Patent US4090496A successfully refreshed from Google Patents.
US4090496A
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US
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Compounds for forming bodies for generating heat from radiant luminous energy, and methods of preparation and applications thereof
Assignee: Ciuile Particuliere Cominda Engr SA
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Filing: 1976-01-08
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Granted: 1978-05-23
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Expires: 1996-01-08
Abstract
Abstract A compound for forming bodies for generating heat from radiant luminous energy consists of a fluid mixture of 30 to 50% by weight of a reticulatable resin and 70 to 50% by weight of an intimately mixed and finely divided charge, 30 to 60% of which by weight consists of an absorbent black charge and 70 to 40% of which by weight consists of a diffusing white charge. The compound may contain up to 25% glass fibers, expressed as a percentage of the weight of the resin. The black charge may include one or more of the following: graphite and the oxides of iron, copper, manganese, nickel and cobalt. The white charge may contain one or more of the following: alkaline earth carbonates and sulphates and the oxides of silicon, beryllium, magnesium, aluminium, zirconium and thorium. The compound is prepared by homogenously mixing the ingredients in a mixing mill at ambient temperature. The heat generating bodies are formed by casting and polymerizing the compound. A solar panel for heating a fluid is formed by casting and polymerizing the compound round a plane nest of tubes. A radiator is formed by casting and polymerizing the compound in contact with a heat source. A device for heating bodies of water such as the contents of swimming pools comprises such bodies exposed to the sun and slightly submerged in the water, either attached to the pool walls or floating on the pool surface. A submersible device can be used for heating water near the pool bottom.
Inventors
- 👤 Gilbert Mallet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:20
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/01; C08K3/013; C08K3/02; C08K3/04; C08K3/24; C08K3/26; C08K3/30; C08K5/00; C08K5/0008; C08K5/0025; C09; C09K; C09K5/00; C09K5/02; C09K5/06; C09K5/066; F; F24; F24S; F24S10/00; F24S10/10; F24S70/00; F24S70/10; F24S70/14; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
140 words
A polymerizable compound suitable for casting or molding bodies for generating heat from radiant luminous energy, particularly but not exclusively from sunlight, comprising a fluid mixture containing 30 to 50% by weight of a transparent resin which can be reticulated by polymerization, and 70 to 50% by weight of an intimate mixture of: (a) a finely divided absorbent black charge constituting 30 to 60% by weight of the mixture and composed of at least one constituent selected from the group consisting of: graphite and the oxides of iron, copper, manganese, nickel and cobalt, and (b) a finely divided diffusing white charge constituting 70 to 40% by weight of the mixture and composed of at least one constituent selected from the group consisting of: the alkaline earth carbonates and sulphates and the oxides of silicon, beryllium, magnesium, aluminum, zirconium and thorium.
Claim 2
Dependent Claim
140 words
A polymerizable compound suitable for casting or molding bodies for generating heat from radiant luminous energy, particularly but not exclusively from sunlight, comprising a fluid mixture containing 30 to 50% by weight of a transparent resin which can be reticulated by polymerization, and 70 to 50% by weight of an intimate mixture of: (a) a finely divided absorbent black charge constituting 30 to 60% by weight of the mixture and composed of at least one constituent selected from the group consisting of: graphite and the oxides of iron, copper, manganese, nickel and cobalt, and (b) a finely divided diffusing white charge constituting 70 to 40% by weight of the mixture and composed of at least one constituent selected from the group consisting of: the alkaline earth carbonates and sulphates and the oxides of silicon, beryllium, magnesium, aluminum, zirconium and thorium.
Claim 3
Dependent Claim
125 words
A body for generating heat from radiant luminous energy, formed of a cast or molded polymerized compound comprising 30 to 50% by weight of a transparent, thermally reticulatable resin and 70 to 50% by weight of an intimate mixture of: (a) a finely divided absorbent black charge constituting 30 to 60% by weight of the mixture and composed of at least one constituent selected from the group comprising graphite and the oxides of iron, copper, manganese, nickel and cobalt; and (b) a finely divided diffusing white charge constituting 10 to 40% by weight of the mixture and composed of at least one constituent selected from the group comprising the alkaline earth carbonates and sulphates and the oxides of silicon, beryllium, magnesium, aluminum, zirconium and therium.
Claim 4
Dependent Claim
125 words
A body for generating heat from radiant luminous energy, formed of a cast or molded polymerized compound comprising 30 to 50% by weight of a transparent, thermally reticulatable resin and 70 to 50% by weight of an intimate mixture of: (a) a finely divided absorbent black charge constituting 30 to 60% by weight of the mixture and composed of at least one constituent selected from the group comprising graphite and the oxides of iron, copper, manganese, nickel and cobalt; and (b) a finely divided diffusing white charge constituting 10 to 40% by weight of the mixture and composed of at least one constituent selected from the group comprising the alkaline earth carbonates and sulphates and the oxides of silicon, beryllium, magnesium, aluminum, zirconium and therium.
Claim 5
Dependent Claim
27 words
A body as set forth in claim 2, further comprising not more than 25% of glass fibres, expressed as a percentage of the weight of the resin.
Claim 6
Dependent Claim
101 words
A body as set forth in claim 2, wherein said black charge contains 1 to 80% by weight powdered graphite with a particle size not exceeding 0.6 microns and 99 to 20% by weight of at least one anhydrous iron oxide with a particle size not exceeding 0.6 microns, and said white charge contains 10 to 15%, expressed as a percentage of the weight of said intimate mixture, of quartz with a particle size not exceeding 3 microns, the remainder of said white charge being an anhydrous double carbonate of calcium and magnesium with a particle size not exceeding 0.6 microns.
Claim 7
Dependent Claim
52 words
A body as set forth in claim 4, wherein said resin is a polyester resin which is polymerisable by adding an appropriate catalyst and which contains 0.2 to 3% of powdered anhydrous cobalt oxide with a particle size not exceeding 0.6 microns, expressed as a percentage of the weight of the resin.
Claim 8
Dependent Claim
73 words
A body as set forth in claim 5, comprising substantially 325 parts by weight of a flexible polyester resin, substantially 3 parts by weight of cobalt oxide, substantially 130 parts by weight of at least one anhydrous iron oxide, substantially 190 parts by weight of graphite, substantially 250 parts by weight of double carbonate of calcuim and magnesium, 90 parts by weight of quartz, and substantially 12 parts by weight of glass fibres.
Claim 9
Dependent Claim
48 words
A body as set forth in claim 2, wherein said resin is an epoxy resin which is polymerisable by raising its temperature and consists of a mixture of a resinous component and a hardener, the proportion of said hardener being limited to ensure that said mixture remains fluid.
Claim 10
Dependent Claim
18 words
A body as claimed in claim 2, with at least part of its surface having a matt finish.
Claim 11
Dependent Claim
61 words
A device for heating a pool of water contained in an open-topped enclosure, comprising a body as claimed in claim 2, wherein said body is of slab-like construction, having an active face adapted to be exposed to the source of radiant energy, and adapted to be at least partly disposed below the normal surface level of such a pool of water.
Claim 12
Dependent Claim
41 words
A device as set forth in claim 9, wherein said slab-like body is adapted to be fixed to an extent in a position substantially horizontally from a wall of such an enclosure, said active face being defined by its upper surface.
Claim 13
Dependent Claim
59 words
A device as set forth in claim 9, further comprising a transparent dome having a peripheral flange sealed watertight to said slab-like body, the sealed unit formed by the body and the dome being floatable for maintaining said active surface substantially horizontal and facing upward and at a small distance below the surface of such a pool of water.
Claim 14
Dependent Claim
135 words
A device as set forth in claim 11, wherein the interior of said dome is divided by a transparent watertight wall substantially parallel to said active surface into a first watertight chamber in contact with said active surface, and a second chamber, inlet orifices communicating with said second chamber and spaced along the dome periphery in the vicinity of said wall, and a hose connected to the top of said dome for introducing compressed air into said second chamber, the volumes of said first and second chambers being so chosen that said device has an average density greater than that of water when said second chamber is filled with water, and an average density less than that of water when said second chamber is emptied of water by compressed air pumped into said second chamber.
Claim 15
Dependent Claim
47 words
A device as set forth in claim 9, in combination with said enclosure wherein the enclosure comprises a ledge at its open end, and wherein said slab-like body is disposed substantially horizontally and along at least part of the inner periphery of said enclosure on said ledge.
Claim 16
Dependent Claim
15 words
A device as set forth in claim 13, wherein said enclosure is a swimming pool.
Claim 17
Dependent Claim
36 words
A solar panel for heating a fluid, comprising a substantially planar tube array for carrying the flow of a fluid, and embedded in said body as claimed in claim 2, said body being of slab-like configuration.
Claim 18
Dependent Claim
26 words
A panel as set forth in claim 15, comprising a thermally insulative enclosure surrounding said plate-like body and having at least one transparent face spaced therefrom.
Claim 19
Independent Claim
176 words
A method of preparing a body for generating heat from radiant luminous energy formed of a polymerized compound, comprising: forming a fluid mixture containing 30 to 50% by weight of a transparent, thermally reticulatable resin and 70 to 50% by weight of an intimate mixture of a finely divided absorbent black charge constituting 30 to 60% by weight of the mixture and composed of at least one constituent selected from the group comprising graphite and the oxides or iron, copper, manganese, nickel and cobalt, and of a finely divided diffusing white charge constituting 70 to 40% by weight of the mixture and composed of at least one constituent selected from the group comprising the alkaline earth carbonates and sulphates and the oxides of silicon, berylium, magnesium, aliminum, zirconium and thorium, wherein the improvement comprises the step of placing successively said reticulatable resin, said black charge and said white charge at ambient temperature into a mixing mill, mixing them homogeneously therein, pouring the homogenized mixture into a mold, and then heating the poured mixture to polymerize it.
Claim 20
Independent Claim
176 words
A method of preparing a body for generating heat from radiant luminous energy formed of a polymerized compound, comprising: forming a fluid mixture containing 30 to 50% by weight of a transparent, thermally reticulatable resin and 70 to 50% by weight of an intimate mixture of a finely divided absorbent black charge constituting 30 to 60% by weight of the mixture and composed of at least one constituent selected from the group comprising graphite and the oxides or iron, copper, manganese, nickel and cobalt, and of a finely divided diffusing white charge constituting 70 to 40% by weight of the mixture and composed of at least one constituent selected from the group comprising the alkaline earth carbonates and sulphates and the oxides of silicon, berylium, magnesium, aliminum, zirconium and thorium, wherein the improvement comprises the step of placing successively said reticulatable resin, said black charge and said white charge at ambient temperature into a mixing mill, mixing them homogeneously therein, pouring the homogenized mixture into a mold, and then heating the poured mixture to polymerize it.
Claim 21
Dependent Claim
35 words
A method as claimed in claim 17, further comprising the step of adding not more than 25% of glass fibers, expressed as a percentage of the weight of the resin, before pouring into said mold.
Claim 22
Dependent Claim
31 words
A method as claimed in claim 17, further comprising washing at least part of the surface of the polymerized body with a suitable solvent to provide it with a matt finish.
Claim 23
Dependent Claim
14 words
A method as claimed in claim 19, wherein said solvent is methyl ethyl ketone.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |