glass as the surface layer.
U.S. Pat. No. 1,966,069 refers to the manufacture of a sound-absorbent brick/tile sheet containing, amongst other things, silicate for the purpose of, amongst other things, increasing its strength.
The main purpose of the present invention is to increase the internal strength and flexibility of each sheet of stone material without the need to use bearers to provide support during the processing of the stone material and also during its subsequent handling and use. This is made possible by the characteristic features indicated in each of the individual patent claims. More specifically, the natural bonding between the stone crystals of the stone is permanently filled and reinforced permanently with an impregnating agent, in conjunction with which the salts in question, which are present in the stone, are bonded, in so doing also preventing the precipitation of the salts with discoloration as a result.
According to the method described in the aforementioned U.S. Pat. No. 4,177,789, the filling material is applied temporarily, depending on the sawing operation to be performed on the stone sheets in question, to form a filling material in the saw grooves in order to provide support during the subsequent division of the Stone block in question between the layers of filling material.
Once division and polishing of each stone sheet has taken place, with the filling material still in position and acting as an effective support for the sheet, the filling material is removed and no longer acts as a reinforcing material for the formed sheet. The stone sheet must instead be consolidated with a surface layer forming a sandwich sheet element, which, amongst other things, involves a complicated procedure and increased expense, and results in the production of "stone products" of great thickness and weight. Plastic is used as the filling material for this purpose.
The principal object of the present invention is thus, in the first place, to produce a stone product in sheet form capable of solving the aforementioned strength problems by simple but effective means and which, as such, is capable of, amongst other things, being manufactured with considerably less thickness than its earlier counterparts and of being used in both outdoor and indoor applications.
Said object is achieved by means of a product according to the present invention, which is characterized essentially in that the presence of an impregnating agent in existing pores, cracks and other cavities which may be present in the stone sheet increases its strength and flexibility.
A s
REFERENCES:
patent: 1966069 (1934-07-01), Klietoth
patent: 4060953 (1977-12-01), Milne
patent: 4177789 (1979-12-01), Marocco
patent: 4640850 (1987-02-01), Marocco
patent: 5028459 (1991-07-01), Lathrop
patent: 5244850 (1993-09-01), Dutton
Bahta Abraham
Ryan Patrick
Techstone i Kinna AB
LandOfFree
Stone product in sheet form, method for its manufacture and appr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stone product in sheet form, method for its manufacture and appr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stone product in sheet form, method for its manufacture and appr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-940417