Abstract: A wellbore system includes an upper head and a lower head coupled to the upper head by one or more fasteners. The wellbore system also includes a seal ring positioned within a seal pocket to engage the upper head to form a first seal interface between the upper head and the seal ring. The wellbore system includes a hanger arranged within a bore. The wellbore system includes a packoff positioned between the hanger and the lower head. The wellbore system includes one or more lock screws to apply a downward force to the packoff to establish a second seal interface between the packoff and the seal ring and a third seal interface between the packoff and the hanger.

Abstract: A method of manufacturing a hybrid insulating panel includes providing a mold of a frame, dispensing a first foam material in a liquid phase in the mold, and placing a beam in the mold. The method includes curing the first foam material to form an integrated frame, in which the integrated frame includes the beam at least partially surrounded by the first foam. Further, the method includes dispensing a second foam material into a panel cavity to form a panel body. The panel cavity is at least partially defined by a side of the integrated frame. The method includes curing the second foam material to form a panel body, wherein the panel body is secured to the integrated frame.

Abstract: A method of manufacturing a hybrid insulating panel includes providing a mold of a frame, dispensing a first foam material in a liquid phase in the mold, and placing a beam in the mold. The method includes curing the first foam material to form an integrated frame, in which the integrated frame includes the beam at least partially surrounded by the first foam. Further, the method includes dispensing a second foam material into a panel cavity to form a panel body. The panel cavity is at least partially defined by a side of the integrated frame. The method includes curing the second foam material to form a panel body, wherein the panel body is secured to the integrated frame.

Abstract: An air bag on a surface is gathered by opposing faces of first and second gathering elements that are moved together from opposing edges of the air bag, and which are adapted so as to limit a height of at least one associated edge portion of the air bag to be less than a height proximate to a center of the resulting gathered air bag. In one aspect, a surface is extended from at least one face, or at least one face is shaped so as to limit the edge portion height upon gathering. In another aspect, at least one gathering element incorporates a holder adapted to hold an edge of the air bag during gathering.

Abstract: A strut having a reversible fulcrum, which can be changed, from a left strut to a right strut, for using in brake beams of the type comprising; a compression member, a “V” shaped tension member having a central apex coupled to the ends of the compression member; a brake shoe linked to the each end of the compression member; and a strut, wherein the strut having a reversible fulcrum comprising: a fulcrum body having a first end and a second end, a central slot passing through a central portion of the fulcrum body at a side portion thereof and an off-center pinhole passing through the fulcrum body at a central portion of a front portion of the fulcrum body; a hollow bell joint, having a dome rotary coupled to a central portion of the tension member and a tubular open end at which the first end of the fulcrum body is coupled; and a crown joint having a first end including an internal annular border, rotary receiving the second end of the fulcrum body, and a second end having two opposite holding skir