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4094 results about "Soldering" patented technology

Soldering (AmE: /ˈsɒdərɪŋ/, BrE: /ˈsoʊldərɪŋ/) is a process in which two or more items are joined together by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal. Unlike welding, soldering does not involve melting the work pieces. In brazing, the work piece metal also does not melt, but the filler metal is one that melts at a higher temperature than in soldering. In the past, nearly all solders contained lead, but environmental and health concerns have increasingly dictated use of lead-free alloys for electronics and plumbing purposes.

Small-diameter snare

This invention provides a small diameter snare device consisting of a hollow, elongate, thin-walled polymer outer sheath. A single central core wire extends through the entire length of the sheath. The outer diameter of the core wire is sized close to the inner diameter of the sheath while allowing for axial sliding, in order to maximize the support to the body portion of the snare device. The distal end of the core wire has a tapered section of reduced diameter or cross section to provide a “guidewire-like” flexibility to the distal portion of the device. A second wire of about fifty percent of the inner diameter of the sheath is shaped to form a snare loop and the two ends are attached to the distal most portion of the central core wire via welding, soldering, or brazing. After assembly of the core and sheath, a second short, hollow tube is fitted over the proximal end of the central core and attached thereto to provide an actuating handle to slideably move the central core within the sheath, thus exposing and retracting the snare loop from the open distal end of the sheath. The loop is typically circular or oval shaped and can also be multiplanar (for example, a twisted, figure eight shape) so as to increase the ability to ensnare and capture objects. The loop attachment to the core wire is facilitated and strengthened by a wrapped coupling coil formed typically of 0.001-inch platinum wire applied to secure the loop prior to soldering (brazing or other metal-flowing joining techniques), and through which solder flows to permanently secure the loop to the core wire.
Owner:VASCULAR SOLUTIONS

Cable assembly with improved termination disposition

InactiveUS7651379B1Improved termination arrangementElectric discharge tubesTwo-part coupling devicesSolderingEngineering
A cable assembly includes an insulated housing defining a cavity portion along a longitudinal direction; a first contact module including a first insulator combined with a plurality of first contacts, each of the first contacts having a mating portion extending beyond a front surface of the first insulator and a tail portion disposed outside a back surface of the first insulator; a second contact module including a second insulator combined with a plurality of second contacts, each of the second contacts having a mating portion extending beyond a front surface of the second insulator and a tail portion disposed outside a back surface of the second insulator;
the first insulator overlapped with the second insulator, with each of the mating portions of the first contacts disposed into a corresponding gap between two adjacent mating portions of the second contacts, and the tail portions of first contacts spaced apart the tail portions of second contacts; and the first and second contact module inserted into the cavity portion of the insulated housing, with the mating portions of the first contacts and the second contacts extending into a mating port of the insulated housing, and the tail portions of the first and second contacts disposed outside of the cavity portion of the insulated housing and adapted for soldering to wires.
Owner:HON HAI PRECISION IND CO LTD

Method for preparing bimetal composite plate by stirring friction braze welding

The invention discloses a method for preparing a bimetal composite plate by stirring friction braze welding. The method comprises that: a plate with small hardness is used as a covering layer metal plate; a plate with high hardness is used as a base layer metal plate; the covering layer metal plate and the base layer metal plate are horizontally fixed on a working platform surface in a lap joint mode; solders which can generate eutectic reaction with one of the upper/base layer metal plates are preset between the upper/base layer metal plates; a non-needle type cylinder friction device is arranged over the covering layer metal plate; the non-needle type cylindrical friction device is made to rotate and be pressed to be closely contacted with the surface layer of the covering layer metal plate, but not penetrate the covering layer metal plate, and the non-needle type cylindrical friction device rotates in the original position or moves forward along the surface of the covering layer metal plate while rotating; by utilizing frictional heat to melt the solders, the upper/base layer metal plates are both quickly melted in the solders, thereby achieving excellent interface combination; and the excessive solders are squeezed out, and a thin and dense soldering seam is formed, so that the bimetal composite plate is prepared. Compared with the braze welding in a furnace, the method has the advantages of high efficiency, energy conservation, pressure lead-in, unnecessary soldering flux and gas protection and short holding time at a high temperature.
Owner:XI AN JIAOTONG UNIV

Helical guidewire

A guidewire is formed from a wire twisted around a portion of a longitudinal axis. The guidewire has a first longitudinal edge and a second longitudinal edge. The guidewire may be formed from a kink-resistant material such as Nitinol, stainless steel or titanium. The first and second longitudinal edges form a helical configuration such that the guidewire is capable of transmitting torque while remaining flexible. In one embodiment of the invention, the first and second longitudinal edges and the amount of twisting or pitching remain constant throughout the full length of the guidewire. In other embodiments of the invention, the dimensions of the longitudinal edges and the amount of twisting or pitching may vary widely over the full length or different sections of the guidewire depending on the intended application of the wire. The guidewire may be formed from a single twisted wire of different cross-sections or a plurality of wires having similar or different shapes twisted together around a longitudinal axis. The plurality of wires may be two wires having generally rectangular cross-sections with different dimensions, one wire having a generally rectangular cross-section and the other wire having a generally round cross-section, one wire having a generally rectangular cross-section and the other wire having a generally triangular cross-section, and a plurality of wires having generally round cross-sections, and the wires may be helically twisted together forming a guidewire. The wires may be held together by the sheer force of being twisted together around a longitudinal axis, or the wires may be glued or soldered together, either along the entire length of the wires or by spot gluing or soldering.
Owner:APPL MEDICAL RESOURCES CORP
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