Abstract: A network interface device for Ethernet networks using unshielded twisted pair cables comprising an overvoltage protection module and an interconnection module connected to the overvoltage protection module, both modules being connected in series in the Ethernet network.

Abstract: Residential protection service center apparatus comprising AC power line overvoltage protection, telephone voice line overvoltage and overcurrent protection, high speed data line overvoltage and overcurrent protection and coaxial transmission line overvoltage protection, all tied to a common ground.

Abstract: Residential protection service center apparatus comprising an AC power meter, AC power line surge suppression, telephone line overvoltage protection and coaxial transmission line overvoltage protection, all tied to a common ground.

Abstract: A network interface device for connecting telephone company lines and subscriber lines comprising an enclosure with a base and a cover and a socket having at least two sets of three switchable contacts, the first and second contacts (telco and customer) of each set being of a heavier gauge material than the third contact (test) of each set to improve reliability, the socket providing a point of demarcation between the telephone company and subscriber lines. Use of operational plugs (FIGS. 44, 47, 50) and dummy plugs (FIGS. 46, 49) is disclosed.

Abstract: Residential protection service center apparatus comprising an AC power meter, AC power line surge suppression, telephone line overvoltage protection and coaxial transmission line overvoltage protection, all tied to a common ground.

Abstract: A plug-actuated switchable electrical socket having at least one set of three electrical contacts, two of the three contacts being of a heavier wire gauge than the third contact, the insertion of a plug in the socket effecting a switching action between at least two of the three contacts.

Abstract: A network interface apparatus for connecting incoming and subscriber coaxial transmission lines and having a coaxial transmission line surge arrestor connected in series between the coaxial transmission lines, the surge arrestor comprising a gas discharge tube having a hollow conductive housing and a center conductor having a longitudinal axis parallel to the direction of signal transmission, the interior surface of the hollow housing and the exterior surface of the center conductor being symmetric with respect to the longitudinal axis, ratio of the inner diameter of the conductive housing to the outer diameter of the center conductor being varied within the gas discharge tube for matching the impedance of the surge arrestor to that of the transmission line.

Abstract: A wire termination device for terminating insulated wires using insulation displacement contacts. The device may employ a pivotally mounted lever with a curved slot for receiving a pin or may employ a pivotally mounted rocker arm, movement of the lever and rocker arm effecting termination of the insulated wire by forcing the wire into engagement with the insulation displacement contact.

Abstract: A modular device for connecting telephone company wiring and subscriber telephone wiring in a telephone network interface apparatus, the modular device having a replaceable protection and/or electronics unit, a plug-actuated switchable socket or a switch connected to an external socket for providing a point of demarcation between the telephone company wiring and the subscriber wiring, wire termination mechanisms for terminating and unterminating the telco and subscriber wiring at the network interface apparatus without the use of tools and slidable security covers.

Abstract: A gas tube fail safe device for use in individual subscriber circuit telephone mmodules and related equipment, in which a fusible element is adapted to by-pass the conductive function of the gas tube in the event of gas tube failure. In one embodiment the construction provides for the fusing of the fusible element upon the occurrence of a sustained current overload. In another embodiment, this operation is supplemented by provision of secondary air gap means operative upon the occurrence of momentary excess voltage surges in the presence of a defective gas tube.

Abstract: An artificial fingernail extension having formed a wedge shaped pocket at the rearward end, the convex edge of the natural fingernail is inserted into said pocket and securely bonded thereto.

Abstract: The front panel of a table saw has a lever which controls the elevation of the saw blade relative to the saw table. The elevation control lever is also coupled to a bevel control means for tilting the saw blade (and its driving motor) with respect to the table. The combination of these translational and bevel movements results in a relatively large traverse of the elevation control lever. The elevation control lever projects through an opening in the front panel of the housing for the table saw, and this opening is of sufficient size and shape to accommodate the total excursion of the elevation control lever in its traverse. An articulated cover means is provided within the housing to prevent dust from entering into the housing via the opening, as well as to prevent inadvertent contact with the operating mechanism. This articulated cover means includes a first cover member which is disposed substantially flush against the opening on the inside of the front panel.

Abstract: A switch actuator in the form of a bifurcated elongated member has a pair of legs pivoted relative to each other. In the "off" position of the switch, the legs may be pivoted relative to each other, and the actuator may be withdrawn from the switch. This precludes an unauthorized operation of the switch and the equipment controlled thereby. In the "on" position of the switch, an interlocking means precludes the relative pivotal movement of the legs, and the actuator may not be withdrawn from the switch. In the preferred embodiment, the legs of the actuator automatically engage an operating element of the switch, upon the insertion of the actuator into the switch. Thereafter, the actuator has a limited sliding movement to alternately move the switch into its "on" and "off" positions. Preferably, the switch is of the "pull on/push off" type; and the sliding movement of the actuator is in a plane which is substantially parallel to the linear movement of the switch operating element.

Abstract: A sheath for holding a temperature sensing unit in place in the hair wrapped around a curling rod, comprising a top elongated channel portion, a pair opposed downwardly and outwardly projecting curved wings connected to the channel, the radius of curvature of the wings increasing with the distance from the channel and a hollowed out portion below the channel.

Abstract: A temperature sensing device contains a thermistor, a cable connecting the thermistor to a time-temperature control device, and means for securing the device to a hair roller.