US3927275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone isolation jack panel
Assignee: Magnetic Controls Co
•
Filing: 1974-11-05
•
Granted: 1975-12-16
•
Expires: 1994-11-05
Abstract
Abstract A telephone equipment jack panel for use in circuits where high voltages may be present wherein each jack is surrounded by and enclosed in a plastic support. A plurality of these supports are mounted in a row on a base and further enclosed by a cover which provides access to the jacks only through holes positioned a predetermined distance from the entrance ends of the jacks so that the jacks may be reached only by the insertion of a special highly insulated plug.
Inventors
- 👤 James C Deitch
- 👤 Lawrence A Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:43
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/738; H04M1/74; H04M1/745; Y; Y10; Y10S; Y10S439/00; Y10S439/911
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
165 words
A telephone jack panel for use in telephone circuits where high voltage may be present comprising in combination: a plurality of jacks; a base; a plurality of electrically insulating jack support means on said base, each of said support means including at least one cavity for holding the jack, said support means completely surrounding the jack on top, bottom, and sides except for one side, the missing side allowing the cavity to open in a direction away from the other jack cavities so as to provide maximum electrical isolation between the jacks; an electrically insulating cover enclosing said jack support means and closing said one side, said cover spaced from the entrance ends of said jacks in said support means, and said cover having a plurality of holes aligned with the entrance ends of the jacks, said jack panel adapted to receive insulated plugs which plugs are shaped to fit through the holes in the cover and extend into the entrance ends of the jacks.
Claim 2
Dependent Claim
165 words
A telephone jack panel for use in telephone circuits where high voltage may be present comprising in combination: a plurality of jacks; a base; a plurality of electrically insulating jack support means on said base, each of said support means including at least one cavity for holding the jack, said support means completely surrounding the jack on top, bottom, and sides except for one side, the missing side allowing the cavity to open in a direction away from the other jack cavities so as to provide maximum electrical isolation between the jacks; an electrically insulating cover enclosing said jack support means and closing said one side, said cover spaced from the entrance ends of said jacks in said support means, and said cover having a plurality of holes aligned with the entrance ends of the jacks, said jack panel adapted to receive insulated plugs which plugs are shaped to fit through the holes in the cover and extend into the entrance ends of the jacks.
Claim 3
Dependent Claim
96 words
The apparatus of claim 1 in which said jack support means comprise a plurality of electrically insulating jack supports, each of said jack supports adapted to mount a pair of said jacks therein in generally parallel positions with the entrance ends of the jacks accessible through holes in the top of said support means, and each of said supports including first and second cavities with the first cavity holding one of the jacks and the second cavity holding the other jack, the cavities opening in opposite directions to provide maximum electrical isolation between the two jacks.
Claim 4
Dependent Claim
20 words
The apparatus of claim 2 in which the entrance ends of the jacks are mounted in recesses in the supports.
Claim 5
Dependent Claim
30 words
The apparatus of claim 2 including a riser formed on each of said supports at a location between the entrance ends of said jacks to increase the electrical isolation therebetween.
Claim 6
Dependent Claim
20 words
The apparatus of claim 3 in which the entrance ends of the jacks are mounted in recesses in the supports.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |