Abstract: An asymmetric release configuration including a projection, a recess receptive to the projection the recess having a first shoulder that when brought into contact with the projection in a first direction loads the projection in a first way that results in a first release threshold, and a second shoulder that when brought into contact with the projection in a second direction loads the projection in a second way that results in a second release threshold, the second release threshold being different than the first release threshold. A method for operating a borehole including running a configuration into a borehole to a target depth, resisting a load on the configuration in a first direction to a first release threshold, and resisting a load in another direction to a second release threshold different than the first release threshold.

Abstract: Apparatus and methods are provided for a self-contained tension control system. An example self-contained tension control system can include a brake system configured to provide tension friction to a web, a tension transducer to provide tension information indicative of tension of the web, a controller configured to receive the tension information, to compare the tension information to set point information, and to provide a command signal to the brake system, and an enclosure configured to enclose the brake system, the tension transducer, and the controller, the enclosure including a first web opening and a second web opening configured to allow the web to enter the enclosure and to pass through the enclosure to equipment downstream of the self-contained tension control system.

Abstract: In one aspect, a seal apparatus for use with a mandrel is disclosed that in one non-limiting embodiment contains a seal housing disposed about the mandrel, wherein the seal housing is spaced apart from the mandrel to form a seal gap, a seal member disposed between the seal housing and the mandrel, wherein the seal member is bonded to the seal housing and the seal member is formed from a first material, and a seal support disposed between the seal housing and the mandrel, wherein the seal support is formed from a second material, wherein the second material is stiffer than the first material, and the seal support extends across the seal gap in response to an energizing force applied to the seal support.

Abstract: Apparatus and methods are provided for a self-contained tension control system. An example self-contained tension control system can include a brake system configured to provide tension friction to a web, a tension transducer to provide tension information indicative of tension of the web, a controller configured to receive the tension information, to compare the tension information to set point information, and to provide a command signal to the brake system, and an enclosure configured to enclose the brake system, the tension transducer, and the controller, the enclosure including a first web opening and a second web opening configured to allow the web to enter the enclosure and to pass through the enclosure to equipment downstream of the self-contained tension control system.

Abstract: Apparatus and methods for web tension control are provided. In an example, an apparatus can include a tension beam configured to deflect in a predictive manner when under a force load, a first shaft directly coupled to the tension beam and configured to mechanically interface with a torque device, a second shaft directly coupled to the tension beam opposite the first shaft and configured to interface with a structural member of a web machine, and a strain gauge coupled to the tension beam and configured to provide an electrical representation of the force load.

Abstract: Apparatus and methods for web tension control are provided. In an example, an apparatus can include a tension beam configured to deflect in a predictive manner when under a force load, a first shaft directly coupled to the tension beam and configured to mechanically interface with a torque device, a second shaft directly coupled to the tension beam opposite the first shaft and configured to interface with a structural member of a web machine, and a strain gauge coupled to the tension beam and configured to provide an electrical representation of the force load.

Abstract: An x-ray focusing device generally includes a slide pivotable about a pivot point defined at a forward end thereof, a rail unit fixed with respect to the pivotable slide, a forward crystal for focusing x-rays disposed at the forward end of the pivotable slide and a rearward crystal for focusing x-rays movably coupled to the pivotable slide and the fixed rail unit at a distance rearward from the forward crystal. The forward and rearward crystals define reciprocal angles of incidence with respect to the pivot point, wherein pivoting of the slide about the pivot point changes the incidence angles of the forward and rearward crystals while simultaneously changing the distance between the forward and rearward crystals.

Abstract: An x-ray focusing device generally includes a slide pivotable about a pivot point defined at a forward end thereof, a rail unit fixed with respect to the pivotable slide, a forward crystal for focusing x-rays disposed at the forward end of the pivotable slide and a rearward crystal for focusing x-rays movably coupled to the pivotable slide and the fixed rail unit at a distance rearward from the forward crystal. The forward and rearward crystals define reciprocal angles of incidence with respect to the pivot point, wherein pivoting of the slide about the pivot point changes the incidence angles of the forward and rearward crystals while simultaneously changing the distance between the forward and rearward crystals.