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US 4,992,914 AGranted
Illuminated stepping stones
OwnerCharles E. Heiss, Lawrence S. Gluckinventors
Life of this patent
Estimating the term…
Abstract
An illuminated stepping stone which is light in weight, of sufficient strength to support a human being of extremely heavy weight, is attractive in appearance and can be manufactured inexpensively. Illumination of the stepping stone is by means of a low voltage source of electricity. Multiple stepping stones are to be connected together and illuminated from a source of electricity.
Claims15
An illuminated stepping stone comprising:
- a base having a side wall enclosing an internal chamber, said base having a top and a bottom, said bottom adapted to be embedded within a supportive surface, said top constructed of a translucent material;
- a light source mounted within said internal chamber;
- and
- support means mounted on said base, said support means located within said internal chamber, said support means being spaced from said side wall, said support means assuming a spaced relationship from said top when said stepping stone in its normal at rest position, said support means physically contacting said top once said top encounters a pressing force of sufficient magnitude.
1 more element
An illuminated stepping stone comprising:
- a base having a side wall enclosing an internal chamber, said base having a top and a bottom, said bottom adapted to be embedded within a supportive surface, said top constructed of a translucent material;
- a light source mounted within said internal chamber;
- support means mounted on said base, said support means located within said internal chamber, said support means being spaced from said side wall, said support means to physically contact said top to prevent excessive deflection of said top which could result in fracture of said top;
- and
- said support means being ring-shaped, said support means being fixed to said base, said support means being concentric with said side wall, said support means enclosing said light source.
2 more elements
An illuminated stepping stone comprising:
- a base having a side wall enclosing an internal chamber, said base having a top and a bottom, said bottom adapted to be embedded within a supportive surface, said top constructed of a translucent material;
- a light source mounted within said internal chamber;
- support means mounted on said base, said support means located within said internal chamber, said support means being spaced from said side wall, said support means to physically contact said top to prevent excessive deflection of said top which could result in fracture of said top;
- said lid being constructed to assume a domed configuration;
- and
- said support means having an upper free edge, said upper free edge being spaced approximately twenty-five thousandths of an inch from said top when said stepping stone is in its said normal at rest position.
3 more elements
An illuminated stepping stone comprising:
- a base having a side wall enclosing an internal chamber, said base having a top and a bottom, said bottom adapted to be embedded within a supportive surface, said top constructed of a translucent material;
- a light source mounted within said internal chamber;
- support means mounted on said base, said support means located within said internal chamber, said support means being spaced from said side wall, said support means to physically contact said top to prevent excessive deflection of said top which could result in fracture of said top;
- and
- said support means having an upper free edge, said upper free edge being spaced approximately twenty-five thousandths of an inch from said top when said stepping stone is in its said normal at rest position.
2 more elements
Dependencies are inferred from the claim text.