US3879696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge voltage absorber
Assignee: Toshiba Corp
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Filing: 1973-12-20
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Granted: 1975-04-22
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Expires: 1993-12-20
Abstract
Abstract A surge voltage absorber wherein there are received in a molded case a plurality of surge voltage absorber units whose alarming members are immediately popped out, the moment said absorbing units have been lost their surge absorbing functions; the molded case is fitted with a lever actuated by the projection of at least one of said alarming members and further with an electric signal generator for giving forth an electric signal upon the actuation of said lever.
Inventors
- 👤 Yasutaka Imajyo
- 👤 Ikuo Takano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:42
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/30; H01H85/303; H01H85/306; H01H85/46
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
217 words
A surge voltage absorber comprising: a plurality of surge voltage absorber units each having an insulation tube provided with first and second terminals at their ends respectively, a non-linear resistor element electrically connected at its one end to said first terminal, a fusible element connected at its one end to the other end of said non-linear resistor element, and a projection pin which is connected to the other end of said fusible element and supported in said second terminal so as to be connected to said second terminal and to be projected by a bias means through a hole of said second terminal when said fusible element is interrupted; an insulation substrate provided with first and second external connection terminals which serve to arrange in parallel a plurality of said surge absorber units in the same direction and detachably support said absorber units at their first and second terminals, respectively; a lever rotatably mounted on said insulation substrate, one surface of said lever facing in common all the projection pins of said absorber units; and a signal generator provided on said insulation substrate on the side facing the other surface of said lever so as to be operated by rotation of said lever, said rotation being caused by projection of at least one of said projection pins.
Claim 2
Dependent Claim
217 words
A surge voltage absorber comprising: a plurality of surge voltage absorber units each having an insulation tube provided with first and second terminals at their ends respectively, a non-linear resistor element electrically connected at its one end to said first terminal, a fusible element connected at its one end to the other end of said non-linear resistor element, and a projection pin which is connected to the other end of said fusible element and supported in said second terminal so as to be connected to said second terminal and to be projected by a bias means through a hole of said second terminal when said fusible element is interrupted; an insulation substrate provided with first and second external connection terminals which serve to arrange in parallel a plurality of said surge absorber units in the same direction and detachably support said absorber units at their first and second terminals, respectively; a lever rotatably mounted on said insulation substrate, one surface of said lever facing in common all the projection pins of said absorber units; and a signal generator provided on said insulation substrate on the side facing the other surface of said lever so as to be operated by rotation of said lever, said rotation being caused by projection of at least one of said projection pins.
Claim 3
Dependent Claim
217 words
A surge voltage absorber comprising: a plurality of surge voltage absorber units each having an insulation tube provided with first and second terminals at their ends respectively, a non-linear resistor element electrically connected at its one end to said first terminal, a fusible element connected at its one end to the other end of said non-linear resistor element, and a projection pin which is connected to the other end of said fusible element and supported in said second terminal so as to be connected to said second terminal and to be projected by a bias means through a hole of said second terminal when said fusible element is interrupted; an insulation substrate provided with first and second external connection terminals which serve to arrange in parallel a plurality of said surge absorber units in the same direction and detachably support said absorber units at their first and second terminals, respectively; a lever rotatably mounted on said insulation substrate, one surface of said lever facing in common all the projection pins of said absorber units; and a signal generator provided on said insulation substrate on the side facing the other surface of said lever so as to be operated by rotation of said lever, said rotation being caused by projection of at least one of said projection pins.
Claim 4
Dependent Claim
217 words
A surge voltage absorber comprising: a plurality of surge voltage absorber units each having an insulation tube provided with first and second terminals at their ends respectively, a non-linear resistor element electrically connected at its one end to said first terminal, a fusible element connected at its one end to the other end of said non-linear resistor element, and a projection pin which is connected to the other end of said fusible element and supported in said second terminal so as to be connected to said second terminal and to be projected by a bias means through a hole of said second terminal when said fusible element is interrupted; an insulation substrate provided with first and second external connection terminals which serve to arrange in parallel a plurality of said surge absorber units in the same direction and detachably support said absorber units at their first and second terminals, respectively; a lever rotatably mounted on said insulation substrate, one surface of said lever facing in common all the projection pins of said absorber units; and a signal generator provided on said insulation substrate on the side facing the other surface of said lever so as to be operated by rotation of said lever, said rotation being caused by projection of at least one of said projection pins.
References Cited (Backward Citations)
US3450949A
Cited
US3781607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |