Abstract:
A spinal cord stimulation (SCS) system includes multiple electrodes, multiple, independently programmable, stimulation channels within an implantable pulse generator (IPG) which channels can provide concurrent, but unique stimulation fields, permitting virtual electrodes to be realized. The SCS system includes a replenishable power source (e.g., rechargeable battery), that may be recharged using transcutaneous power transmissions between antenna coil pairs. An external charger unit, having its own rechargeable battery can be used to charge the IPG replenishable power source. A real-time clock can provide an auto-run schedule for daily stimulation. An included bi-directional telemetry link in the system informs the patient or clinician the status of the system, including the state of charge of the IPG battery. Other processing circuitry in the IPG allows electrode impedance measurements to be made. Further circuitry in the external battery charger can provide alignment detection for the coil pairs.
Abstract:
A power line fuse bypass having a first terminal for connecting to a first contact on one side of an electrical transmission line fuse, and a second terminal for connecting to a second contact on the opposite side of said fuse. An electrically conductive wire is provided for electrically connecting the first terminal to the second terminal. A coil spring is provided in surrounding relation to the wire with one end of the coil spring connected to the first terminal, and the second end of the coil spring connected to the second terminal.
Abstract:
In a building entrance protector having an input wire termination device and an output wire termination device, a barrier wall for isolating fusible link connections between the input wire termination device and the output wire termination device. The barrier wall comprising a fire-resistant plate for isolating the input wire termination device from the output wire termination device within the building entrance protector. The fire-resistant plate has a narrow opening comprised of a primary aperture and a wiring access slot. The wiring access slot permits insertion of terminated fusible links into the primary aperture which is capable of containing the fusible link connections between the input wire termination device and the output wire termination device.
Abstract:
An improved cable assembly for electrical overload protection, the cable assembly having a first cable, a second cable, a fusible link, and a protective housing. The first and second cables have a protective covering and an end portion extending past the protective covering. The fusible link is located between the first and second cables such that the end portions of the cables are electrically connected to opposing ends of the fusible link. The protective housing encases a portion of the fusible link, with an intermediate section of the protective housing being spaced away from a portion of the fusible link to form a cavity. The protective housing also engages a portion of the first and second cables to form a rigid interconnecting housing around the fusible link and portions of the first and second cables.
Abstract:
A holder for an electric fuse has a first receiving body which has an internally threaded nut assembled thereto in a manner allowing relative rotation between them. The assembly of the nut to the body allows separation of the nut from the body when a predetermined axial separating force is imparted between the parts, without damage to them. A second fuse receiving body has an external thread which engages the thread of the first body. As the threaded connection is made the body sections are drawn together to enclose the fuse therein.
Abstract:
An hermetically sealed terminal construction having a terminal pin assembly wherein inner and outer pin parts are interconnected by a fuse link surrounded by a protective capsule defining an expansion cavity, the terminal pin assemblies extending through and being hermetically sealed to sleeves forming part of the supporting base, including a dielectric sealing member which covers the protective capsules and contiguous portions of the adjoining pin parts, the sealing member being adapted to fracture upon rupture of the protective capsules caused by disintegration of the fuse links, thereby causing the adjoining pin parts and contiguous areas of the sealing member to separate from the remainder of the terminal, thereby cutting off the flow of current through the terminal.
Abstract:
A fuseholder assembly includes a two pole fuseholder having load side and line side sections housing a pair of inline fuses which connect respective load and line side terminals, and a breakaway receptacle that releasably joins the line side terminals to corresponding line conductors. The line side section of the fuseholder includes a boss on one side thereof and the load side section and breakaway receptacle each include mating grooves formed therein. The boss is received within both grooves when the fuseholder assembly is properly assembled to polarize the fuseholder sections with respect to one another and to polarize the attachment of the breakaway assembly to the line side fuseholder terminals.
Abstract:
A moisture and waterproof seal for a fuse is provided while allowing selectively for fuse visibility enhancing non-breakability, and improved resistance against moisture ingress. The fuse holder includes flexible molded members which are formed with lips towards the ends remote to the fuse ends thereby allowing the lips to engage and envelope the fuse sealing against moisture. A cuff and groove formation leading the lips provides enhanced sealing of the molded parts. The members can be moved between a position exposing the fuse for visibility and the sealing position enclosing the fuse against breakage. Internal to the molded members are yieldable clips for engaging the end ferrules of the fuse.
Abstract:
A crimp fuse constituting a separate unit independent of the electrical equipment with which it is to be used is disclosed, comprising a length of fuse wire material supported by an insulative rod onto each end of which is crimped a sleeve of e.g. conductive ribbon. An insulative covering, such as a shrunk-on piece of insulative tubing, insulates the wire and provides mechanical strength to the structure. One or both sleeves may be a double sleeve including a female terminal into which e.g. the stripped end of a line cord could be inserted for connection to the fuse. A pigtail may be provided at either or both ends to facilitate soldering.