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US3699697A Expired / Lapsed US ⏱️ 0.0 years remaining

Illuminating display for simulating a fire

Assignee: United Gas Industries Ltd
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Filing: 1970-01-19
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Granted: 1972-10-24
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Expires: 1990-01-19
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Abstract

Abstract The effect of a wood or similar fire in a fireplace is simulated by the combination of an incandescent light bulb situated to illuminate discrete and separate areas of a rotatable blade or paddle assembly. The blade or paddle assembly is rotated and located behind the incandescent light source and both are enclosed within a shell having the shape, configuration and appearance of a bed of coals, a log fire or the like. The incandescent source or sources are mounted behind opaque portions of the shell and the blade or paddle assembly is rotated and is so constructed as to effect reflection of the incandescent source in such fashion that the reflected light on the interior of the shell moves upwardly and gives the appearance of flickering, thereby to simulate flames.

Inventors

  • 👤 Claude Arthur Painton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 10:26
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/002; F24C7/004; F21; F21S; F21S10/00; F21S10/04; F24C3/00; F24C3/002; F24C3/006; F21W; F21W2131/00; F21W2131/40; F21W2131/406

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 328 words
A simulated fire assembly comprising, in combination, a stationery shell having substantially opaque portions simulating combustible fuel and having other portions which are translucent for the transmission of light therethrough, a light source disposed beneath said stationery shell behind one of said opaque portions to illuminate said shell steadily from below to simulate a glowing fire, an elongate, generally horizontally disposed light reflecting device disposed behind said light source beneath said shell, means for rotating said light reflecting device about a centrally disposed generally horizontal axis thereof, said light reflecting device comprising a series of longitudinally extending vane assemblies projecting outwardly of said axis and disposed in circumferentially spaced relation to each other, each vane assembly presenting a series of discrete, geometrically symmetrical and series-wise geometrically similar longitudinally spaced triangular reflecting portions, the said series of triangular portions defining a series of V-shaped gaps between members thereof, the reflecting surfaces of said portions being smooth and specularly reflecting, the triangular reflecting portions of successive vane assemblies being staggered with respect to each other and the included angle between successive vane assemblies being less than 90*, whereby light may be reflected simultaneously onto the interior of the shell by anyone vane assembly and by the preceding vane assembly by the passage of light through the gaps between the reflecting portions of said any one vane assembly, said other portions of the shell through which light may be transmitted being at varying angular orientations with respect to said light source, whereby movement of reflected light thereacross due to rotation of said reflecting device is different for different one of said other portions, and said reflecting device including a shaft defining said axis, at least one sleeve on said shaft and having at least one line of radially projecting pins thereon, a generally triangular blade held by said line of pins having a base approximately twice as long as said sleeve and overlapping in both directions the sides of said sleeve.
Claim 2
Dependent Claim 328 words
A simulated fire assembly comprising, in combination, a stationery shell having substantially opaque portions simulating combustible fuel and having other portions which are translucent for the transmission of light therethrough, a light source disposed beneath said stationery shell behind one of said opaque portions to illuminate said shell steadily from below to simulate a glowing fire, an elongate, generally horizontally disposed light reflecting device disposed behind said light source beneath said shell, means for rotating said light reflecting device about a centrally disposed generally horizontal axis thereof, said light reflecting device comprising a series of longitudinally extending vane assemblies projecting outwardly of said axis and disposed in circumferentially spaced relation to each other, each vane assembly presenting a series of discrete, geometrically symmetrical and series-wise geometrically similar longitudinally spaced triangular reflecting portions, the said series of triangular portions defining a series of V-shaped gaps between members thereof, the reflecting surfaces of said portions being smooth and specularly reflecting, the triangular reflecting portions of successive vane assemblies being staggered with respect to each other and the included angle between successive vane assemblies being less than 90*, whereby light may be reflected simultaneously onto the interior of the shell by anyone vane assembly and by the preceding vane assembly by the passage of light through the gaps between the reflecting portions of said any one vane assembly, said other portions of the shell through which light may be transmitted being at varying angular orientations with respect to said light source, whereby movement of reflected light thereacross due to rotation of said reflecting device is different for different one of said other portions, and said reflecting device including a shaft defining said axis, at least one sleeve on said shaft and having at least one line of radially projecting pins thereon, a generally triangular blade held by said line of pins having a base approximately twice as long as said sleeve and overlapping in both directions the sides of said sleeve.
Claim 3
Dependent Claim 46 words
A simulated fire assembly as defined in claim 1 comprising a plurality of said sleeves with a lIne of pins on each sleeve, the lines of pins of every other sleeve being in substantial alignment so that the respective blades held thereby form a vane assembly.
Claim 4
Dependent Claim 42 words
A simulated fire assembly as defined in claim 2 wherein there are three lines of pins on each sleeve whereby every other of the sleeves support blades defining three vane assemblies while the remaining sleeves support blades defining three further vane assemblies.

References Cited (Backward Citations)

GB314649A Cited
GB392694A Cited
GB405528A Cited
GB450941A Cited
US2684244A Cited
US2984032A Cited
US3526984A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-24 1976-04-24 1976-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-24 1980-04-24 1980-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-24 1984-04-24 1984-10-24 $7700.00 Window Closed / Lapsed

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