Abstract A graphical display apparatus having an enclosure with a thin opaque cover made up of an outermost sheet of paper bearing a design, to serve as a display face, and an underlying sheet of aluminum foil backed by an aluminum screen. Incandescent lights are mounted within the enclosure to light its interior. Through the use of pointed markers made of transparent plastic, pinpoints of light can be spotted where desired on the display face for any of various purposes. This is accomplished by pushing the markers through the display face, aluminum foil and aluminum screen at desired locations. The markers are exposed to light in the interior of the enclosure as they pierce the aluminum foil, and therefore show up as points of light on the display face. The incandescent lights in the enclosure emit heat, as a result of which the layer of aluminum foil reacts to bring about a tightening and smoothing of the display face. The aluminum screen holds the markers in position after they are pushed through the cover of the enclosure to position them on the display face.
Inventors
👤 William L. Barth
👤 Clifford E. Barth
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-28 13:37
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
204 words
An internally-lighted display apparatus comprising: enclosed housing means having an illumination source therein; a relatively thin, laminar graphic display assembly forming a front cover for the housing means comprising a flexible outer layer of a metal foil impervious to light and a metal screen underlying said outer layer; a plurality of light transmitting markers of clear plastic construction, each having a shank with a piercing tip at one end and an enlarged head at the opposite end; said outer layer being a type of metal foil readily pierceable by light transmitting markers with pointed shanks through which light from the interior of said housing can be transmitted, and said metal screen being of suitable mesh size to receive the shanks of said markers and help hold the latter in place when they are positioned in penetrating relationship therewith; and an outermost sheet, adapted to bear a design and readily penetrable by said markers, fastened in overlying relationship against said outer layer of metal foil as a display face for said apparatus; said illumination source is of a heat emitting character and said metal foil is of a type to stretch and tighten said outermost sheet under the influence of heat from said illumination source.
Claim 2
Dependent Claim
204 words
An internally-lighted display apparatus comprising: enclosed housing means having an illumination source therein; a relatively thin, laminar graphic display assembly forming a front cover for the housing means comprising a flexible outer layer of a metal foil impervious to light and a metal screen underlying said outer layer; a plurality of light transmitting markers of clear plastic construction, each having a shank with a piercing tip at one end and an enlarged head at the opposite end; said outer layer being a type of metal foil readily pierceable by light transmitting markers with pointed shanks through which light from the interior of said housing can be transmitted, and said metal screen being of suitable mesh size to receive the shanks of said markers and help hold the latter in place when they are positioned in penetrating relationship therewith; and an outermost sheet, adapted to bear a design and readily penetrable by said markers, fastened in overlying relationship against said outer layer of metal foil as a display face for said apparatus; said illumination source is of a heat emitting character and said metal foil is of a type to stretch and tighten said outermost sheet under the influence of heat from said illumination source.
Claim 3
Dependent Claim
24 words
An internally-lighted display apparatus in accordance with claim 1 in which said metal foil is aluminum foil and said metal screen is aluminum screen.
Claim 4
Dependent Claim
21 words
An internally-lighted display apparatus in accordance with claim 2 in which said heat emitting illumination source comprises incandescent light bulb means.
Claim 5
Dependent Claim
20 words
An internally-lighted display apparatus in accordance with claim 2 in which said heat emitting illumination source comprises fluorescent lighting means.
Claim 6
Dependent Claim
18 words
An internally-lighted display apparatus in accordance with claim 3 in which said outermost sheet is a paper sheet.
Claim 7
Dependent Claim
18 words
An internally-lighted display apparatus in accordance with claim 5 in which said paper sheet bears a map design.