Abstract: An end coupling for a shaft of a rock bolt comprises a body having a lead portion with a leading end, and a tail portion with a trailing end. The tail portion is arranged to be connected to a drive to impart rotation to the coupling about its axis. The body defines a passage extending between the leading and trailing ends and a first portion of the passage extends from the leading end and has a first diameter. A second portion of the passage is disposed adjacent the first portion and has a second diameter that is larger than said first diameter. A first thread extends along at least part of the first portion of the passage and is arranged to engage an external thread on the rock bolt shaft. A rock bolt assembly incorporating the end coupling is also disclosed.

Abstract: Electrical connectors capable of being mounted on circuit substrates by BGA techniques are disclosed. Also disclosed is a method for manufacturing such connectors. There is at least one recess on the exterior side of the connector elements. A conductive contact extends from adjacent the interior side of the into the recess on the exterior side of the housing. A controlled volume of solder paste is introduced into the recess. A fusible conductive element, in the form of solder balls is positioned in the recess. The connector is subjected to a reflow process to fuse the solder ball to the portion of the contact extending into said recess. Contacts are secured in the insulative housing of the connector by deformable sections that minimize stress imposed on the housing, thereby reducing warpage. Solder resist areas are formed on central portions of the contacts to promote uniformity of solder volume.

Abstract: An electrical connector system configured to be attached to a support structure is disclosed. The electrical connector system may include a mount capable of being attached to the support structure. The mount may include a bezel and a flange. The bezel may define a first opening, a second opening and aperture. The flange may be integrally formed with and extending outwardly from the bezel. The first opening may be capable of receiving a first power connector and the second opening is capable of receiving a second power connector. The second power connector is capable of extending into the aperture of the bezel such that the first and second power connectors mate.

Abstract: A mine roof and rib support may include a support member having a roof support arm provided at an angle to a rib support arm, the roof support arm defining an aperture for receiving a mine roof bolt, and wherein the support member defines a channel having an opened side surface and two legs extending from the opened side surface to contact the mine roof and the mine rib. A method of supporting a rock formation may include positioning a support member having a roof support arm provided at an angle to a rib support arm, wherein the roof support arm defines an aperture for receiving a mine roof bolt and a channel having an opened side surface and two legs extending from the opened side surface to contact the mine roof surface and the mine rib surface extending a mine roof bolt through the roof support arm aperture.

Abstract: An electrical connector with at least two connector portions. A first connector portion and a second connector portion may each be mountable on a respective surface, such as a printed circuit board. The first and second connector portions may each include a housing. The housing of the first connector portion may include a bore and an adjacent pin. The housing of the second connector portion may also include a bore and an adjacent pin. The pin of the first connector portion may be received in the bore of the second connector portion, and the pin of the second connector portion may be received in the bore of the first connector portion, when the two connector portions are mated to one another. In one embodiment, the first and second connector portions may be substantially identical to one another.

Abstract: This invention relates to a card edge connector and a latch thereof. The connector is used to receive a printed circuit card and includes a housing having two opposite ends, a card slot disposed between two opposite ends. The housing has a first width. The latch as a latch body portion, pivotally mounted on two ends of the housing for ejecting the card, and at least one through hole and a second width. The latch further has a latch head portion, extending from the body portion for latching the card, having at least one through hole and a third width. The second and third widths are substantially the same, and are smaller than the first width of the housing for improving heat dissipation.

Abstract: Embodiments of electrical connectors include substantially identical first and second halves. The first and second halves each include insert molded leadframe assemblies that comprise electrical conductors. Each electrical conductor of the first half engages a substantially identical electrical conductor of the second half when the first and second halves are mated.

Abstract: The present invention relates to rock bolts which may be used in mining applications. The rock bolt of this invention includes a mechanical anchoring arrangement to facilitate retaining the rock bolt in a borehole, and also a drill bit to enable self drilling of the rock bolt. Rotation of the rock bolt about an axis of the rock bolt in a first direction causes the drill bit to drill into rock and to create a borehole to receive the rock bolt. Subsequently, rotation in the opposite direction actuates a mechanical anchoring arrangement to anchor rock bolt.

Abstract: A connector interface may include an arrangement of contacts in a first connector, and a corresponding, complementary arrangement of contacts in a second connector mating with the contacts of the first connector. The contacts may be signal contacts or ground contacts. When the connectors are mated, a ground may be established between the connectors by the mating of the ground contacts from the respective connectors. The ground contacts in the first connector may be shaped to bridge together an array of ground contacts in the second connector when the connectors are mated. Such bridging tends to establish a continuous ground along the array of ground contacts, creating a more robust ground than in an otherwise identical connector.

Abstract: A connector assembly is provided including an HDMI connector having a housing and a plurality of electrical contacts extending through the housing. The contacts define a first terminal end extending out from the housing and configured to be connected to electrical traces of a printed circuit board, and a second terminal end disposed opposite the first terminal end. The second end of the contacts can extend from the housing, and thereby be exposed to the ambient environment. The assembly can include one or more support mounts capable of attaching to the housing and to the circuit board to stabilize the connector. A protective shell can surround the second end of the contacts, and can be connected to the housing and to the printed circuit board. A dust cover can cover the upper end of the protective shell.

Abstract: An electrical connector including a housing; one or more recesses formed in one or more sidewalls of the housing; a plurality of terminals disposed in respective portions of the housing such that solder tails of the terminals are accessible through the one or more recesses; and one or more cover elements removably coupled to the one or more sidewalls of the housing such that, in a mounted state of the connector on a PCB, the solder tails are enclosed by the one or more cover elements.

Abstract: An apparatus and method are disclosed for manufacturing an electrical connector. A mold is presented having a pair of opposing dies that each define a mold pocket. The mold pockets of each die can be joined to form a mold cavity. Plastic can be injection molded into the mold cavity to form an electrical connector housing.

Abstract: A cable bolt includes a cable having a first end and a second end, and a barrel and wedge assembly attached to the cable at a position adjacent to the first end of the cable. The barrel and wedge assembly has a first end and a second end. The cable bolt also includes a nut positioned adjacent to the first end of the barrel and wedge assembly and defines a sealed interface therebetween. The nut defines a passageway in fluid communication with the cable.

Abstract: The invention concerns an electrical connector including a box, at least one electrically conductive track and a plurality of first electrical contacts, the first contacts being designed to come into contact with complementary second electrical contacts of a complementary connection device. In order to reduce the manufacturing cost of such an electrical connector and increase the electronic data transfer capacity through this electrical connector, the invention provides that the first electrical contacts are connected to electrically conductive tracks by joining, and that the box is formed by at least one molded plastic that is at least partially metal-coated to form the electrically conductive tracks.

Abstract: The connector of the present invention includes a base having a plurality of terminals for contacting the card and a cover for holding the card. In an embodiment, the base has two resilient plates extending from the base, each of the plates has a distal end at which an inner hinging portion is formed. The cover has an outer hinging portion engaged with the inner hinging portions to form a hinge such that the cover is pivotally mounted on the base and movable in relation to the base. Each of the resilient plates is L-shaped such that the hinge is deflectable from the base.

Abstract: The electrical connector includes an insulating housing, for receiving at least one electrical contact terminal connected to a cable, wherein at least one terminal accommodating chamber is formed, said insulating housing including a front face intended to mate with a counterpart connector, and a rear wall provided with a rear slot for introducing each terminal in the respective chamber. It further including a sealing deformable material facing the rear wall, and a press for pressing the sealing deformable material against the rear wall. The press comprises a flap connected to the housing so as to be able to rotate between an open position in which access to the rear slot is allowed, and a closed position in which the flap presses the sealing deformable material against the rear wall, so that the sealing deformable material deforms in order to sealingly close the rear slot and come into contact with the cable when it is inserted.

Abstract: A mine roof and rib support includes a curved support member comprising a roof support arm and a rib support arm with a curved junction portion between the roof support arm and the rib support arm and an aperture defined through the support member for receiving a mine roof bolt. A bearing plate having an upper edge and a lower edge, and a through-hole provided therebetween can be provided wherein the upper and lower edges are positioned in abutment with the roof and rib support arms, respectively. Also, a mine roof and rib support may include a curved support member comprising a roof support arm and a rib support arm and a curved junction portion between the roof and rib support arms, wherein the roof support arm defines the aperture for receiving a mine roof bolt that may extend substantially vertically through the through-hole and the roof support arm aperture.