US4091435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone protector module having heat coil fired flag indicator
Assignee: North Hills Signal Processing Corp
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Filing: 1976-12-27
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Granted: 1978-05-23
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Expires: 1996-12-27
Abstract
Abstract A telephone protector module is provided with indicating means actuated by the actuation of heat sensitive means within the module to provide a visual indication of such actuation externally of the module casing. The indicating means is in the form of an elongated member secured at one end thereof to a moving member of the heat sensitive means. The free end of the indicating member projects through an opening in the end of the casing element, and normally lies flush with the outer surface thereof. Upon actuation of the heat sensitive means, the free end extends outwardly of said surface to be immediately visible to service personnel.
Inventors
- 👤 Omprakash Ahuja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:03
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/14; H01T1/12; H01T4/00; H01T4/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
In a telephone protector module including a casing element, a plurality of contacts for interconnection with an individual telephone subscriber line, and heat-sensitive means for grounding said individual line upon the occurrence of excessive current and/or voltage surges, said heat sensitive means including at least one component movable within said casing element upon actuation, the improvement comprising: means for indicating the actuation of said heat-sensitive element externally of said casing element, said means including an elongated length of wire having a colored insulative cover which contrasts with the color of said casing element, a first end of said wire being secured to said one component, and a second end of said wire projecting through an opening in said casing element; said second end lying normally flush with the outer surface of said element bordering said opening therein, and projecting outwardly of said surface upon actuation of said heat-sensitive means.
Claim 2
Dependent Claim
149 words
In a telephone protector module including a casing element, a plurality of contacts for interconnection with an individual telephone subscriber line, and heat-sensitive means for grounding said individual line upon the occurrence of excessive current and/or voltage surges, said heat sensitive means including at least one component movable within said casing element upon actuation, the improvement comprising: means for indicating the actuation of said heat-sensitive element externally of said casing element, said means including an elongated length of wire having a colored insulative cover which contrasts with the color of said casing element, a first end of said wire being secured to said one component, and a second end of said wire projecting through an opening in said casing element; said second end lying normally flush with the outer surface of said element bordering said opening therein, and projecting outwardly of said surface upon actuation of said heat-sensitive means.
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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |