A device for crimping a radially expandable and collapsible prosthetic valve comprises a coiled wire frame having a longitudinal opening extending from a proximal end to a distal end thereof. The opening has a first state and a second state, the opening in the first state having a first diameter dimensioned to receive the prosthetic valve in an expanded or partially crimped configuration therein, and the opening in the second state having a second diameter dimensioned to receive the prosthetic valve in a crimped configuration. The coiled wire frame has a first end coupled to a first member and a second end coupled to a second member. The first member is movable relative to the second member to convert the coiled wire frame from the first state to the second state.

A spinner wrench for use on a drilling rig is provided. In some embodiments, the wrench can comprise three or more spinning rollers that can be disposed around a tubular. The three or more rollers can be connected to three or more hydraulic rams. In some embodiments, each ram can be connected to a single roller and the axis of the ram can be in a plane perpendicular to the pipe axis but not intersecting the pipe axis. For improved performance during make-up, in planar view, each ram axis can be offset to a counterclockwise direction around the drill pipe axis. For improved performance during break-out, in planar view, each ram axis can be offset to the clockwise direction. In some embodiments, the three or more rollers can be disposed around the drilling pipe or other tubular by a main body and one or more latching bodies.

A pump body of a high-pressure pump includes a pressure chamber formed in a deep portion of a cylinder. The pump body closes the pressure chamber on a side opposite to a plunger. The plunger reciprocates within the cylinder to vary a volume of the pressure chamber. The large-diameter portion provided at an end of the plunger on a side protruding to the pressure chamber has an outside diameter larger than an inside diameter of the cylinder and smaller than an inside diameter of the pressure chamber. In this case, the large-diameter portion is engaged with a step portion between the cylinder and the pressure chamber in a state before attachment of the high-pressure pump to an internal combustion engine. Accordingly, separation of the plunger from the cylinder is avoidable.

Surgical handheld devices are essentially made up of a device body or main body and of a tubular shaft. In the production of known surgical devices, the tubular shafts are welded to the device bodies. A large number of very complex work steps are necessary for this purpose. On account of the high quality demands placed on surgical handheld devices in respect of mechanical stability and sterility, the weld seam has to meet the most stringent requirements. The invention makes available a method for producing a surgical handheld device, which can be used particularly easily and reliably. This is achieved by the fact that at least one device body (18) and at least one tubular shaft (13) of a surgical handheld device are connected to each other with form-fit engagement by hydroforming.

Surgical handheld devices are essentially made up of a device body or main body and of a tubular shaft. In the production of known surgical devices, the tubular shafts are welded to the device bodies. A large number of very complex work steps are necessary for this purpose. On account of the high quality demands placed on surgical handheld devices in respect of mechanical stability and sterility, the weld seam has to meet the most stringent requirements. The invention makes available a method for producing a surgical handheld device, which can be used particularly easily and reliably. This is achieved by the fact that at least one device body (18) and at least one tubular shaft (13) of a surgical handheld device are connected to each other with form-fit engagement by hydroforming.

A method for coupling a fitting to a tubing end includes pressing a collar over the outer surface of the tubing until the strain on the collar in the hoop direction is at a predetermined level, or pressing a collar with a predetermined axial load.

A method for coupling a fitting to a tubing end includes pressing a collar over the outer surface of the tubing until the strain on the collar in the hoop direction is at a predetermined level, or pressing a collar with a predetermined axial load.

A modified lug press and use thereof is described. The modified lug press includes a press and a cartridge. The press includes a drive which, when activated, crimps a lug, positioned on a die, to a wire. A cartridge holds the given lug and at least one additional lug, and successively aligns the given lug and the at least one next lug for insertion onto the die for crimping by the press. The cartridge includes a left rail, with a track therein, at least one middle rail, and a right rail. Distances between the rails may be adjustable. A drive motor, when activated, successively pushes lugs onto the die. A lug separator permits one lug to be pushed on the die at any given time. A lug placement device inhibit lateral lug movement during wire insertion and crimping operations.

A machine used in tube fabrication, wherein the machine imparts a locating feature near an end of a tube when the tube is located between a clamp die and a bend die of the machine by using a crimp die to form detents and bulges in the tube. The locating feature enables the tube to be located in a larger tube.

A mobile pipe fusion assembly system includes a fusion machine skid comprising a flat cross-sectional area whereon a pipe fusion machine rests, a forward skid comprising a flat cross-sectional area whereon a first pipe stand rests, and a rear skid comprising a flat cross-sectional area whereon a second pipe stand rests. The fusion machine skid is coupled to the forward skid by a first coupling. The fusion machine skid is coupled to the rear skid by a second coupling. The system is configured such that when the forward skid is pulled along a length of the pipe, the forward skid pulls the fusion machine skid via the first coupling and the fusion machine skid pulls the rear skid via the second coupling.