NORD-LOCK AB Patent applications |
Patent application number | Title | Published |
20160003287 | LOCKING WASHER ASSEMBLY - A locking washer assembly includes a first locking washer and a second locking washer. The first and second locking washers include a mechanism for engaging an element to be attached by means of a screw joint. The first and second locking washers include a mechanism for engaging each other. The first locking washer includes a central through hole that is larger than a central hole of the second locking washer. An attachment assembly includes a screw intended to be used with the locking washer assembly. | 01-07-2016 |
20130170922 | METHOD AND A PLANT FOR WASHER PRODUCTION AND A WASHER - A method for producing metallic washers ( | 07-04-2013 |
20100260580 | LOCKING ELEMENT AND BOLTED JOINT - A locking element for locking in a bolted joint, the locking element comprising one side comprising a pattern of radially extending cams, the main surface of which having a helix configuration, the pitch of the cams exceeding the pitch of the threads involved in the bolted joint. The locking element is especially characterized in that the locking element is a washer intended to be applied as a single locking element in the joint and in that the other, the opposite, side of the washer comprises mechanical means for providing a locking action for preventing rotation between said other side and a surface against which said other side is intended to act. The invention also relates to a bolted joint. | 10-14-2010 |
20100239389 | Method for coating washers for locking and coated washer for locking - Methods for manufacturing a hardened steel locking washer are disclosed, the washer having a pattern of teeth on one side and a pattern of cams on the other side, the method comprising the steps of providing the washer with an anti-corrosion coating by providing a low-alloy steel washer, hardening the low-alloy steel washing having a carbon content greater than 0.25% by weight, heating to an austenitizing temperature and subsequent quenching, and applying a basic coating comprising zinc flakes non-electrolytically onto the hardened low-alloy steel washer. | 09-23-2010 |
20100209214 | METHOD AND A DEVICE FOR THE MANUFACTURING OF WASHERS FOR LOCKING AND WASHER FOR LOCKING - A method for the manufacturing of circular washers for locking from blanks, a washer having a central hole, a first side comprising a pattern of radially extending teeth and a second side comprising a pattern of radially extending cams. The method is especially comprised in the steps of producing a washer blank having an annular shape; introducing the washer blank into a die assembly for forming a closed shaping space by a lower die portion, an opposing upper die portion, a central die portion and a support piece, the central die portion extending through a washer blank central hole; forming the blank to a washer by mutual movement of said lower and upper die portions; and opening the closed shaping space to extract the formed washer. The invention also relates to a device and a washer. | 08-19-2010 |
20100098511 | LOCKING SYSTEM AND FASTENING ELEMENTS - A locking system comprising a fastening element, the fastening element being a hexagonal nut or a hexagon-headed bolt, and a locking washer unit, a locking washer having a central hole, a first side comprising a pattern of radially extending teeth and a second side comprising a pattern of radially extending cams. The system is especially characterized in that the fastening element comprises a contact portion extending from the hexagonal part of the fastening element and providing an annular end surface of the hexagonal fastening element part, the contact portion having an outer diameter (D) substantially corresponding to the maximum width (w) of the hexagonal fastening element part. The invention also. relates to a fastening element. | 04-22-2010 |