US5174056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system
Assignee: King Products Ltd
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Filing: 1991-01-07
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Granted: 1992-12-29
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Expires: 2011-01-07
Abstract
Abstract A display system comprising a transparent display face, a frame detail surrounding the display face, a concealed hinge for internally hinging the display case to the frame detail, a concealed magnetic catch for securing the display face to the frame detail in a closed position, and a plurality of spaced apart compression springs mounted within the frame detail for pressing a sheet to be displayed flush against the display face at a plurality of pressure points.
Inventors
- 👤 William H. King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:56
CPC Classifications
D; D06; D06C; D06C3/00; D06C3/08; G; G09; G09F; G09F13/00; G09F13/04; G09F13/0418; G09F13/0454
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
210 words
A display system comprising a transparent display face, a frame detail surrounding said display face, means for internally hinging said display face to said frame detail, means for internally latching said display face to said frame detail in a closed position, means for retaining a sheet to be displayed within said frame detail, means for urging said sheet flush against said display face, wherein said display face and said frame detail are of respective predetermined dimensions for defining a reveal therebetween, wherein said means for internally latching further comprises a magnet receiver plate connected to an inside surface of said display face at a location adjacent to and internally of said reveal, a corner bracket extending from an inside surface adjacent to and internally of said reveal, a slider bar adapted to slide within said corner bracket between predetermined lower and upper positions, said slider bar including a portion which extends across said reveal, a magnetic assembly mounted to said slider bar and adapted to receive and engage said magnet receiver plate when said display face is in said closed position and said slider bar is in said lower position and to release and disengage said magnet receiver plate responsive to said slider bar being lifted to said upper position.
Claim 2
Dependent Claim
210 words
A display system comprising a transparent display face, a frame detail surrounding said display face, means for internally hinging said display face to said frame detail, means for internally latching said display face to said frame detail in a closed position, means for retaining a sheet to be displayed within said frame detail, means for urging said sheet flush against said display face, wherein said display face and said frame detail are of respective predetermined dimensions for defining a reveal therebetween, wherein said means for internally latching further comprises a magnet receiver plate connected to an inside surface of said display face at a location adjacent to and internally of said reveal, a corner bracket extending from an inside surface adjacent to and internally of said reveal, a slider bar adapted to slide within said corner bracket between predetermined lower and upper positions, said slider bar including a portion which extends across said reveal, a magnetic assembly mounted to said slider bar and adapted to receive and engage said magnet receiver plate when said display face is in said closed position and said slider bar is in said lower position and to release and disengage said magnet receiver plate responsive to said slider bar being lifted to said upper position.
Claim 3
Dependent Claim
84 words
The display system of claim 1 wherein said means for internally hinging further comprises a hinge frame connected to an inside surface of said display face at a location adjacent to and internally of said reveal, a hinge bracket connected to said frame detail at said location adjacent to and internally of said reveal, and pivot means extending through each said hinge frame and hinge bracket enabling said display face to swing between an open and said closed position relative to said frame detail.
Claim 4
Dependent Claim
33 words
The display system of claim 2, further comprising a painted graphic feed overlying said hinge frame on an external surface of said display face for concealing said hinge frame within the frame detail.
Claim 5
Dependent Claim
15 words
The display system of claim 2, wherein said hinge frame is fabricated from extruded aluminum.
Claim 6
Dependent Claim
15 words
The display system of claim 2, wherein said hinge bracket is fabricated from formed steel.
Claim 7
Dependent Claim
46 words
The display system of claim 2, wherein said pivot means further comprises a steel roll pin extending through respective openings in said hinge frame and said hinge bracket, and a nylon flat washer surrounding said roll pin and lying between said hinge bracket and hinge frame.
Claim 8
Dependent Claim
43 words
The display system of claim 2, wherein said hinge bracket is connected to said frame detail by means of a corner bracket extending from an inside surface of said detail behind said reveal to said location adjacent to and internally of said reveal.
Claim 9
Dependent Claim
34 words
The display system of claim 1, further comprising a painted graphic feed overlying said magnet receiver plate on an external surface of said display face for concealing said receiver plate within the frame detail.
Claim 10
Dependent Claim
22 words
The display system of claim 1, wherein said display face is fabricated from one of either clear non-reflective acrylic or vandal-resistant polycarbonate.
Claim 11
Dependent Claim
48 words
The display system of claim 1, wherein said means for retaining further comprises a spring steel poster clip secured to an inside surface of said display face by means of a steel plate screwed into said display face at a location adjacent to and internally of said reveal.
Claim 12
Dependent Claim
43 words
The display system of claim 10, further comprising a painted graphic feed overlying said spring steel poster clip and steel plate on an external surface of said display face for concealing said spring steel poster clip and steel plate within the frame detail.
Claim 13
Dependent Claim
18 words
The display system of claim 1, further comprising means for illuminating said sheet from within said frame detail.
Claim 14
Dependent Claim
40 words
The display system of claim 12, wherein said means for illuminating further comprises one or more lamps adjacent said frame detail and optical lighting film means for diffusing light generated by said one or more lamps evenly across said sheet.
Claim 15
Dependent Claim
68 words
The display system of claim 13, wherein said optical lighting film means comprises at least one sheet of one optical lighting film intermediate respective ones of said lamps and the interior of said frame detail for diffusing the light generated by said lamps while reducing exposure of said sheet to ultraviolet rays, and a further sheet of said optical lighting film covering a rear surface of said detail.
Claim 16
Dependent Claim
17 words
The display system of claim 1, further comprising an extruded aluminum casing integral with said frame detail.
Claim 17
Dependent Claim
128 words
A display system comprising a transparent display face, a frame detail surrounding said display face, means for internally hinging said display face to said frame detail, means for internally latching said display face to said frame detail in a closed position, means for retaining a sheet to be displayed within said frame detail, means for urging said sheet flush against said display face, wherein said means for urging comprises a plurality of coiled compression springs mounted internally to a rear surface of said frame detail, each of said springs including a linear wire having a bent portion extending therefrom adapted to press said sheet against said display face at predetermined pressure points for allowing said sheet to expand and contact due to thermal and humidity changes without wrinkling.
Claim 18
Dependent Claim
128 words
A display system comprising a transparent display face, a frame detail surrounding said display face, means for internally hinging said display face to said frame detail, means for internally latching said display face to said frame detail in a closed position, means for retaining a sheet to be displayed within said frame detail, means for urging said sheet flush against said display face, wherein said means for urging comprises a plurality of coiled compression springs mounted internally to a rear surface of said frame detail, each of said springs including a linear wire having a bent portion extending therefrom adapted to press said sheet against said display face at predetermined pressure points for allowing said sheet to expand and contact due to thermal and humidity changes without wrinkling.
Claim 19
Dependent Claim
31 words
The display system of claim 16, wherein each said plurality of coiled springs is mounted to said rear surface of said frame detail by an associated self adhesive circuit board mount.
Claim 20
Dependent Claim
22 words
The display system of claim 16, wherein said display face is fabricated from one of either clear non-reflective acrylic or vandal-resistant polycarbonate.
Claim 21
Dependent Claim
48 words
The display system of claim 16, wherein said means for retaining further comprises a spring steel poster clip secured to an inside surface of said display face by means of a steel plate screwed into said display face at a location adjacent to and internally of said reveal.
Claim 22
Dependent Claim
18 words
The display system of claim 16, further comprising means for illuminating said sheet from within said frame detail.
Claim 23
Dependent Claim
17 words
The display system of claim 16, further comprising an extruded aluminum casing integral with said frame detail.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-29 | 1996-06-29 | 1996-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-29 | 2000-06-29 | 2000-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-29 | 2004-06-29 | 2004-12-29 | $7700.00 | Window Closed / Lapsed |