초록 ▼

A portable information marker having a tetrahedron stand joined to a base supported on a surface. The stand has a top wall releasably accommodating an information unit. The information unit and top wall have interlocking slot and ear structures allowing the information unit to be removed from the to

A portable information marker having a tetrahedron stand joined to a base supported on a surface. The stand has a top wall releasably accommodating an information unit. The information unit and top wall have interlocking slot and ear structures allowing the information unit to be removed from the top wall and replaced with an alternate information unit. The alternate information unit can be a flashing light unit.

대표청구항 ▼

A communication apparatus comprising: a stand adapted to be located on a support, said stand having a base, upright side walls secured to the base, and a top wall secured to the side walls, said top wall having a generally horizontal flat top surface and a bottom surface having an annular shoulder,

A communication apparatus comprising: a stand adapted to be located on a support, said stand having a base, upright side walls secured to the base, and a top wall secured to the side walls, said top wall having a generally horizontal flat top surface and a bottom surface having an annular shoulder, information means to provide visual information, said top wall and information means having cooperating means mounting the information means on the top wall and allowing the information means to be removed from the top wall, said cooperating means comprising a circular hole and at least one outwardly directed slot open to the hole in said top wall, said top wall having a circular edge forming said hole, and said information means having an outwardly directed annlar flange having a flat bottom surface located in surface engagement with the top surface of the top wall, a cylindrical body mounted on the flange and projected therefrom, said flange having a top surface, a plurality of upwardly directed ribs joined to the top surface of the flange and the body and at least one ear joined to and projected outwardly from said body, said body having an outside cylindrical surface located closely adjacent the circular edge forming said hole whereby the body can be rotated relative to said top wall, said ear spaced below said flange, said body extended through said hole, and said ear extended through said slot and engageable with said annular shoulder of the bottom surface of the top wall on rotation of said body to retain the bottom surface of the flange in flat surface engagement with the top surface of the top wall thereby mounting the information means on said top wall, said base has an outwardly directed shoulder, said shoulder having an outer peripheral edge and a bottom surface, a downwardly projected base flange joined to said peripheral edge, and ribs joined to the bottom surface of the shoulder and base flange providing pockets for accommodating weight means, said side walls having lower portions located inwardly of said base flange with said pockets located between said lower portions and said base flange.