Patent US2683655A successfully refreshed from Google Patents.
Patent US3821588A successfully refreshed from Google Patents.
US3821588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display panel having flat side edges to permit butting together plural panels
Assignee: Unisys Corp
•
Filing: 1973-03-08
•
Granted: 1974-06-28
•
Expires: 1993-03-08
Abstract
Abstract A display panel includes a base plate and a face plate to define a housing which is filled with gas and which contains any desired form of display device including, for example, segmented cathode glow electrodes or a matrix of dot-like cells, each having an anode and a cathode electrode. Assuming that a plurality of such panels are to be butted along adjacent side edges, then along these side edges of the base plate and face plate, the lower surface of the face plate and the top surface of the base plate are provided with aligned channels. Thus, each panel has two pairs of aligned channels. A rigid thin plate is inserted in each pair of channels, and the remainder of the channels, not taken up by the thin plates, and the space between the plates adjacent to the outer edges thereof are filled with a sealing material such as a glass frit which can be fused by the application of heat, and which cools to form a gas-tight seal. In this panel, the side edges are flat, and a plurality of such panels can be butted together to provide a combination large-area panel.
Inventors
- 👤 G Przybylek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:58
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
284 words
A display device comprising a sandwich-type envelope including at least a base plate and a face plate sealed together along their aligned peripheries to form a disPlay panel, said base plate and face plate having aligned coplanar left edges and aligned coplanar right edges, a first slot in the top surface of said base plate adjacent to said left side edge thereof and a similar aligned first slot in the bottom surface of said face plate, said first slots having aligned coplanar outer walls adjacent to the outer left side edge of said base plate and face plate and aligned coplanar inner walls adjacent to the inside of said panel, said first slots forming a first pair of slots, a second slot in the top surface of said base plate adjacent to said right edge of said base plate and a similar aligned second slot in the bottom surface of said face plate, said second slots having aligned coplanar outer walls adjacent to the outer right side edges of said base plate and face plate and aligned coplanar walls adjacent to the inside of said panel, said second slots forming a second pair of slots, a relatively rigid plate seated in each of said pairs of aligned slots, a sealing material filling said pairs of aligned slots and sealing the portions thereof adjacent to said rigid plates and forming a gas-tight seal between said base plate and face plate along the left and right side edges thereof, said sealing material and said left and right side edges of said base plate and face plate forming flat left and right side edges of said panel to permit buttability of one panel with a similar panel.
Claim 2
Dependent Claim
284 words
A display device comprising a sandwich-type envelope including at least a base plate and a face plate sealed together along their aligned peripheries to form a disPlay panel, said base plate and face plate having aligned coplanar left edges and aligned coplanar right edges, a first slot in the top surface of said base plate adjacent to said left side edge thereof and a similar aligned first slot in the bottom surface of said face plate, said first slots having aligned coplanar outer walls adjacent to the outer left side edge of said base plate and face plate and aligned coplanar inner walls adjacent to the inside of said panel, said first slots forming a first pair of slots, a second slot in the top surface of said base plate adjacent to said right edge of said base plate and a similar aligned second slot in the bottom surface of said face plate, said second slots having aligned coplanar outer walls adjacent to the outer right side edges of said base plate and face plate and aligned coplanar walls adjacent to the inside of said panel, said second slots forming a second pair of slots, a relatively rigid plate seated in each of said pairs of aligned slots, a sealing material filling said pairs of aligned slots and sealing the portions thereof adjacent to said rigid plates and forming a gas-tight seal between said base plate and face plate along the left and right side edges thereof, said sealing material and said left and right side edges of said base plate and face plate forming flat left and right side edges of said panel to permit buttability of one panel with a similar panel.
Claim 3
Dependent Claim
40 words
The panel defined in claim 1 wherein said plates are seated in said pairs of aligned slots and bear against the aligned coplanar inner walls thereof, whereby, in effect, forming the side walls of the inner portion of said panel.
Claim 4
Dependent Claim
29 words
The panel defined in claim 1 wherein said plates are narrower than said slots and are positioned in said slots so that they bear against the inner walls thereof.
Claim 5
Dependent Claim
50 words
The panel defined in claim 1 wherein said panel includes upper and lower edges and including a plurality of gas-filled display devices within said panel, at least two electrodes in operative relation with each of said display devices, said electrodes extending through the upper and lower edges of said panel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |