US4980909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protector module for laminar type telephone blocks
Assignee: North Hills Signal Processing Corp
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Filing: 1989-11-02
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Granted: 1990-12-25
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Expires: 2009-11-02
Abstract
Abstract An individual telephone subscriber circuit module for use with laminar type connector blocks employing conventional three-element gas tubes of diameter greater than the thickness of an individual lamina. The module houses two gas tubes in side-by-side relation and straddles two adjacent laminae on the block to protect a pair of adjacent circuits.
Inventors
- 👤 Carl Meyerhoefer
- 👤 Peter Visconti
- 👤 Michael Fasano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:59
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
An improved telephone subscriber circuit protector module for use with laminar type blocks comprising: a housing element having a principal longitudinal axis defining a transversel oriented recess therein, a pair of three-element gas tubes positioned within said recess, each gas tube including first and second gas chambers, first and second end electrodes, and a medially disposed electrode communicating with said gas chambers; said housing having first, second and third channels disposed in a first plane, and fourth, fifth and sixth channels disposed in a second plane in spaced parallel relation with respect to said first plane; first and second tip contacts and aground contact positioned in said first, second and third channels, respectively, and communicating respectively with first and second end electrodes and said medially disposed electrode on one of said gas tubes; first and second ring contacts and a ground contact positioned in said fourth, fifth and sixth channels, respectively, and communicating with said first and second end electrodes and said medially disposed electrode on the other of said gas tubes.
Claim 2
Dependent Claim
172 words
An improved telephone subscriber circuit protector module for use with laminar type blocks comprising: a housing element having a principal longitudinal axis defining a transversel oriented recess therein, a pair of three-element gas tubes positioned within said recess, each gas tube including first and second gas chambers, first and second end electrodes, and a medially disposed electrode communicating with said gas chambers; said housing having first, second and third channels disposed in a first plane, and fourth, fifth and sixth channels disposed in a second plane in spaced parallel relation with respect to said first plane; first and second tip contacts and aground contact positioned in said first, second and third channels, respectively, and communicating respectively with first and second end electrodes and said medially disposed electrode on one of said gas tubes; first and second ring contacts and a ground contact positioned in said fourth, fifth and sixth channels, respectively, and communicating with said first and second end electrodes and said medially disposed electrode on the other of said gas tubes.
References Cited (Backward Citations)
US4422121A
Cited
US4573100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |