Patent application number | Description | Published |
20090191976 | METHOD OF ASSEMBLING CAPTIVE SCREW - A method for assembling captive screw includes the steps of providing an annular base and positioning an annular washer on a top of the annular base; providing a screw, a coil spring, and a sleeve; downward passing the screw through the coil spring and a top opening of the sleeve; and threading a threaded section of the screw through the annular washer, so that the annular washer is fitted around a shank of the screw to locate below the top opening of the sleeve and above the threaded section of the screw. An inner circumferential edge of the annular washer is not worn away by the threaded section of the screw threaded therethrough, enabling the annular washer to keep a small inner diameter for tightly fitting around the shank of the screw and ensuring reliable assembling of the sleeve to the screw. | 07-30-2009 |
20090202318 | LOCK DEVICE - An improved lock device includes: a locking unit, having a force exerted portion, a screw rod section and a screw thread section sequentially disposed on a surface of the force exerted portion, and an embedded groove disposed around the periphery of the screw rod section; and a ferrule, having an embedding edge and a latch groove, and the embedding edge installed into the embedded groove for movably coupling the ferrule to the locking unit, such that the invention can use the ferrule latch groove and the locking unit for locking a board with a base as required. | 08-13-2009 |
20090202319 | LOCK DEVICE - An improved lock device includes: a ferrule having a through hole disposed at the center of the ferrule, and a groove disposed around the external periphery of the through hole; a locking unit having a force exerted portion and a screw rod that passes through the through hole; a resilient element sheathed onto the screw rod, and an end of the resilient element being disposed in a groove around the ferrule, and another end of the resilient element pressing against a surface of the force exerted portion; and a knob fixed onto the force exerted portion and movably coupled to the ferrule. Therefore, the resilient element can be fixed between the ferrule and the locking unit, and covered with the knob for preventing the resilient element from being damaged by external forces or tilted by external objects to achieve a better stability of using the resilient element. | 08-13-2009 |
20090256453 | LATCH-TYPE LOCATING DEVICE - A latch-type locating device including an outer sleeve having an annular engaging section formed at a front end thereof; an inner sleeve movably telescoped in the outer sleeve; a linking unit including a connecting rod located in the outer sleeve, an actuating rod connected to a front end of the connecting rod and fitted in the inner sleeve to interfere with the same, and a flange formed at a rear end of the connecting rod; a cap member being engaged with the flange of the linking unit; and an elastic element fitted around the connecting rod of the linking unit. The inner sleeve may be driven by the cap member and linking unit to extend from or retract into the outer sleeve to thereby lock an article in place or release the article. | 10-15-2009 |
20090271950 | HANDLE STRUCTURE WITH LOCKING UNIT - A handle structure with locking unit includes a handle having a hollow fitting section provided at a predetermined position, a locking unit movably coupled with the handle, and an elastic element fitted around the rod section and restricted within the fitting section. The locking unit includes a rod section fitted in the fitting section of the handle, an operating section located at an end of the rod section to outward protrude from a first end of the fitting section, and a threaded section located at another end of the rod section to outward protrude from a second end of the fitting section. An annular stop section is formed around the rod section to interfere with the fitting section. When a slidable carrier unit with the handle structure mounted thereto is in a fully inward pushed position, the operating section may be turned to lock or unlock the carrier unit. | 11-05-2009 |
20090313804 | METHOD OF ASSEMBLING CAPTIVE SCREW - A method for assembling captive screw includes the steps of providing an annular base and positioning an annular washer on a top of the annular base; providing a screw, a coil spring, and a sleeve; downward passing the screw through the coil spring and a top opening of the sleeve; and threading a threaded section of the screw through the annular washer, so that the annular washer is fitted around a shank of the screw to locate below the top opening of the sleeve and above the threaded section of the screw. An inner circumferential edge of the annular washer is not worn away by the threaded section of the screw threaded therethrough, enabling the annular washer to keep a small inner diameter for tightly fitting around the shank of the screw and ensuring reliable assembling of the sleeve to the screw. | 12-24-2009 |
20090317208 | SCREW STRUCTURE WITH STOP RING - A screw structure with a stop ring includes a screw, a ferrule, and a stop ring. The stop ring is fitted on a threaded shank of the screw to push against a front end of the ferrule, so that the ferrule is pressed against a head of the screw. With the ferrule being firmly pressed against the head of the screw by the stop ring, the ferrule will not sway relative to the screw, allowing the screw structure to be stably sucked with a sucking tool and be highly accurately assembled to a printed circuit board. | 12-24-2009 |
20100003104 | FASTENER - An improved fastener includes a fastener body and a blocker. The fastener body has an end functioning as a connecting head, and center of the fastener body forms an axial threaded bore. An end of the axial threaded bore corresponding to the connecting head is formed into a recess surrounded by the connecting head. The blocker is removably fitted in the recess of the fastener body. When the connecting head of the fastener body is extended through a fixing hole on a printed circuit board with the blocker fitted in the recess, solder paste applied over the fixing hole is prevented from entering into the axial threaded bore of the fastener body to interfere with a screw being threaded into the fastener body. | 01-07-2010 |
20100088886 | PACKAGING METHOD FOR ASSEMBLING CAPTIVE SCREW TO PRINTED CIRCUIT BOARD - A packaging method for assembling a captive screw to a printed circuit board (PCB) includes the steps of providing a captive screw having a screw head, a threaded shank and a sleeve; pressing a fixture toward the screw head for a part of the threaded shank to exposed from a distal end of the sleeve, and then clamping the fixture on the sleeve; providing a PCB having through holes and a layer of solder provided thereon; using a tool to pick up the fixture and the captive screw and align the threaded shank with one through hole on the PCB; releasing the fixture and the captive screw from the tool for a flange at the distal end of the sleeve to extend into the through hole; heating, melting and then cooling to harden the solder layer, so that the sleeve is fixedly held to the PCB; and removing the fixture. | 04-15-2010 |