LARS PEDERSEN
Pilots at Laguna Ave, Davis, CA
License number
California A2866031
Issued Date
Apr 2015
Expiration Date
Apr 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
3427 Laguna Ave, Davis, CA 95618
Professional information
Centralizer Apparatus
US Patent:
8245779, Aug 21, 2012
Filed:
Aug 7, 2009
Appl. No.:
12/537989
Inventors:
John Lemke - Sacramento CA, US
Lars Pedersen - Davis CA, US
Lars Pedersen - Davis CA, US
Assignee:
Geodaq, Inc. - Sacramento CA
International Classification:
E21B 17/10, E21B 47/022
US Classification:
1662416, 1753253
Abstract:
A centralizer for an instrument such as an in-place inclinometer is described. The centralizer has a clamp with an inner receptacle configured for coupling to the instrument housing, and a plurality of elongate fingers extending from the clamp that center the instrument in the casing. The fingers carry rollers that fit into grooves in the instrument casing. The fingers are arcuate and provide a spring-like contact force that causes the rollers to abut the instrument casing and stabilize the instrument.