Embodiments of the invention include apparatus and methods for coating drug coated medical devices. In an embodiment, the invention includes a coating apparatus including a coating application unit. The coating application unit can include a fluid applicator having a lengthwise axis and a width. The fluid applicator can include a tip comprising a first face across the width of the fluid applicator. The first face of the fluid applicator can be oriented at an angle of from about 15 to about 75 degrees with respect to the lengthwise axis of the fluid applicator. The fluid applicator can define a second face intersecting the first face. The coating apparatus can further include a rotation mechanism and an axial motion mechanism. Other embodiments are also included herein.

A pipe conditioning tool comprising a drive unit to move the tool along a pipe and a work head rotatable about an axis of the pipe to condition a surface of the pipe, the drive unit includes a frame extending to opposite sides of the pipe, the frame having legs extending radially beyond the work head to provide support for the tool upon removal from said pipe.

[Problem]

To provide a method for spraying a chemical solution, including: spraying the chemical solution onto a surface of a dryer roller with a nozzle device reciprocated in the width direction of the dryer roller rotating at a high speed, whereby a sufficient amount of the chemical solution can be remained on the surface of the dryer roller.

[Solution]

The present invention is directed to a method for spraying a chemical solution, including: spraying the chemical solution onto a dryer roller by a nozzle device with the nozzle device reciprocated along a rail extended in the width direction of the dryer roller, in a state that the dryer roller, for guiding wet paper, is being rotated, in a dry part of a paper-making machine, wherein a time T required for the nozzle device to travel one-way is set as 0.4 to 3.0 minutes; a rotational speed Vd of the dryer roller is set as not less than 100 times/min; the number of contacts N that a point Q on the dryer roller surface makes contact with the wet paper during the time T is set as 50 to 400 times; the time T, the rotational speed Vd, and the number of contacts N satisfy the relationship of N=T*Vd; and the total amount of the sprayed chemical solution is set as 0.3 to 500 mg/m.sup.2 as an effective component amount.

Systems and methods are provided for securement of parts. One embodiment is a method for securing a part during fabrication. The method includes forming an interference fit between a pin and a wall defining a hole, supporting a weight of the part with the interference fit, and rotating the part around an axis of the part while the weight of the part is supported.

[Problem]

To provide a method for spraying a chemical solution, including: spraying the chemical solution onto a surface of a dryer roller with a nozzle device reciprocated in the width direction of the dryer roller rotating at a high speed, whereby a sufficient amount of the chemical solution can be remained on the surface of the dryer roller.

[Solution]

The present invention is directed to a method for spraying a chemical solution, including: spraying the chemical solution onto a dryer roller by two nozzle devices disposed at a certain interval therebetween with the two nozzle devices each reciprocated along a rail extended in the width direction of the dryer roller, in a state that the dryer roller, for guiding wet paper, is being rotated, in a dry part of a paper-making machine, wherein a time T required for the two nozzle devices each to travel one-way is set as 0.2 to 1.5 minutes; a rotational speed Vd of the dryer roller is set as not less than 100 times/min; the number of contacts N that a point Q on the dryer roller surface makes contact with the wet paper during the time T is set as 30 to 250 times; the time T, the rotational speed Vd, and the number of contacts N satisfy the relationship of N=T*Vd; and the total amount of the sprayed chemical solution is set as 0.3 to 500 mg/m.sup.2 as an effective component amount.

Provided is a coolant spray module system for a heat treatment metal product, comprising: a first coolant spray module (1), wherein the first coolant spray module (1) comprises a first module housing (10), a first module cover (20), and a first nozzle (30), wherein the first nozzle (30) is fixed between the first module housing (10) and the first module cover (20) by first nozzle fixing blocks (13) and second nozzle fixing blocks (23), wherein the coolant spray module system sprays the coolant onto the heat treatment metal product to quench and clean the heat treatment metal product.

Provided is a turning device for turning pipes with a large diameter about their longitudinal axis. The turning device includes a base body and two supporting devices that are arranged on the base body. Each supporting device includes a pedestal and at least one rocker element that is pivotably mounted in a receptacle of the pedestal. The pedestal is connected to the base body. The rocker elements each include one or more rollers. The turning device adapts to different pipe diameters as a result of the rocker elements, so that no exchanging of the turning device is necessary and multiple turning devices do not need to be kept on hand for different pipe diameters.

A flame coating machine for coating field joints of a pipeline has a flame spray system having two flame spray units configured for heating and/or coating with a thermoplastic polymer an annular junction portion and two annular end portions of an existing coating delimiting the annular junction portion; a control system having two temperature sensors configured for acquiring temperature values along the surface collectively defined by the annular junction portion and the annular end portions, and a control unit configured for actuating the flame spray unit in a polymer flame spraying mode or in a flame heating mode as a function of the detected temperature values and at least one threshold value.

A coating apparatus for coating the balloon portion of a balloon catheter is described. The coating apparatus includes a rotatable member in which the catheter portion of the balloon catheter is mounted and fixed, and which causes rotation of the balloon catheter. The apparatus also includes a support member in which the distal tip of the catheter is inserted and free to rotate; and a spray nozzle directing sprayed material on the balloon surface. The inventive configuration of the coating apparatus allows the balloon catheter to be rotated along its axis with insubstantial or no wobble, which significantly improves the quality of the coating applied to the surface of the balloon.

An annular nozzle assembly includes an inlet tube, an annular tube, at least three first spray nozzles, and a plurality of separating vanes. The annular tube connects to the inlet tube. The first spray nozzles are fixed to the annular tube and are directed to spray inwardly and in a first vertical direction and are equally spaced from each other. The separating vanes are disposed within the annular tube and extend along a length thereof and define a flow channel for each first spray nozzle.