Centralizer apparatus
AssigneeGeodaq, Inc.
InventorsJohn Lemke, Lars Pedersen
Life of this patent
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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.
Claims20
A centralizer apparatus, comprising:
- a clamp having an inner receptacle configured for coupling to an instrument housing;
- and
- a plurality of longitudinally aligned elongate fingers extending from the clamp;
- each said finger being convexly arcuate and carrying a roller having a contact surface facing radially outward in relation to a longitudinal centerline through the apparatus;
- each said finger having a tip with a rounded inner surface.
A centralizer apparatus, comprising:
- a clamp having an inner receptacle configured for coupling to an instrument housing;
- said clamp comprising a pair of separable clamp members;
- and
- a plurality of longitudinally aligned elongate fingers extending from the clamp;
- each said finger being convexly arcuate and carrying a roller having a contact surface facing radially outward in relation to a longitudinal centerline through the apparatus;
- each said finger having a tip with a rounded inner surface.
A centralizer apparatus for an inclinometer, comprising:
- a clamp having an inner receptacle configured for coupling to an inclinometer housing;
- said clamp comprising a pair of separable clamp members;
- and
- a pair of longitudinally aligned elongate fingers extending from each clamp member;
- each said finger being convexly arcuate and carrying a roller having a contact surface facing radially outward in relation to a longitudinal centerline through the apparatus;
- each said roller having a pair of tapered sides;
- each said finger including a well configured for receiving an associated roller with a snap-in coupling;
- each said finger having a tip with a rounded inner surface;
- said clamp including a cable channel.
Dependencies are inferred from the claim text.