Class / Patent application number | Description | Number of patent applications / Date published |
081461000 | Inserted portion having plural, separate, work-engaging projections | 7 |
20090038448 | SCREWING DEVICE - A screwing device includes a holder, an interaction unit and a screwing unit. The holder has a rotation axle. The interaction unit is connected to the rotation axle and has an interaction ring. The screwing unit has a plurality of screwing elements and interacts with the inner peripheral surface of the interaction ring. When the holder rotates along a screwing direction, the interaction ring also rotates along the same screwing direction and drives the screwing unit to rotate along the same screwing direction. | 02-12-2009 |
20090133543 | COMBINATION TOOL - A combination tool is provided that includes, but is not limited to a tool shaft with an inner part and an outer part, a first tool head that is integrally formed on the inner part and a differently designed second tool head that is integrally formed on the outer part. The tool shaft is realized in such a way that it can be inserted into a machine and features at least one holding element for mounting a tool head thereon in a locking fashion. | 05-28-2009 |
20110283843 | Screw Drive Design - A drive design for a fastening element in-stalled using screws, in particular, a screw or a nut, comprises drive surfaces ( | 11-24-2011 |
20120312130 | FASTENERS AND FASTENING SYSTEMS - A system includes a fastener and a driving tool configured to mate with the fastener. The fastener includes a driving portion having an upper face, a bottom face, and a side wall extending between the upper and bottom faces. Recessed sections extend into the driving portion from the upper face. Each recessed section includes a first wall in spaced relation to a second wall. At least one of the first and second walls is angled to form a wedge-shaped undercut underlying the upper face of the driving portion. The driving tool includes a raised portion extending from a floor of the driving tool. The raised portion has third and forth walls, and at least one of the third and fourth walls is angled relative to the floor to form a wedge-shaped extension section. The extension section engages with the undercut to interlock the driving tool with the fastener during installation and/or removal. | 12-13-2012 |
20130180369 | APPARATUS FOR TIGHTENING THREADED FASTENERS - According to a first aspect of the invention we provide an apparatus ( | 07-18-2013 |
20130213194 | SLIP-PROOF CLAMPING SYSTEM - The slip-proof system consists of screw connection elements in the form of union nuts having recesses ( | 08-22-2013 |
20140305267 | No-Slip Screwdriver - A no-slip screwdriver is provided. The present invention comprises a screwdriver having a plurality of protrusions extending perpendicularly from the blade faces. These protrusions bear against the interior walls of a screw head groove, preventing the blade from slipping or skidding when the device is in use. The protrusions increase the width of the screwdriver blade, giving the screwdriver blade less room to move within the screw head. The protrusions of the present invention may be provided in a variety of different configurations, including ridges and nubs. The present invention may further be provided in either flathead or Phillips head variations. | 10-16-2014 |