Maintenance termination units
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 23, 1995
Grant Date -
N/A
app pub date -
Sep 10, 1993
filing date -
Nov 5, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention describes a maintenance termination unit often used in telephone lines and particularly the triggering circuit for use in such units. The triggering circuit uses two complementary transistors Q1, Q2 and a diode Z1 along with a resistor R and capacitor C2 in specific electrical connection sequence to provide for 'turn-on' by either reaching the preset 'turn on' voltage or by having a significantly high rate of voltage rise.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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