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US3748455A Expired / Lapsed US ⏱️ 0.0 years remaining

Display apparatus

Assignee: Morton Metalcraft Co
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Filing: 1971-01-06
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Granted: 1973-07-24
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Expires: 1991-01-06
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Abstract

Abstract A portable display apparatus for exhibiting at a trade show or the like, and embodying a unit in the general form of a foldable light box easily set up without any tools and which may be transported easily from place to place in a station wagon or light truck, including an interchangeable translucent panel to carry transparencies or other visual exhibits. A plurality of units may be connected together for larger exhibits.

Inventors

  • 👤 G Welton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:25
CPC Classifications
G; G09; G09F; G09F13/00

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 102 words
In a portable display unit for disposition in an upright position standing on its lower edges, a main frame, a translucent panel in the front side of said frame, a pair of allochiral doors each hinged at one side to said frame adjacent the outer side thereof to permit said doors to be swung into and out of said frame, brace means to hold said doors at an angle to said main frame to make said unit self-sustaining in an upright position when in use, and illuminating means carried by each said door to light up said panel and an exhibit thereon.
Claim 2
Dependent Claim 102 words
In a portable display unit for disposition in an upright position standing on its lower edges, a main frame, a translucent panel in the front side of said frame, a pair of allochiral doors each hinged at one side to said frame adjacent the outer side thereof to permit said doors to be swung into and out of said frame, brace means to hold said doors at an angle to said main frame to make said unit self-sustaining in an upright position when in use, and illuminating means carried by each said door to light up said panel and an exhibit thereon.
Claim 3
Dependent Claim 36 words
The display unit of claim 1, wherein said illuminating means are upright fluorescent tubes with ballast therefor at the lower end of each said door to add to the stability of the unit when in use.
Claim 4
Dependent Claim 55 words
The display unit of claim 1, including handle means on each end of said frame projecting laterally beyond the frame and shaped for engagement with similar handle means on another unit, whereby when a plurality of closed units are stacked flat one above the other, the handles will maintain a slight space between adjacent units.
Claim 5
Dependent Claim 76 words
The display unit of claim 1, including a subframe carrying said translucent panel pivoted at one end to said main frame to swing into and out of said main frame, upper and lower channels in said subframe to receive opposed marginal portions of said panel, and said panel being bodily flexible sufficiently to permit snapping one of said marginal edges into and out of the respective groove with the opposite marginal portion disposed in its groove.
Claim 6
Dependent Claim 49 words
The desplay unit of claim 4, including an elongated spring member extending along each side of said main frame to bear against the side margins of said translucent panel when said subframe is in said main frame to hold said translucent panel rigid during an exhibition and in transit.
Claim 7
Dependent Claim 15 words
The display unit of claim 5, wherein said spring members have inward light reflecting surfaces.
Claim 8
Dependent Claim 82 words
The display of claim 1, including a pair of generally U-shaped handles on each end of the unit, the outer leg of each handle having an outward bend therein and being longer than the inner leg, whereby when a number of units are stacked one upon the other the outer leg of an upper handle will nest in the bend of a lower handle and the inner leg of an upper handle will rest upon the upper part of a lower handle.
Claim 9
Dependent Claim 56 words
The disply unit of claim 1, wherein said main frame has on each side thereof an outstanding channel portion spaced inwardly from the front edge of the frame for confrontiNg contact with an adjacent unit, and the front face of said channel portion having a row of spaced apertures therealong to receive supporting brackets for shelving.
Claim 10
Dependent Claim 17 words
The display unit of claim 1, including an elongated light reflector at each side of each door.
Claim 11
Dependent Claim 103 words
In a multiple-unit display assembly, a plurality of units connected in edge-to-edge relationship, each unit comprising a main frame having a projecting portion on each side thereof for face-to-face contact with an adjacent unit, said portion having a series of apertures therealong to receive supporting brackets for shelving, a translucent panel in said frame, and closure means pivoted to the rear of said frame, illuminating means carried by said closure means, and the space between adjacent units in front of said projecting portions being so narrow as to be substantially unnoticeable to an observer and yet permit the entrance of thin supporting brackets.
Claim 12
Dependent Claim 103 words
In a multiple-unit display assembly, a plurality of units connected in edge-to-edge relationship, each unit comprising a main frame having a projecting portion on each side thereof for face-to-face contact with an adjacent unit, said portion having a series of apertures therealong to receive supporting brackets for shelving, a translucent panel in said frame, and closure means pivoted to the rear of said frame, illuminating means carried by said closure means, and the space between adjacent units in front of said projecting portions being so narrow as to be substantially unnoticeable to an observer and yet permit the entrance of thin supporting brackets.

References Cited (Backward Citations)

DE470356C Cited
US1950373A Cited
CH183084A Cited
US2567561A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-07-23 1977-01-22 1977-07-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-23 1981-01-22 1981-07-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-23 1985-01-22 1985-07-24 $7700.00 Window Closed / Lapsed

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