摘要:
A device and method for the manufacture of medical devices, specifically, endovascular grafts, or sections thereof. Layers of fusible material are disposed upon a shape forming member and seams formed between the layers in a configuration that can produce inflatable channels in desired portions of the graft. After creation of the seams, the fusible material of the inflatable channels may be fixed while the channels are in an expanded state. A five axis robotic seam forming apparatus may be used to create the seams in the layers of fusible material.
摘要:
The invention relates to a method for verifying the leakproofness of a container used for accommodating preferably liquid media as well as a plastic container that is composed of several segments (22a, 24). The invention further relates to a method for producing a container from several segments and a container comprising a closed barrier layer. The disclosed container is composed of at least two segments (22a, 24) which are joined together circumferentially at the edges of the faces thereof by means of one respective welded connection (16, 17) such that an enclosed space is formed. An inner pressure that is different from the ambient pressure is applied within the enclosed space while a change in pressure is monitored.
摘要:
A method of connecting a plastic workpiece to a further workpiece and a device for carrying out the method are shown and described. The object of providing a method with which a positive-locking connection between a plastic workpiece and a further workpiece can be produced in a short time and without considerable outlay in terms of apparatus is achieved by a method comprising the following steps: providing a plastic workpiece and a further workpiece, placing the further workpiece against the plastic workpiece, providing a connecting element on a surface of the plastic workpiece, this surface being opposite the surface against which the further workpiece bears, producing a recess in the further workpiece, this recess being provided on the surface bearing against the plastic workpiece, heating the connecting element, so that the material of the connecting element is plasticized, and pressing plasticized material into the recess.
摘要:
A method of connecting a plastic workpiece to a further workpiece and a device for carrying out the method are shown and described. The object of providing a method with which a positive-locking connection between a plastic workpiece and a further workpiece can be produced in a short time and without considerable outlay in terms of apparatus is achieved by a method comprising the following steps: providing a plastic workpiece and a further workpiece, placing the further workpiece against the plastic workpiece, providing a connecting element on a surface of the plastic workpiece, this surface being opposite the surface against which the further workpiece bears, producing a recess in the further workpiece, this recess being provided on the surface bearing against the plastic workpiece, heating the connecting element, so that the material of the connecting element is plasticized, and pressing plasticized material into the recess.
摘要:
A joint and method for producing a joint in an endovascular graft. In one embodiment, a flap of a flexible material portion of an endovascular graft is folded about a portion of an expandable member to form a loop portion. The flap is secured in the loop configuration so that tensile force on the expandable member is transferred into a shear force on the fixed portion of the flap.
摘要:
Two pieces of weatherstripping are spliced together by cutting a defined amount of a sealing element from a first piece of weatherstripping leaving an exposed backing, then overlapping a second piece of weatherstripping over the exposed portion of backing of the first piece of weatherstripping, and then ultrasonically welding the backing of the first piece of weatherstripping to the backing of the second piece of weatherstripping.
摘要:
A vehicular lamp includes a lamp source, a lamp body accommodating the lamp source, and a lens attached to the lamp body. The lamp body has an abutment surface on the top portion of a peripheral wall, which is configured to rise in a direction of an optical axis of the light source along a peripheral edge of the lamp body. The abutment surface of the lamp body is configured to incline to the optical axis. Similary, the lens has an abutment surface corresponding to the abutment surface of the lamp body along a peripheral portion of the lens. In this case, the abutment surface of the lens is configured within the dimention of an outer surface of the lens so as not to protrude over the outer surface. The abutment surfaces of the lamp body and the lens are integrally jointed together by laser walding.
摘要:
By providing a plurality of elongated, independent members and securely integrally affixing said members to each other by adhering or welding, a unique panel and/or block construction is attained having any desired size or shape needed for a particular application. Preferably, the independent, elongated members comprise a synthetic resin foam material formed in any desired cross-sectional shape. In one embodiment, the solid elongated, independent members are alternatingly affixed to hollow, elongated independent members in order to attain a panel and/or block having different resiliency and flexibility characteristics. This invention also incorporates a unique method for manufacturing the panels and/or blocks in a single, continuous process whereby all of the elongated members forming the panel and/or block are simultaneously welded together.
摘要:
This invention relates to a process and apparatus for joining strips of belt along their lengthwise running side edges, e.g., for repairing conveyor belts having lengthwise extending cracks, wherein the side edges of the joined strips of belt are beveled on either one or both sides, and the space between the beveled side edges is filled in by inserting a profiled fillet strip having elastic rubber properties, which is sealed in the side edges by cohesion and/or adhesion. A U-shaped frame supporting a cutting tool is provided for beveling the side edges of the belt to receive and engage with the fillet strip. Adjustable rollers on the frame contact the belt to guide the position and angle of the tool relative to the belt and to adjust the cut.
摘要:
A composite member comprises first and second elongate composite elements. Each has a wedge shaped end with a complimentary tapered end surface. At least one of the components is formed of a stack of fibre layers impregnated in resin, with the tapered end surface being formed by each fibre layer extending longitudinally progressively further than the adjacent layer towards the thin end of the wedge at which the fibre layers have the greatest longitudinal extent. The components are joined at their tapered ends by an adhesive, and the properties of the cured composite material of the at least one component and/or the properties of the adhesive are different in the vicinity of the thin end of the wedge as compared to the rest of the tapered surface in order to reduce the stress concentrations in this region.