US4050092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-circuit protector
Assignee: TII Corp
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Filing: 1976-08-20
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Granted: 1977-09-20
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Expires: 1996-08-20
Abstract
Abstract An overvoltage protector circuit is disclosed for protecting multiple circuits, e.g. both the antenna and power circuits of a receiver, with a single unitary protector unit. The unit includes one three electrode gas tube connected across a power circuit which has a plug for connection to a wall outlet at one end and a receptacle for receiving the receiver plug at the other. The unit further includes another three electrode gas tube protector, the end electrodes of which are connected across an antenna circuit adapted to be connected at one end to the antenna and at the other end to the receiver antenna terminals (directly or via a splitter network). The ground or neutral system in the power circuit, or a separate auxiliary ground point, is connected to the casing of both overvoltage tubes.
Inventors
- 👤 Frank L. Simokat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:15
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/04; H02H9/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
A multi-circuit overvoltage protector for concurrently protecting both the power and signal circuits of equipment comprising a portable, plug-in unit: a. configured to be manually inserted in a pre-existing power outlet and having: b. plug means for making electrical contact with the contacts of said outlet; c. receptacle means adapted to receive a power plug connected to said power circuits of said equipment; d. a power circuit interconnecting said plug means and receptacle means and having a ground line; e. a first gas filled arrester connected across said power circuit and including a connection to said ground line; f. signal input connector means for receiving the output of a signal circuit; g. signal output connector means for supplying said signal circuit of said equipment; h. a signal coupling circuit interconnecting said signal input and signal output connectors; and i. a second gas filled arrester connected across said signal coupling circuit and including a connection to said ground line of said power circuit.
Claim 2
Dependent Claim
162 words
A multi-circuit overvoltage protector for concurrently protecting both the power and signal circuits of equipment comprising a portable, plug-in unit: a. configured to be manually inserted in a pre-existing power outlet and having: b. plug means for making electrical contact with the contacts of said outlet; c. receptacle means adapted to receive a power plug connected to said power circuits of said equipment; d. a power circuit interconnecting said plug means and receptacle means and having a ground line; e. a first gas filled arrester connected across said power circuit and including a connection to said ground line; f. signal input connector means for receiving the output of a signal circuit; g. signal output connector means for supplying said signal circuit of said equipment; h. a signal coupling circuit interconnecting said signal input and signal output connectors; and i. a second gas filled arrester connected across said signal coupling circuit and including a connection to said ground line of said power circuit.
Claim 3
Dependent Claim
20 words
A protector as defined in claim 1 in which said first and second arresters are of the three terminal type.
Claim 4
Dependent Claim
21 words
A protector as defined in claim 1 in which said signal input connectors are adapted for connection to an antenna circuit.
Claim 5
Dependent Claim
18 words
A protector as defined in claim 3 in which said signal coupling network includes a signal splitting network.
Claim 6
Dependent Claim
24 words
A protector as defined in claim 1 including a shield for shielding said signal coupling circuit, said shield being connected to said ground line.
References Cited (Backward Citations)
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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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |