Abstract: An adjustable wrench for driving a nut utilizes curved drive faces. The wrench is made up of three members. A first member has a jaw section, a mid section and a handle section. A second member has a jaw section and an attachment section for attaching to the first member in the mid section and adjusting the spacing of the jaws. A third member fits within the first member and attaches the first member to the second member in an adjustable manner in the mid section of the first member. The jaws of the first and second members have convex curved surfaces having forward and rearward drive faces. These convex curved surfaces form gripping members which drive the nut or bolt on the planes and not on the corners.

Abstract: A layered lead is disclosed including a layer of structural material which has top and bottom sides, a layer of fatigue-resistant material on the top and bottom surfaces and a layer of bonding material covering the fatigue-resistant layer on the bottom surface for connection to a contact on a chip. An asymmetrical distribution of bonding material on the top and bottom sides may be used to provide reinforcement of the lead against stress. The fatigue-resistant material also acts as a barrier against diffusion between the metal layers.

Abstract: Metal leads are formed on a copper conductive layer by applying a first resist and a main resist over the first resist, and forming aligned openings in these resist. A bottom layer of cover metal such as gold is plated onto the copper conductive layer in these openings, followed by a principal metal such as copper. The main resist is then removed so as to expose edges of the principal metal layer. A jacket of cover metal is plated onto the exposed edges and surfaces of the principal metal layer. During this stage, the first resist prevents deposition of the cover metal except on the leads. The jacket merges with the bottom layer of cover material, so as to form a continuous coating extending around the perimeters of the leads. The first resist is removed, and the conductive layer is etched away. The cover metal protects the principal metal during the etching stage.

Abstract: A wrench for use in driving a hexagonal nut having a wrench head. The wrench head has upper and lower jaws rigidly joined together. The jaws have several faces that allow the wrench to engage the nut from three different positions. The faces are configured to prevent corner contact with the nut so as to resist rounding the corners off. Further, one drive position is configured to lock the wrench to the nut as torque is being applied.

Abstract: An ratcheting-type wrench for use in driving a hexagonal nut having a wrench head. The wrench head has upper and lower jaw portions that are rigidly joined by at least one web. The jaws have several faces that allow the wrench to be ratcheted about the nut to different drive positions without removing the wrench from the nut. The jaws have two drive faces that allow the wrench to drive the nut with the wrench tips in an open-ended embodiment, and in both an open-ended and a box-ended embodiment allow the wrench to ratchet in 30 degree increments. The faces are configured to prevent corner contact with the nut so that the corners are not rounded off. A lock face is provided to prevent the removal of the wrench from the nut while applying torque.

Abstract: An wrench for use with a nut which protects the nut from damage as torque is applied and can drive the nut in two drive positions. The wrench of this invention has a head having an upper forward drive face opposed to a lower drive face and an upper rearward drive face adjacent to the upper forward drive face. An upper notch separates the upper forward drive face and the upper rearward drive face. There is a back stop face adjacent to the upper rearward drive face. The lower drive face is adapted to engage a first side of a nut, the upper rearward drive face is adapted to engage an opposed second side of the nut, and the back stop face is adapted to engage a corner of the nut when the wrench is in a primary drive position. The upper forward drive face is adapted to engage the first side of the nut, the upper notch is adapted to engage a nut corner adjacent to the first side, and the lower drive face is adapted to engage the second side when the wrench is in a secondary drive position.

Abstract: A screwdriver has a handle having a storage area for storing bits used with the screwdriver. The storage area consists of races formed in the handle that securely hold the extra bits so that they do not rattle and can be seen without removing them from the handle. The screwdriver also has an adjustable or multi-position shank so that the length of the shank can be increased or decreased as desired.

Abstract: An adjustable wrench has a positioner member which moves forward and rearward to position a nut generally along a center line of the jaw drive faces. The wrench has a movable jaw with a shank which extends slidingly through a cavity in the stationary jaw. The positioner member has a rearward edge that slidingly engages a forward edge of the shank so that it will move forward relative to the stationary jaw as the movable jaw moves toward the stationary jaw. The positioner member is retained in the cavity with a pin and elongated slot arrangement. The pin extends through side walls of the cavity, or alternately it may be mounted to inner sides of the legs. The legs fit within the cavity stationarily and have a receptacle which slidingly receives a portion of the positioner member. The legs may be retained by lugs on an upper edge and lips on a lower edge. Alternately, the legs may be retained by wedging them apart from each other.

Abstract: An open-end ratcheting-type wrench for use in driving a hexagonal nut has a handle and a wrench head that is joined to the handle. The wrench head has upper and lower jaws that are rigidly joined together by a web. The jaws have several faces that allow the wrench to be ratcheted about the nut to different drive positions without removing the wrench from the nut. The faces are configured to prevent corner contact with the nut so that the corners are not rounded off. A lock face is provided on the wrench to prevent the removal of the wrench from the nut during use. The lock face has a concave arcuate surface to allow ratcheting.

Abstract: An extensible wrench handle that can be used with a removable wrench head. The wrench handle has a cross beam shaped primary handle over which an extension may be slid to various positions for increasing or decreasing torque. The wrench handle is also provided with a flexible head that is pivotal about a forward end of the primary handle. The flex head has a substantially square drive post which protrudes from a flat surface of the flex head, the edges of the drive post being convex curved surfaces. The wrench head is an open end wrench that has upper and lower jaws that are joined by a web. A neck is joined to the web and has a drive hole which extends through the neck. The drive hole is defined by sidewalls which are convex arcuate surfaces.

Abstract: The present invention provides a means for electrically connecting the corresponding conductors of two adjacent sections of a multi-phase electrical distribution system. The electrical connecting device has a body with two ends and defines a hollow passage connecting the two ends. A conductor clamping plates is slidably received within the passage. A number of electrical connectors are fixedly attached to the clamping plate such that each conductor receiving pocket includes one electrical connector. The clamping plate is selectively movable between a first position and a second position. In the first position electrical conductors from the two adjacent sections may be inserted into the passage at their associated ends of the connecting device. In the second position the conductors are clamped between the passage and the electrical conductors such that conductors from one section sharing common electrical connectors with conductors of the other section are electrically connected together.

Abstract: An extensible wrench handle that can be used with a removable wrench head. The wrench handle has a cross beam shaped primary handle over which an extension may be slid to various positions for increasing or decreasing torque. The wrench handle is also provided with a flexible head that is pivotal about a forward end of the primary handle. The flex head has a substantially square drive post which protrudes from a flat surface of the flex head, the edges of the drive post being convex curved surfaces. The wrench head is an open end wrench that has upper and lower jaws that are joined by a web. A neck is joined to the web and has a drive hole which extends through the neck. The drive hole is defined by sidewalls which are convex arcuate surfaces.

Abstract: A wrench for driving a nut utilizes curved drive faces. The drive faces are convex and protrude inward toward a center line between the jaw portions. Notches are formed on each drive face near the free end. One wrench is adjustable, having a positioner that pushes the nut outward as the movable jaw closes. The positioner maintains the nut in a position in contact with the curved drive surfaces.

Abstract: A screwdriver and screw may be used in combination or with conventional screws and screwdrivers. The screwdriver has a head with forward and rearward faces. Curved driving surfaces on the faces extend from left and right side edges toward a longitudinal axis of the screwdriver. The screw has a slot with equal and opposite faces which are convex curved surfaces. The screw also has a bottom with protruding retainer lips and shoulders which extend upward along a side edge of each face for maintaining the driver in the slot. The bottom is a convex curved surface.

Abstract: A wrench for driving a nut utilizes curved drive faces. The drive faces are convex and protrude inward toward a center line between the jaw portions. Notches are formed on each drive face near the free end. One wrench is adjustable, having a positioner that pushes the nut outward as the movable jaw closes. The positioner maintains the nut in a position in contact with the curved drive surfaces.

Abstract: An open end wrench for use with a nut allows ratcheting of the wrench without removing the wrench from the nut. The wrench has fixed upper and lower jaw portions. An upper primary drive face and an upper secondary drive surface are located on the upper jaw portions. A lower primary drive face and a lower secondary drive face are located on the lower jaw portions. A rear stop face is located at the junction of the upper and lower jaw portions. Clearances are provided in the upper and lower jaws to enable the wrench to be rotated relative to the nut either approximately 30 degrees from a primary to a secondary drive position, or 60 degrees from primary to primary drive positions.