An electrical connector is disclosed for mating with a dashboard mounted speedometer assembly that includes a housing with a plurality of terminal pins projecting therefrom. A plurality of elongated terminals each have a resiliently expandable socket portion at one end for receiving one of the terminal pins of the speedometer assembly, a terminating portion at the opposite end for interconnection with circuitry on a printed circuit board, and an intermediate portion between the ends. A dielectri...

Electrical isolation which is required between adjacent windings of a device such as a transformer is provided by wrapping a group of individually insulated conductive cores 62, 64, 66, 68 with multiple turns of a thin tape 32. Use of a thin tape rather than solid insulation provides a long creepage path from the cores 62, 64, 66, 68 to adjacent components. The invention can also be applied to components other than transformers.

An electrical device in which a conductive terminal is physically and electrically attached directly or indirectly to a face of a laminar PTC resistive element. The terminal comprises a laminar portion and a non-laminar shaped portion which lies within a projection of the periphery of the PTC resistive element. The shaped portion serves to improve thermal transfer between the PTC element and the atmosphere surrounding the device. Devices of the invention are useful as circuit protection devices.

The electrical connector of the present invention includes an electrically conductive sleeve having a passage therethrough and an elastomeric housing molded therearound. After the molding of the housing around the sleeve, a contact element is disposed within the passage of the sleeve for engagement with the contact member of another connector. An arc snuffer housing and arc snuffer are attached to one end of the contact element for guiding the contact member toward the contact element and for ev...

An electrical wrench includes a motor and a drive shaft driven by the motor. A transmission body is mounted on the drive shaft for rotating synchronously therewith and has an accommodating space. A wrench shaft has a follower member extending into the accommodating space. A swing member has an axial positioning protrusion and is pivoted within the accommodating space about an axis offset and parallel to the axis of rotation of the transmission body. The swing member can swing to an engaging posi...

An improvement to electrical bicycles is provided. The bicycle is improved by directly securing a one-way driving assembly to the left side of the driving wheel's hub and forming a one-piece unit with the hub. By having an inserting body protruding from a rotating body, a large bevel gear wheel of the driving assembly is joined with the rotating body. An output bevel gear wheel of a D.C. motor is engaged with the large bevel gear wheel to directly drive the hub in a forward direction. The hub ma...

An electrical assembly in which electrical connection is made to a device having two laminar electrodes and a laminar element between the electrodes, preferably a circuit protection device in which a PTC conductive polymer element is sandwiched between two metal foil electrodes. Connection is made to at least one of the electrodes by a resiliently deformed clip having an active arm which contacts one of the electrodes, and a passive arm which is not in conductive contact with the other electrode...

A nonmetallic electrical box which has mounting surfaces or contacting points, a pair of bosses and a pair of securing arms. The bosses extend from the center of the top and bottom walls of the box for mounting a wiring device within the box, and the securing arms extend from the top and bottom walls for securing the box within the opening of a wall or ceiling. The contacting points are spaced apart along the top and bottom walls, are coplanar and extend outwardly from the top and bottom walls a...

The electrical connector of the present invention includes an electrically conductive sleeve having a passage therethrough and an elastomeric housing molded therearound. After the molding of the housing around the sleeve, a contact element is disposed within the passage of the sleeve for engagement with the contact member of another connector. An arc snuffer housing and arc snuffer are attached to one end of the contact element for guiding the contact member toward the contact element and for ev...

An improved electrical fitting is provided in a first embodiment that is a coupling which consists of a housing to receive in each side a distal end of a length of electrical metallic tubing carrying wiring therein. A pair of hose clamps are each built into the housing at each side, so that the distal end of each length of electrical metallic tubing can be retained thereto. A second embodiment that is a connector which consists of a housing to receive in a first side a distal end of a length of ...