Industry Patents
Patent: 7168974
Three Phase Lighted Plugs and Connectors For Indicating The Absence of at Least One Phase
(Click image for PDF of full patent)
| Patent Number: |
7168974 |
| Title: |
Three Phase Lighted Plugs and Connectors For Indicating The Absence of at Least One Phase |
| Abstract: |
Indicator means located in a plug or connector indicates when at least one
phase of an AC multi-phase voltage is absent. The indicator means can be
any one of a variety of light sources and/or an audible generator. The
light source can be, for example, an LED, an illuminating ring visible
from any angle around the body of the plug or connector, etc. An opaque
barrier can be used to totally or partially block the light from the
light source when light from the light indicator may be objectionable
such as during a stage lighting application. The indicator means for
detecting the absence of at least one phase can be on a printed circuit
board connected to receive power from the conductors in the plug or
connector.
|
| Country of Issue: |
US |
| First Named Inventor: |
Feldman, Eckel, Laurent, Bonasia |
| Assignee: |
Leviton Manufacturing |
| Continuation or Divisional of: |
|
| International Classification: |
H01R 3/00 |
| US Classification: |
439/488 |
| Issue Date: |
01-30-2007 |
| Filing Date: |
03-31-2005 |
| Application : |
11/094161 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7168974 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7168974 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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