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US3558252A Expired / Lapsed US ⏱️ 0.0 years remaining

Radiating element

Assignee: Industrias del Hogar SA
•
Filing: 1968-07-29
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Granted: 1971-01-26
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Expires: 1988-07-29
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Abstract

Abstract A RADIANT ELEMENT PROVIDED WITH A FACE FROM WHICH INFRARED RAYS ARE TO BE EMITTED, FITTED WITH A PLURALITY OF POLYGON-SHAPED CAVITIES, THE SIDE FACES OF WHICH HAVE A PREDETERMINED DEGREE OF INCLINATION CONVERGENT TOWARD THE INTERIOR, THE TOTAL AREA OF THE INNER SIDE SURFACES BEING GREATER THAN THE CROSS-SECTIONAL AREAS OF THE ASSOCIATED CAVITY, SO THAT THE AVAILABLE AREA FROM WHICH INFRARED RAYS CAN BE EMITTED IS THEREBY INCREASED. THE CAVITIES ARE EACH PROVIDED WITH SEVERAL FEEDING DUCTS, THE OUTLETS OF WHICH ARE STAGGERED IN DIFFERENT PLANES WITHIN THE RESPECTIVE CAVITY, TO SUPPLY EACH CAVITY WITH A COMBUSTIBLE GASEOUS FLUID UNDER PRESSURE, SO THAT WHEN UNDERGOING COMBUSTION IN THE RESPECTIVE OUTLETS, THE FLAMES ARE AT DIFFERENT LEVELS FROM THE GENERAL PLANE OF THE FRONT FACE AT WHICH FEEDING FURTHER CONDUITS HAVE THEIR OUTLETS, WHEREBY AN AUTOPILOTING EFFECT OF THE INNER FLAMES TOWARDS THE OUTSIDE FLAMES AND VICE-VERSA IS CREATED, AS A CONSEQUENCE OF WHICH THE ADDITIOIN OF PRIMARY AIR TO THE COMBUSTIBLE MIX IS ENRICHED SO OBTAINING A MORE COMPLETE COMBUSTION AND, THEREFORE, IMPROVED PERFORMANCE, AND AVOIDING POSSIBLE LEAKS AND SMALL EXPLOSIONS OF PORTIONS OF NON-BURNED GAS AT THE OUTLETS OF THE DUCTS.

Inventors

  • 👤 Domingo C Roca

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 08:25
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/125; F23D14/14; F23D14/145; F23D14/148; F23D14/126; F23D2203/00; F23D2203/10; F23D2203/102

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-01-25 1974-07-27 1975-01-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-25 1978-07-27 1979-01-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-25 1982-07-27 1983-01-26 $7700.00 Window Closed / Lapsed

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