Abstract: An integrally formed resilient holder is configured in the form of a two-turn spiral ring body with an elongated configuration. The holder includes an upper loop and a lower loop having a size substantially different from that of the upper loop, such that pivot points are created at which the upper loop and the lower loop intersect each other. In the light of its deformability, the holder can be easily triggered to open up an entry port through which keys or rings may be introduced or removed by a simple press from the user. The holder is of high durability and versatility and is cost-effectiveness accordingly.

Abstract: A press control key ring includes a split ring defining an opening between two opposite ends thereof, and a locking module including an inner casing for the insertion of the two opposite ends of the annular wire rod and having a mounting hole on the middle of the top wall thereof, an elastic member mounted in the inner casing with one end thereof secured to an inner bottom wall of the inner casing, a press block mounted in the mounting hole and supported on the opposite end of the elastic member, and an outer casing sleeved onto the inner casing and having an insertion hole on the middle of the top wall thereof for the insertion of the press block.

Abstract: A dual key ring consisting of a ring holder, a first ring and a second ring is disclosed. The ring holder includes a connection tube with a ring hole transversely cut through one end thereof for securing the first ring, a movable block axially movably mounted in the connection tube with a round hole thereof for axial alignment with the ring hole, a locating block mounted in the connection tube, a first elastic member stopped between the movable block and the locating block, a movable cylinder coupled to the connection tube, steel balls rotatably mounted in ball holes around the movable cylinder and rotatably positioned in an inner annular groove in the connection tube, a connection rod mounted in the movable cylinder and stopped against the locating block, a connector coupled to the movable cylinder for securing the second ring and a second elastic member supported between the connection rod and the connector.

Abstract: A plating method includes: providing a work piece which is metal or non-metal; forming a printed layer on a predetermined region of a surface of the work piece through printing electrical conductive material on the predetermined region; forming a plated layer through plating the printed layer and the surface of the work piece.

Abstract: A flash drive structure includes an insulated base including an upper end, a first slot formed near the upper end, a lower end, two inclined guiding surfaces, a receiving space connected to the inclined guiding surfaces, a limiting tab disposed in the receiving space and two latches disposed on the two guiding inclined surfaces respectively; a circuit board including a surface, on which circuits and modules are mounted, and an extending portion, on which a plurality of interface elements are disposed, wherein the extending portion corresponds to the receiving space, the circuit board is mounted on a lateral surface of the insulated base through the extending portion positioned in the receiving space by the limiting tab; and a case having a hollow structure, housing the assembled insulated base and circuit board, wherein the case includes two notches configured to engage the latches.

Abstract: A flash drive includes a housing, a storage module, a plug head, a positioning element and a rotatable cover. The housing has an inner space formed by a front wall and a rear wall for accommodating other elements. The storage module has a metal sheet at one end for connecting a connecting plate including a plurality of metal terminals and a plurality of welding pads at the other end for connecting a plug head. The positioning element positions the storage module in the housing and the plug head protruding from a lateral wall of the housing (the top wall of the housing). The rotatable cover is eccentric-rotatably disposed on the housing to cover or uncover the plug head.

Abstract: A flash drive includes a housing comprising a front wall, a rear wall and an inner space formed by the front wall and the rear wall; a storage module disposed in the inner space; a plug head mounted at one end of the storage module; a positioning element positioning the storage module in the inner space of the housing in such a manner that the plug head protrudes from one end of the housing; and a cover pivoted to the front wall and the rear wall through an eccentric-rotation structure to cover or uncover the plug head.

Abstract: A flash drive and protective cover mounting structure includes a flash drive consisting of a casing, a memory module, a electrical connector and a positioning member, and a protective cover including a substantially U-shaped and relatively larger outer cover component having a smooth outer surface and a substantially U-shaped and relatively smaller inner cover component mounted in the outer cover component pivotally connected to the casing and biasable relative to the casing between an open position to expose the electrical connector and a closed position to shield the electrical connector.