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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7338241 | Fastener receptacle A receptacle for a fastener which is inserted into a receptacle receiving member. The receptacle is insertable and rotatable in a hole in the receptacle receiving member and includes at least one arm extending from a fastener receiving member. The arm is arranged to... | 03/04/2008 |
| 7293948 | Flexible threaded fastener A fastener includes a head, a threaded member, and a resilient shank portion interconnecting the head portion and the threaded portion. The shank portion includes a first end adjacent the head and a second end adjacent the threaded member. The shank includes a tubul... | 11/13/2007 |
| 7226259 | Locking fastener assembly A locking fastener assembly comprising a nut and a washer. The nut and washer each have opposed load bearing surfaces which include a series of annularly extending, slightly inclined faces forming shallow undulations around each surface. The load bearing surface on ... | 06/05/2007 |
| 7207760 | Washer and fastener provided with a washer A washer has a body having an axis and provided with a first face surface located at one axial side and adapted to cooperate with a nut, a second face surface located at an opposite axial side and adapted to cooperate with an object to be assembled or disassembled, ... | 04/24/2007 |
| 7184520 | Component mounting system with stress compensation A component mounting system that includes a rotor stem, nut, and mechanical interface. The mechanical interface defines a shaped surface and is integral with the component. An axial opening in the component permits the component to be mounted on the rotor stem. The ... | 02/27/2007 |
| 7152294 | Self-attaching female fastener element and method of installation A symmetrical self-attaching female fastener including a body having a bore, and identical integral tubular barrel portions extending from opposed ends of the body coaxially aligned with the bore. The installation method includes driving either barrel portion throug... | 12/26/2006 |
| 6979158 | Cage nut assembly having a stand-off nut A cage nut assembly includes a nut and a cage wrapped therearound. The nut has a number of stand-offs or protrusions provided on a lower surface thereof such that the stand-offs are the only part of the nut which are in contact with the cage. The stand-offs reduce t... | 12/27/2005 |
| 6789989 | Screw having a head with concave underside An integrally formed screw, such as a wood screw has a threaded cylindric stem and a head (9). At least a part (25) of the head (9) is shallowly convexly curved (25) and is provided with a screwdriver recess (26). The head (9 | 09/14/2004 |
| 6755601 | Weld nut An object of the present invention is to provide an excellent weld nut wherein the weld nut and an iron plate are closely fixed together by inserting extra metal materials upon welding into a groove around a weld projection. The present invention relates to weld nut... | 06/29/2004 |
| 6709211 | Girt or purlin retainer and method of using same A girt retainer is described for temporarily securing one end of a girt to a column clip until a second girt has been secured to the first girt and the column clip. The girt retainer comprises a threaded shank having a deformable, disk-shaped head mounted thereon. T... | 03/23/2004 |
| 6616390 | Structural member having a nut with an extended flange A nut includes an extended flange and a center hole. A shoulder is formed onto the edge of the center hole to achieve an easier and faster assembly. The shoulder has an essentially tubular shape and is provided with a thread on its inside wall.... | 09/09/2003 |
| 5927921 | Enhanced fatigue nut An enhanced fatigue nut for mating with a threaded mating component includes an exterior surface, a flanged mating end for insertion of a threaded mating component and an end opposing the flanged mating end. Disposed on the interior of the fastener may be... | 07/27/1999 |
| 5861557 | Cable yield indicator for earthquake restrainer cables An annularly configured device for use on each earthquake restrainer cable of a bridge, which device, will deform due to its internal configuration upon the occurrence of an earthquake, if the earthquake stresses the bridge cable with which the device is ... | 01/19/1999 |
| 5787794 | Mounting bolt for brake actuator An improved mounting bolt for attaching brake actuators to the frame of a vehicle includes a head having outermost portions which contact the service chamber housing, and inner portions which are spaced from the housing. The bolt spreads the force from ca... | 08/04/1998 |
| 5509766 | Fastening apparatus The invention relates to a fastening system comprising a nut and a counterpart, wherein for protection against torsion of the nut at least two fastening elements are provided which interengage as a projection and a depression. In order on the one hand to ... | 04/23/1996 |
| 5199838 | Nut for use on roadways, runways, in reinforced concrete construction, and the like A nut for use on roadways, runways, in reinforced concrete construction, and the like, possesses a generally circular shape, with spherical top and bottom surfaces connected by a cylindrical side wall. A central aperture formed through the nut is threaded... | 04/06/1993 |
| 5090854 | Self locking nut A symmetric self locking nut with a deflecting annular flange that allows the nut to be installed from opposite ends. The nut has a shank with a threaded hole through the longitudinal axis of the shank. Extending from the shank perpendicular to the longit... | 02/25/1992 |
| 4793754 | Process for locking two screwed elements and elements for carrying out this process A process for mutually locking two elements screwed on one another, wherein it is provided that a portion of one of the elements covers a housing provided in the other element and overlaps an edge limiting said housing; said portion or a part thereof is t... | 12/27/1988 |
| 4770584 | Demountable pin, particularly suitable for the lever mechanisms of textile machines A self-locking demountable pin consisting of a central stay bolt with an internal hexagonal through bore for its tightening by a key and comprising at its two ends two opposite-handed external threads, right handed and left handed respectively, which coop... | 09/13/1988 |
| 4764340 | Fuel assembly stress relieving fastener A device for relieving thermally induced stresses developed in a nuclear fuel assembly during reactor heatup is disclosed herein. The device generally comprises a stress relieving fastener capable of connecting a fuel assembly top nozzle, which may be sta... | 08/16/1988 |
| 4741654 | Spider washer head fasteners A fastener having a body defining an axis of rotation extending downwardly from the body and formed integrally therewith is provided with a flange extending radially and downwardly from the body. The flange is slotted to define a plurality of deformable t... | 05/03/1988 |
| 4523883 | Printed circuit board fastener The invention includes a method and a fastener for use in attaching articles to printed circuit boards. The fastener, which has a generally tubular body, flanged at one end, is adapted to receive a screw. The fastener has a polygonal cross-section over a ... | 06/18/1985 |
| 4516893 | Sheet metal screw A rotary fastener for use in attaching sheet metal or attaching articles to sheet metal. The fastener has a serrated helical ramp forged in the undersurface of the head during the heading operation. The serrations have generally radially oriented surfaces... | 05/14/1985 |
| 4498825 | Load indicating flange A load indicating flange is provided either separately or on a nut or a bolt head. This load indicating flange has an axially directed face which has a wavy surface on which a plurality of crests are disposed for initial engagement with a work surface. A ... | 02/12/1985 |
| 4350465 | Spider washer head screw A screw having a head and a body defining an axis of rotation extending downwardly from the head and formed integrally therewith is provided with a flange extending radially and downwardly from the head about the upper end of the body. The flange is slott... | 09/21/1982 |
| 4293256 | Load indicating fastener An improved fastener indicates when a predetermined preload has been applied to the fastener. The fastener includes a body section which is connected with a thread convolution. A load transmitting and indicating section is connected with the body section.... | 10/06/1981 |
| 4269248 | Fastener with flexible flange A fastener such as a threaded nut, bolt or screw includes a body portion with a bearing surface at the workpiece engaging end defined at least in part by a flange. Segments of the bearing surface defined by the flange are flexible and resilient so that up... | 05/26/1981 |
