Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 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 |
| 6994486 | Functional element and panel assembly A method for placing a functional element, especially a fastening element, in an especially liquid-tight and/or gastight manner, on a metal part. The inventive method is characterized in that a functional element provided with a hollow head segment is pressed agains... | 02/07/2006 |
| 6913666 | Process for anchoring connecting elements in a material with pores or cavities and connecting elements therefor A joining pin (3.2) with which two parts (1 and 2) made from a porous material, particularly wood or a wood-like material, are to be joined together, is anchored in the porous material at predetermined anchoring points (31, 33). For this ... | 07/05/2005 |
| 6527491 | Driving fit rivet made of aluminum The present invention provides the driving fit rivet made of aluminum, whereof, when driving in the rivet to caulk and joint without making a prepared hole on aluminum plates, no crack, no buckling, no seizure, and the like are caused, it is possible to c... | 03/04/2003 |
| 6499926 | Fastener apparatus and method of fastening non-metallic structures A fastener for fastening and joining sections of composite material together is disclosed comprising a substantially cylindrical core component and substantially cylindrical hollow sleeve component, one or both of which are pre-coated with a curable organ... | 12/31/2002 |
| 6007287 | Deformable head fastener A fastener for use in connecting first and second structural members together. The first and second members have aligned bores defining a fastener receiving hole including a countersink portion extending from an outer surface of the first member and a thr... | 12/28/1999 |
| 5860780 | Self-lubricated thrust rivet A hollow self-lubricating thrust rivet or fastener is adapted to pivotably fasten first and second members to one another. The fastener is laminated on its outer surface with a self-lubricating or lubricious bearing material such as an organic polymer or ... | 01/19/1999 |
| 5826376 | Window regulator for a vehicle and method of assembling the same A window regulator for a vehicle has a lift arm pivotally mounted on a door panel of a vehicle. A gear plate including teeth on the periphery thereof is connected to one end of the lift arm. A driving device engages with the teeth and moves the gear plate... | 10/27/1998 |
| 5475993 | Linkage lock device A linkage lock device is provided for fastening objects having either regular or irregular shapes. The lock is composed of a plurality of identical arcuate bars having opposing ends of each bar pivotally connected to an end of another one of the bars to f... | 12/19/1995 |
| 5167091 | Clip and method for supporting plants on wooden fences A clip (20) for supporting a vine or plant stem (S) on a pair of planks (12, 14) of a wooden fence (10). The clip (20) has an elongate body portion (22) and a pair of legs (24, 26) extending in opposite transverse directions relative to the longitudinal a... | 12/01/1992 |
| 5082411 | Fastening means such as a rivet, assembly process and assembly obtained The invention relates to a fastener member for the production of assemblies, in particular a rivet. This fastener means includes a shank (1) and a head (2) intended to be deformed by flattening during installation. On its front face, this head has an annu... | 01/21/1992 |
| 5009557 | Assembly device and processes of using said device An assembly device for permanently joining at least two parts includes a rivet element having a head and a rod formed of a material which is deformable by compression, and a washer having an opening through which the rod extends when the rivet element is ... | 04/23/1991 |
| 4712958 | Controlled expansion flush-head rivet design and method of installing same The invention is a flush-head rivet design 10 for joining two or more structural members together. One of the plates 52 incorporates a countersink 55 in the hole therethrough having an included angle 56 of between 99 to 101 degrees. In detail, the rivet 1... | 12/15/1987 |
| 4695213 | Controlled expansion protruding-head rivet design The rivet 10 comprises a shank portion 12 having a minimum and maximum shank diameter 18. The flush head 14 of the rivet includes a head diameter 23 before forming a land 24 on the edge thereof of between 1.875 times the minimum shank diameter 18 and 1.87... | 09/22/1987 |
| 4688317 | Rivet installation method A rivet installation method creates a preload on the workpieces being joined. The rivet shank is urged to resist compression during installation while a ring on the end of the shank is compressed against the workpieces. Withdrawing the compression release... | 08/25/1987 |
| 4681499 | Controlled expansion protruding-head rivet design and method of installing same The invention is a protruding-head rivet for joining two or more structural elements together which, when driven, using all standard driving tools, provide a controlled expansion of the hole. The protruding-head rivet 10 has a shank 12 having a nominal di... | 07/21/1987 |
| 4425067 | Fatigue resistant rivet A fatigue resistant rivet in which the head has a distal frusto-conical portion and a proximate frusto-conical portion relative to the shank thereof. The proximate portion has a conical surface with a smaller angle relative to the rivet axis than the coni... | 01/10/1984 |
| 4048708 | Riveting method expanding a work counterbore The method of securing a rivet slug to structure containing a bore, a substantially cylindrical first counterbore that opens to one side of the work, and a second counterbore that tapers forwardly between the first counterbore and said bore, includes the ... | 09/20/1977 |
| 3952401 | Process for installing fatigue-rated rivets A process of forming an interference fit between a rivet and the perimeter of an aperture through which the rivet shank is inserted finds particular application in the aircraft industry where sheets of component materials are joined together as a sheet as... | 04/27/1976 |
