US4687540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing glass capacitors and resulting product
Assignee: Olin Corp
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Filing: 1986-07-23
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Granted: 1987-08-18
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Expires: 2006-07-23
Abstract
Abstract This invention relates to a laminated glass capacitor and method of making the capacitor. The capacitor is constructed of a plurality of internal electrodes stacked and having glass layers therebetween to give electrostatic capacity. External electrodes are connected to associated internal electrodes for taking out the electrostatic capacity. The glass layers are selected from a substantially pore free glass and the internal electrodes are formed of a metal foil selected from the group consisting of deoxidized copper alloy and oxygen free copper alloy.
Inventors
- 👤 Narendra N. Singhdeo
- 👤 Michael J. Pryor
- 👤 Charles J. Leedecke
- 👤 Norman G. Masse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:36
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/10; H01G4/105; H01G4/30; C; C03; C03C; C03C2217/00; C03C2217/20; C03C2217/25; C03C2217/251; C03C2217/253; C03C2218/00; C03C2218/10; C03C2218/17; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K2203/00; H05K2203/06; H05K2203/068; H05K3/00; H05K3/38; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
113 words
A laminated glass capacitor comprising: a plurality of internal electrodes formed in a laminated state with glass layers mutually held between each of two of the internal electrodes to give electrostatic capacity; a pair of external electrodes connected to the associated ones of said internal electrodes for taking out the electrostatic capacity, the improvement comprising; said glass layers being selected from a substantially pore free glass having a viscosity of between about 10 3 to about 10 8 at a temperature from about 600° C. to about 1025° C.; and said internal electrodes being of a first metal foil selected from the group consisting of deoxidized copper alloy and oxygen free copper alloy.
Claim 2
Dependent Claim
113 words
A laminated glass capacitor comprising: a plurality of internal electrodes formed in a laminated state with glass layers mutually held between each of two of the internal electrodes to give electrostatic capacity; a pair of external electrodes connected to the associated ones of said internal electrodes for taking out the electrostatic capacity, the improvement comprising; said glass layers being selected from a substantially pore free glass having a viscosity of between about 10 3 to about 10 8 at a temperature from about 600° C. to about 1025° C.; and said internal electrodes being of a first metal foil selected from the group consisting of deoxidized copper alloy and oxygen free copper alloy.
Claim 3
Dependent Claim
41 words
The laminated glass capacitor of claim 1 further comprising said glass being selected from a substantially pore free glass having a consistency of about 10 4 to about 10 6 poise in the temperature range of about 800° to about 1000°C.
Claim 4
Dependent Claim
26 words
The laminated glass capacitor of claim 2 further comprising said glass having a coefficient of thermal expansion between about 50×10 -7 to about 160×10 -7 in/in/°C.
Claim 5
Dependent Claim
26 words
The laminated glass capacitor of claim 3 further comprising said glass having a coefficient of thermal expansion between about 140×10 -7 to about 160×10 -7 in/in/°C.
Claim 6
Dependent Claim
31 words
The laminated glass capacitor of claim 4 wherein said external electrodes are of a second metal foil selected from the group consisting of deoxidized copper alloy and oxygen free copper alloy.
Claim 7
Dependent Claim
26 words
The laminated glass capacitor of claim 5 wherein said external electrodes are selected from the group of copper, copper alloy, gold, gold alloy and mixtures thereof.
Claim 8
Dependent Claim
24 words
The laminated glass capacitor of claim 6 further comprising said glass being selected from the group consisting of silicate, borosilicate, borate and phosphate glasses.
Claim 9
Dependent Claim
123 words
The process of producing a laminated glass capacitor comprising, comprising the steps of: providing a glass; providing a plurality of internal electrodes; stacking and bonding said internal electrodes with layers of said glass between each of two of the internal electrodes to give electrostatic capacity; providing a pair of external electrodes connected to the associated ones of said internal electrodes for taking out the electrostatic capacity; the improvement comprising the steps of; selecting said internal electrodes from the group consisting of deoxidized copper alloy and oxygen free copper alloy; and forming said glass layers from a substantially pore free glass having a viscosity of between about 10 3 to about 10 8 at a temperature from about 600° C. to about 1025° C.
Claim 10
Dependent Claim
123 words
The process of producing a laminated glass capacitor comprising, comprising the steps of: providing a glass; providing a plurality of internal electrodes; stacking and bonding said internal electrodes with layers of said glass between each of two of the internal electrodes to give electrostatic capacity; providing a pair of external electrodes connected to the associated ones of said internal electrodes for taking out the electrostatic capacity; the improvement comprising the steps of; selecting said internal electrodes from the group consisting of deoxidized copper alloy and oxygen free copper alloy; and forming said glass layers from a substantially pore free glass having a viscosity of between about 10 3 to about 10 8 at a temperature from about 600° C. to about 1025° C.
Claim 11
Dependent Claim
42 words
The process of claim 8 further comprising the step of selecting said glass from a substantially pore free glass having a consistency of about 10 4 to about 10 6 poise in the temperature range of about 800° to about 1000° C.
Claim 12
Dependent Claim
28 words
The process of claim 9 further comprising the step of selecting said glass having a coefficient of thermal expansion between about 50×10 -7 to about 160×10 -7 in/in/°C.
Claim 13
Dependent Claim
28 words
The process of claim 10 further comprising the step of selecting said glass having a coefficient of thermal expansion between about 140×10 -7 to about 160×10 -7 in/in/°C.
Claim 14
Dependent Claim
27 words
The process of claim 11 further comprising the step of forming said external electrodes from the group consisting of deoxidized copper alloy and oxygen free copper alloy.
Claim 15
Dependent Claim
28 words
The process of claim 12 further comprising the step of forming said external electrodes from the group consisting of copper, copper alloy, gold, gold alloy and mixtures thereof.
Claim 16
Dependent Claim
24 words
The process of claim 13 further comprising the step of selecting said glass from the group consisting of silicate, borosilicate, borate and phosphate glasses.
Claim 17
Dependent Claim
9 words
The article produced by the process of claim 8.
Claim 18
Dependent Claim
9 words
The article produced by the process of claim 10.
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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) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |