US3854069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an electrical contact for a color pickup tube
Assignee: Sony Corp
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Filing: 1972-11-22
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Granted: 1974-12-10
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Expires: 1992-11-22
Abstract
Abstract An electrical contact is made to one or more electrode layers on the inside surface of the faceplate assembly of a television camera by coating a conductive rivet with indium, inserting the rivet through a bore in faceplate assembly of the camera tube from the outside and flattening the end of the rivet coating which projects inside the tube to make contact with the electrode layer. The riveting takes place with a force sufficient to effect a hermetic seal between the rivet and the faceplate assembly of the camera tube.
Inventors
- 👤 S Tagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:17
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/40; H05K3/4038; H05K3/4046; C; C01; C01F; C01F11/00; C01F11/20; C01F11/24; C01F11/32; C08; C08L; C08L97/00; C08L97/02; H01; H01J; H01J29/00; H01J29/92; H01J9/00; H01J9/24; H01J9/28; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0382; H05K2201/10; H05K2201/10227; H05K2201/10416; H05K3/30; H05K3/32; H05K3/34; H05K3/346
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
221 words
An improved electrical contact for use with an image signal pickup tube of the type havng a transparent faceplate assembly, the faceplate assembly being provided with at least one hole passing from its exterior surface to its interior surface and having an electrode disposed on its interior surface, wherein the improvement comprises a metal post having a main portion whose diameter is less than the diameter of the faceplate assembly hole and an enlarged head portion whose diameter is greater than the diameter of the faceplate assembly hole; and a coating of electrically conductive, deformable material hermetically sealed to the main portion of the metal post and extending adjacent the enlarged head portion, the coated main portion of the metal post being disposed in the faceplate assembly hole and extending therethrough, a portion of the coating on the end of the metal post, nearest to the exterior surface of the faceplate aSsembly forming an hermetic seal at the juncture of said exterior surface and said metal post and a portion of the coating on the end of the metal post nearest to the interior surface of the faceplate assembly being deformed to extend outward over a portion of said interior surface so as to contact a surface of the electrode remote from said interior surface and to provide a hermetic seal.
Claim 2
Dependent Claim
221 words
An improved electrical contact for use with an image signal pickup tube of the type havng a transparent faceplate assembly, the faceplate assembly being provided with at least one hole passing from its exterior surface to its interior surface and having an electrode disposed on its interior surface, wherein the improvement comprises a metal post having a main portion whose diameter is less than the diameter of the faceplate assembly hole and an enlarged head portion whose diameter is greater than the diameter of the faceplate assembly hole; and a coating of electrically conductive, deformable material hermetically sealed to the main portion of the metal post and extending adjacent the enlarged head portion, the coated main portion of the metal post being disposed in the faceplate assembly hole and extending therethrough, a portion of the coating on the end of the metal post, nearest to the exterior surface of the faceplate aSsembly forming an hermetic seal at the juncture of said exterior surface and said metal post and a portion of the coating on the end of the metal post nearest to the interior surface of the faceplate assembly being deformed to extend outward over a portion of said interior surface so as to contact a surface of the electrode remote from said interior surface and to provide a hermetic seal.
Claim 3
Dependent Claim
13 words
An electrical contact as recited in claim 1 wherein the coating comprises indium.
Claim 4
Dependent Claim
25 words
An electrical contact as recited in claim 1 wherein the enlarged head portion of metal post is disposed adjacent to the faceplate assembly exterior surface.
Claim 5
Dependent Claim
23 words
An electrical contact as recited in claim 1 wherein a photoconductive layer covers the deformed portion of the coating which contacts the electrode.
Claim 6
Independent Claim
120 words
A method of making an electrical contact with a conductive layer formed on a portion of a non-conductive substrate in an image signal pickup device comprising the steps of coating at least a portion of the external surface of a metal post with an electrically conductive, deformable material, boring a hole through the substrate, inserting the coated metal post into the substrate hole from the outside surface of the substrate and pressing the metal coated post at both ends with a predetermined force to hermetically seal the post coating with the interior surface of the hole, deforming a portion of the coating to contact conductive layer on the interior surface of the substrate and to form a hermetic seal therewith.
Claim 7
Independent Claim
120 words
A method of making an electrical contact with a conductive layer formed on a portion of a non-conductive substrate in an image signal pickup device comprising the steps of coating at least a portion of the external surface of a metal post with an electrically conductive, deformable material, boring a hole through the substrate, inserting the coated metal post into the substrate hole from the outside surface of the substrate and pressing the metal coated post at both ends with a predetermined force to hermetically seal the post coating with the interior surface of the hole, deforming a portion of the coating to contact conductive layer on the interior surface of the substrate and to form a hermetic seal therewith.
Claim 8
Dependent Claim
89 words
A method of making an electrical contact as recited in claim 5 wherein the step of coating the portion of the external surface of the metal post comprises the steps of immersing at least a main portion of the metal post in a heated bath containing a lower layer of dissolved indium and an upper layer of dissolved glycerine and forming a taper toward the lower end of the main portion of the metal post in the coating by withdrawing the indium coated metal post rapidly from the bath.
Claim 9
Dependent Claim
55 words
A method of making an electrical contact as recited in claim 6 wherein the step of coating the external surface of the metal post comprises the step of immersing at least a main portion of the metal post in a heated bath containing a layer of dissolved indium and an upper layer of dissolved glycol.
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |