Illuminated caliper instrument
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 12, 2005
Grant Date -
Jan 2, 2003
app pub date -
Jun 25, 2002
filing date -
Jun 27, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An illuminated caliper device includes a caliper assembly having first and second caliper legs each having a pointed tip and a pivot end. A pivot support and first and second pivot elements pivotally connects the pivot ends of the first and second caliper legs to the pivot support. A battery housing attached to the pivot support contains a battery. First and second light emitting diodes are coupled by a switch mounted on the battery housing to first and second terminals of the battery and produced light that is directed to areas of the surface to be measured by pointed tips of the legs. The intensity and color of light emitted by the first light emitting diode are such as to sufficiently illuminate the surface under low ambient illumination conditions without disrupting acquired night vision of a user.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- G01B Class
- 2.91 % this patent is cited more than
- 20 Age
