Patent US3617832A successfully refreshed from Google Patents.
US3617832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic condensers
Assignee: TDK Corp
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Filing: 1969-12-30
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Granted: 1971-11-02
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Expires: 1989-12-30
Abstract
Abstract A ceramic condenser which comprises a combination of a cylindrical ceramic dielectric member having metal electrodes at both end surfaces and an insulator having a projection to be engaged in central through hole of the dielectric member. The member is provided with a connecting metal fixture as butted against one of the electrodes at the side opposite to the one receiving the insulator. A synthetic resin is molded around outer and inner peripheries of the dielectric member so as to expose the connecting metal member and the other electrode. The connecting fixture has a conductor extending through the central through holes of the dielectric member and the insulator, and threaded at its end so as to be fastened by means of a nut, so that a panel shape metal connecting plate will be held between the dielectric member and insulator as butted against exposed electrode of the member.
Inventors
- 👤 Shiro Ito
- 👤 Shoichi Iwaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:35
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/02; H01G2/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
161 words
A ceramic condenser comprising in combination a cylindrical member of a ceramic dielectric, a pair of first and second metallic electrodes formed independently on the respective end surfaces of said ceramic dielectric member, a connecting metal fixture having a through hole in the center and an outer surface and being bonded to said first electrode, a molded part of a synthetic resin enclosing circumferentially said ceramic dielectric and said first metallic electrode, said second electrode and said outer surface of said connecting metal fixture being spaced outside of said molded part, said molded part being provided in the center with a through hole, and a cylindrical insulator having a flange provided in the center with a projection to be inserted in said through hole of the molded part and with a through hole in the center, said insulator being adapted to hold a chassis member between its surface around said projection and the exposed second electrode on the ceramic dielectric member.
Claim 2
Dependent Claim
161 words
A ceramic condenser comprising in combination a cylindrical member of a ceramic dielectric, a pair of first and second metallic electrodes formed independently on the respective end surfaces of said ceramic dielectric member, a connecting metal fixture having a through hole in the center and an outer surface and being bonded to said first electrode, a molded part of a synthetic resin enclosing circumferentially said ceramic dielectric and said first metallic electrode, said second electrode and said outer surface of said connecting metal fixture being spaced outside of said molded part, said molded part being provided in the center with a through hole, and a cylindrical insulator having a flange provided in the center with a projection to be inserted in said through hole of the molded part and with a through hole in the center, said insulator being adapted to hold a chassis member between its surface around said projection and the exposed second electrode on the ceramic dielectric member.
Claim 3
Dependent Claim
191 words
A ceramic condenser comprising in combination a cylindrical member of a ceramic dielectric, a pair of first and second metallic electrodes formed independently on the respective end surfaces of said ceramic dielectric member, a first connecting metal fixture bonded to said first electrode, said metal fixture having a through hole in the center and having a disk-shaped inner member and a cylindrical-shaped outer member, a second ring-shaped connecting metal fixture bonded to said second electrode and having an outer surface, a molded part of a synthetic resin enclosing circumferentially said ceramic dielectric, a portion of said cylindrical-shaped outer member of said first connecting metal fixture and said outer surface of said second connecting metal fixture being spaced outside of said molded part, said molded part being provided in the center with a through hole, and an insulator provided in the center with an axial projection to be inserted in said through hole of the molded part and with an axial through hole in the center, said insulator being adapted to hold a chassis between its surface around said axial projection and the exposed second metal fixture on the ceramic dielectric member.
Claim 4
Dependent Claim
191 words
A ceramic condenser comprising in combination a cylindrical member of a ceramic dielectric, a pair of first and second metallic electrodes formed independently on the respective end surfaces of said ceramic dielectric member, a first connecting metal fixture bonded to said first electrode, said metal fixture having a through hole in the center and having a disk-shaped inner member and a cylindrical-shaped outer member, a second ring-shaped connecting metal fixture bonded to said second electrode and having an outer surface, a molded part of a synthetic resin enclosing circumferentially said ceramic dielectric, a portion of said cylindrical-shaped outer member of said first connecting metal fixture and said outer surface of said second connecting metal fixture being spaced outside of said molded part, said molded part being provided in the center with a through hole, and an insulator provided in the center with an axial projection to be inserted in said through hole of the molded part and with an axial through hole in the center, said insulator being adapted to hold a chassis between its surface around said axial projection and the exposed second metal fixture on the ceramic dielectric member.
Claim 5
Dependent Claim
127 words
A ceramic condenser comprising in combination a cylindrical member of a ceramic dielectric, a pair of first and second metallic electrodes formed independently on the respective end surfaces of said ceramic dielectric member, a first connecting metal fixture inserted into the ceramic dielectric member and bonded to said first electrode, said first connecting metal fixture having an axial through conductor threaded on both extended end parts, a second panel-shaped connecting metal fixture bonded to said second electrode and having means to connect the second fixture to a chassis, and a molded part of a synthetic resin insulator enclosing circumferentially said ceramic dielectric, said threaded end parts of the first metal fixture and said connecting means of the second metal fixture being spaced outside of said molded part.
Claim 6
Dependent Claim
127 words
A ceramic condenser comprising in combination a cylindrical member of a ceramic dielectric, a pair of first and second metallic electrodes formed independently on the respective end surfaces of said ceramic dielectric member, a first connecting metal fixture inserted into the ceramic dielectric member and bonded to said first electrode, said first connecting metal fixture having an axial through conductor threaded on both extended end parts, a second panel-shaped connecting metal fixture bonded to said second electrode and having means to connect the second fixture to a chassis, and a molded part of a synthetic resin insulator enclosing circumferentially said ceramic dielectric, said threaded end parts of the first metal fixture and said connecting means of the second metal fixture being spaced outside of said molded part.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |