Geometrical instruments – Indicator of direction of force traversing natural media – With viewing aid
Reexamination Certificate
2001-08-01
2003-04-15
Gutierrez, Diego (Department: 2859)
Geometrical instruments
Indicator of direction of force traversing natural media
With viewing aid
C033S354000, C033S379000, C116S211000
Reexamination Certificate
active
06546638
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to an apparatus and method for determining an individual's orientation with respect to the Earth when buried in snow or mud.
BACKGROUND OF THE INVENTION
At present, persons buried in the snow or elsewhere are frequently unable to determine the direction of the surface. Avalanche victims have been found after having dug through ten feet of snow parallel to the surface. Other victims have been found deceased after having obviously been conscious for several hours while buried. The only existing method for determining the direction of the surface is to expectorate saliva and try to determine which direction the saliva moves as a result of gravity.
SUMMARY OF THE INVENTION
The present invention provides a self-illuminated attitude indicator optimized for use by persons buried in snow or mud. A further feature of the invention is the method of using a small self-illuminating attitude indicator to determine the upward direction, thereby permitting the buried person to most quickly extricate themselves from the snow or mud. An optional feature of the present invention is the use of a liquid which also may be used as a dye marker in snow or ice.
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Christensen O'Connor Johnson & Kindness PLLC
Guadalupe Yaritza
Gutierrez Diego
LandOfFree
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