Howard L Sleeper

US Patent:

6367341, Apr 9, 2002

Filed:

Apr 17, 2000

Appl. No.:

09/548956

Inventors:

Howard Lester Sleeper - Boulder Creek CA
Robert Lynn Gerber - Ridgecrest CA
Larry Dean Sawyer - Ridgecrest CA
Theresa M. Atienzamoore - Ridgecrest CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

G01M 1900

US Classification:

738665, 73167, 33832

Abstract:

An apparatus for positioning an object in a remote location with a high degree of precision, insuring stability and repeatability for discrete sampling to be taken at intervals between each sampling on the order of years. A preferred embodiment of the present invention positions an optical probe in a propellant bore hole. The present invention measures and records the exact position of an optical probe within the bore hole, so that exact position may be repeated for future measurements to be taken over the lifetime of the system.