Patent US70769A successfully refreshed from Google Patents.
US3900935A
Expired / Lapsed
US
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Method of making the seal in a panel device having a seal enclosing an electrode array
Assignee: Unisys Corp
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Filing: 1974-09-16
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Granted: 1975-08-26
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Expires: 1994-09-16
Abstract
Abstract A panel device includes a plurality of plates which are sealed together hermetically with an array of electrodes disposed in the seal and seated on one of the plates as a support therefor. An effective seal between the parts is made by providing a quantity of sealing material in the seal area, moving the electrodes away from and back to the plate on which they are seated to suck the sealing material under the electrodes and to seat the sealing material on adjacent parts beneath and adjacent to the electrodes, and then passing a thin blade through the sealing material between the electrodes and the support plate in the seal area, in contact with both said parts, to cause the sealing material to wet such surface, whereby a tight leak-free hermetic seal can be formed.
Inventors
- 👤 Bernard Caras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:53
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/26; H01J9/261
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
89 words
METHOD OF HERMETICALLY SEALING A FLAT PANEL COMPRISING AT LEAST TWO PLATES HAVING AN ARRAY OF ELECTRODES BETWEEN THEM COMPRISING SPREADING A LAYER OF SEALING MATERIAL COVERING SAID PLATES AND THE ELECTRODES ASSOCIATED THEREWITH IN THE AREA WHERE THE HERMETIC SEAL IS TO BE FORMED, MECHANICALLY AGITATING SAID ELECTRODES UP AND DOWN TO PERMIT SEALING MATERIAL TO FLOW UNDER THEM, APPLYING A SHEARING FORCE TO SAID SEALING MATERIAL TO CAUSE IT TO WET SAID ELECTRODES AND SAID PLATE, AND HEATING SAID SEALING MATERIAL TO FORM THE DESIRED HERMETIC SEAL.
Claim 2
Dependent Claim
89 words
METHOD OF HERMETICALLY SEALING A FLAT PANEL COMPRISING AT LEAST TWO PLATES HAVING AN ARRAY OF ELECTRODES BETWEEN THEM COMPRISING SPREADING A LAYER OF SEALING MATERIAL COVERING SAID PLATES AND THE ELECTRODES ASSOCIATED THEREWITH IN THE AREA WHERE THE HERMETIC SEAL IS TO BE FORMED, MECHANICALLY AGITATING SAID ELECTRODES UP AND DOWN TO PERMIT SEALING MATERIAL TO FLOW UNDER THEM, APPLYING A SHEARING FORCE TO SAID SEALING MATERIAL TO CAUSE IT TO WET SAID ELECTRODES AND SAID PLATE, AND HEATING SAID SEALING MATERIAL TO FORM THE DESIRED HERMETIC SEAL.
Claim 3
Dependent Claim
40 words
The method of claim 1 wherein said step of applying a shearing force is achieved by passing a thin blade through said sealing material between said electrodes and at least one of said plates on which said electrodes are supported.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said sealing material comprises a glass frit in a solvent binder.
Claim 5
Dependent Claim
20 words
The method of claim 1 wherein said sealing material comprises a glass frit in a solvent binder of amyl acetate.
Claim 6
Dependent Claim
145 words
Method of making a display panel and forming an hermetic seal therein comprising preparing at least two support plates, placing said two plates together in sandwich form, disposing an array of parallel electrodes between said two plates and seated on one of said plates as a base plate, there being a seal area along the abutting perimeters of said plates through which said electrodes extend, providing a quantity of a sealing material along said seal area and overlaying said one plate and said electrodes, mecahnically agitating said electrodes to cause sealing material to flow between said electrodes and said one plate, passing a thin blade through said sealing material between said electrodes and said one plate to provide intimate wetting of said sealing material with said electrodes and said plate, and heating said seal area and said sealing material to form the desired hermetic seal.
Claim 7
Dependent Claim
145 words
Method of making a display panel and forming an hermetic seal therein comprising preparing at least two support plates, placing said two plates together in sandwich form, disposing an array of parallel electrodes between said two plates and seated on one of said plates as a base plate, there being a seal area along the abutting perimeters of said plates through which said electrodes extend, providing a quantity of a sealing material along said seal area and overlaying said one plate and said electrodes, mecahnically agitating said electrodes to cause sealing material to flow between said electrodes and said one plate, passing a thin blade through said sealing material between said electrodes and said one plate to provide intimate wetting of said sealing material with said electrodes and said plate, and heating said seal area and said sealing material to form the desired hermetic seal.
Claim 8
Dependent Claim
153 words
Method of making a display panel and forming an hermetic seal therein comprising preparing a base plate and a top plate and placing them together in sandwich form, so that their perimeters form a seal area, said base plate having an edge portion projecting beyond the adjacent edge of said top plate along said seal area, disposing an array of parallel strip electrodes between said two plates and seated on said base plate and on the edge portion thereof, providing a quantity of a sealing material along said seal area, mechanically agitating said electrodes to cause said sealing material to flow under said electrodes and fill the space between said electrodes and said base plate, and passing a thin blade through said sealing material between said electrodes and said one plate to reduce the viscosity of said material and thus provide intimate wetting of said sealing material with said electrodes and said plate.
Claim 9
Dependent Claim
153 words
Method of making a display panel and forming an hermetic seal therein comprising preparing a base plate and a top plate and placing them together in sandwich form, so that their perimeters form a seal area, said base plate having an edge portion projecting beyond the adjacent edge of said top plate along said seal area, disposing an array of parallel strip electrodes between said two plates and seated on said base plate and on the edge portion thereof, providing a quantity of a sealing material along said seal area, mechanically agitating said electrodes to cause said sealing material to flow under said electrodes and fill the space between said electrodes and said base plate, and passing a thin blade through said sealing material between said electrodes and said one plate to reduce the viscosity of said material and thus provide intimate wetting of said sealing material with said electrodes and said plate.
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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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |