Abstract: A concrete structural element is provided that includes a concrete matrix; a steel reinforcing structure embedded in said matrix; at least first and second attitude sensors at a distance from one another in a direction, embedded in said matrix and fixed to said reinforcing structure; and a processing circuit configured to recover attitude measurements supplied by each attitude sensor and configured to compute a deformation of said structural element relative to said direction as a function of the attitude measurements recovered.

Abstract: A concrete structural element is provided that includes a concrete matrix; a steel reinforcing structure embedded in said matrix; at least first and second attitude sensors at a distance from one another in a direction, embedded in said matrix and fixed to said reinforcing structure; and a processing circuit configured to recover attitude measurements supplied by each attitude sensor and configured to compute a deformation of said structural element relative to said direction as a function of the attitude measurements recovered.

Abstract: The present invention recites a downhole motor and method of manufacture wherein a mandrel having an outer geometry that is complimentary to a desired inner geometry for the stator is provided. A flexible sleeve is provided over the mandrel and the flexible sleeve and the mandrel are provided into a mold. Additionally, a reinforcing material is introduced into the mold to fill space between the flexible sleeve and the mold. Said material is then solidified to bond the reinforcing material and the flexible sleeve. The solidified reinforcing material and flexible sleeve are then removed from the mold such that a stator insert is fabricated.

Abstract: A progressing cavity rotor facilitates pumping applications in progressing cavity pumping systems by ensuring a desired shape of the rotor. A resilient layer is placed over a rotor core to create a composite progressing cavity pump system rotor. Generally, the rotor core is formed from a harder material, such as a metallic material. Additionally, the composite rotor is placed in a mold and subjected to a molding treatment designed to enhance bonding of the resilient layer and formation of a desired exterior surface shape of the resilient layer.

Abstract: The present invention recites a downhole motor and method of fabricating the same, wherein the method for fabricating a stator for a downhole motor includes the providing of a mandrel having an outer geometry that is complimentary to a desired inner geometry for the stator and the application of a flexible sleeve over the mandrel. Additionally, a stator tube having an interior surface is provided and a bonding agent is applied to the interior surface of the stator tube. The flexible sleeve and the mandrel are placed in the stator tube and a reinforcing material is introduced into the stator tube to fill space between the flexible sleeve and the stator tube. The reinforcing material is solidified and serves to bond the reinforcing material to the flexible sleeve and the stator tube.

Abstract: The present invention recites a downhole motor and method of manufacture wherein a mandrel having an outer geometry that is complimentary to a desired inner geometry for the stator is provided. A flexible sleeve is provided over the mandrel and the flexible sleeve and the mandrel are provided into a mold. Additionally, a reinforcing material is introduced into the mold to fill space between the flexible sleeve and the mold. Said material is then solidified to bond the reinforcing material and the flexible sleeve. The solidified reinforcing material and flexible sleeve are then removed from the mold such that a stator insert is fabricated.