Compact telephone line test apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 24, 1990
Grant Date -
N/A
app pub date -
Sep 27, 1988
filing date -
Sep 27, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telephone line test apparatus is provided for determining the operational status of a telephone line. The apparatus has a cylindrical and compact housing structure, a light emitting diode, a resistor, an electrical interface, and an elongated cable with a terminal modular connector. The electrical interface is disposed within the housing structure and connects the light emitting diode and the resistor in series. The modular connector is communicatively connected to the electrical interface and flexible extends from the housing structure for easy and reliable use. The light emitting diode is a tri-state LED which indicates the presence of D.C. voltage and polarity, as well as A.C. voltage.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully