Class / Patent application number | Description | Number of patent applications / Date published |
156143000 | Helical wire or plural ring reinforced flexible tube making | 12 |
20080302467 | Pressure Resistant Vibration Absorbing Hose - A pressure resistant vibration absorbing hose has a hose body including an inner surface rubber layer, a reinforcing layer and an outer surface rubber layer and a joint fitting including a rigid insert pipe and a socket fitting. The joint fitting is attached to a swaged portion of an axial end portion of the hose body by securely swaging the socket fitting thereto. The inner surface rubber layer is formed by molding such that a swaged portion thereof is larger than a main portion thereof in diameter and a wall thickness of the swaged portion is equal to or larger than a wall thickness of the main portion, and after that, the reinforcing layer and the outer surface rubber layer are laminated to construct the hose body. | 12-11-2008 |
20090032178 | Multi-layered ceramic tube for fuel containment barrier and other applications in nuclear and fossil power plants - A multi-layered ceramic tube having an inner layer of high purity beta phase stoichiometric silicon carbide, a central composite layer of continuous beta phase stoichiometric silicon carbide fibers, and an outer layer of fine-grained silicon carbide. The ceramic tube is particularly suited for use as cladding for a fuel rod used in a power plant or reactor. The ceramic tube has a desirable combination of high initial crack resistance, stiffness, ultimate strength, and impact and thermal shock resistance. | 02-05-2009 |
20090071590 | METHODS AND MANUFACTURING OF A COMPOSITE SHOCK-ABSORBING STRUCTURE THEREOF - A composite shock-absorbing material comprised of kernel material, winding material, and a resin layer, and where the kernel material is spiraled by the winding material. A resin layer covers both the surfaces of both the kernel material and the winding material. Hence, the composite shock-absorbing material of the present invention is formed. A method of forming the composite shock-absorbing material includes providing kernel material and forming a winding material spiraling the kernel material and then forming a resin layer on the surfaces of the kernel material and the winding material. | 03-19-2009 |
20090218037 | Piping - The invention relates to piping comprising a portion wherein the centreline of the portion follows a substantially helical path, wherein the amplitude of the helix is less than or equal to one half of the internal diameter of the piping. When fluid flows in such piping, it is made to swirl. This provides a number of advantages, such as improved in-plane mixing of the fluid, enhanced uniformity of residence time, and so on. The invention also extends to various methods of making such piping. | 09-03-2009 |
20100163159 | LARGE DIAMETER DELIVERY CATHETER/SHEATH - A large diameter, flexible, kink-resistant, delivery catheter or sheath for percutaneous delivery of a contained and implantable medical device in the vasculature of a patient. The delivery catheter or sheath includes a reinforcement such as a flat wire coil with uniform spacing between the turns, which is compression fitted about an inner, lubricous PTFE tube. The delivery catheter or sheath further includes an outer tube of a heat formable polyamide material which is heat formed and compressed through the spaces between the turns of the wire coil to mechanically connect to a roughened outer surface of the inner tube. A polymeric radiopaque marker tube may be positioned at the distal end of the coil and between the inner and outer tubes for radiographic visualization. A side port may also be positioned thereat for the infusion of contrast media. | 07-01-2010 |
20110000604 | CHECKER BALLOON WINDING MACHINE - A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filaments the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass. | 01-06-2011 |
20110005661 | Medical Tubing Having Variable Characteristics and Method of Making Same - The invention primarily is directed to a medical tubing adapted for insertion into a body tissue or cavity and method of manufacturing different variations of the tubing along a length of the tubing. The tubing comprises a plurality of individual, discrete, generally ring-shaped elements arranged in series and fused or bonded together forming a continuous tubular structure. The ring-shaped elements may be formed of a thermoplastic or a thermoset material. The ring-shaped elements may include plastic rings, metallic rings, un-reinforced plastic rings and/or metal reinforced plastic rings assembled along the length of the tubular structure to provide variable flexibility and kink-resistance. The tubular structure may have a cross-section of any geometric shape and it may be bent, twisted or curved without kinking. The ring-shaped elements may have different flexural modulus. The ring-shaped elements may include a combination of flexible and rigid ring-shaped elements assembled along different portions or sections of the tubular structure. The ring-shaped elements may be metallic and may be bonded with a resilient, flexible elastomeric adhesive, wherein the ring-shaped elements may have different lengths and may be fused closer or further apart to one another depending on the characteristics of a portion or section of the tubing. In another aspect of the invention, the medical tubing may further comprise a secondary lumen and a pull wire to control the tubular structure. The ring-shaped elements may be truncated to provide a bending bias. In another aspect of the invention, the ring-shaped elements may vary in diameter and/or composition in different portions or sections of the tubular structure. In yet another aspect of the invention, some of the ring-shaped elements may be radiopaque, or the ring-shaped elements may comprise of different colors to operate as indicators along the tubular structure. | 01-13-2011 |
20110290404 | METHODS OF MANUFACTURING LINEARLY EXPANDABLE URETERAL STENTS - A method includes forming an elongated member having a tubular shape. The elongated member includes a sidewall that defines a lumen. A spiral-shaped opening is formed in the sidewall such that the elongated member is configured to move between a retracted configuration and an expanded configuration along a longitudinal axis of the lumen. In some embodiments, the method further includes forming a distal retention structure. The distal retention structure can be disposed at a distal end of the elongated member and can define a lumen in fluid communication with the lumen defined by the sidewall of the elongated member. | 12-01-2011 |
20120285607 | METHODS OF MANUFACTURING LINEARLY EXPANDABLE URETERAL STENTS - A method includes forming an elongated member having a tubular shape. The elongated member includes a sidewall that defines a lumen. A spiral-shaped opening is formed in the sidewall such that the elongated member is configured to move between a retracted configuration and an expanded configuration along a longitudinal axis of the lumen. In some embodiments, the method further includes forming a distal retention structure. The distal retention structure can be disposed at a distal end of the elongated member and can define a lumen in fluid communication with the lumen defined by the sidewall of the elongated member. | 11-15-2012 |
20130276959 | Light Weight Thermoplastic Flex Foam and Hybrid Duct System - An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam. | 10-24-2013 |
156144000 | Assembling preformed helical coil or rings with separate tube | 2 |
20100319836 | POLYMER PROSTHESIS - A polymer prosthesis with lumen and an axial length and having in a pre-delivery condition a plurality of relatively stiff stenting segments spaced from each other along the length of the prosthesis, the spaces between the relatively stiff stenting segments of a first polymer being bridged by relatively flexible linking segments of a second polymer, different from the first, the relatively stiff stenting segments and the relatively flexible linking segments being alternately arranged along the length of the prosthesis. | 12-23-2010 |
20110220270 | METHOD FOR PRODUCING ENDOSCOPE FLEXIBLE TUBE - A method for producing an endoscope flexible tube comprising the steps of:
| 09-15-2011 |