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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8016533 | Lock nut with low on/high off torque control A lock nut having a plurality of sides having a radius crimp which is consistent with the radius of the threaded bore in the lock nut. Preferably, the lock nut is crimped using a three sided die, each die having a radius crimp with relief angles. The relief angles a... | 09/13/2011 |
| 7347189 | Fuel injector clamp with retaining sleeve The following describes an apparatus for and method of clamping a device, such as a fuel injector, to a platform, such as a cylinder head, and thereafter removing the device from the platform together with the clamp. A retaining sleeve is deformed such that the reta... | 03/25/2008 |
| 7237646 | Electrically driven power steering apparatus An electrically driven power steering apparatus is structured such that a large impact on a rack shaft (22) occurs upon an impingement of a steering stopper, and, even when an axial force acting on a ball bearing (25) of a presser member (30) be... | 07/03/2007 |
| 7218192 | Lockable fastener and circuit breaker employing the same A lockable fastener connects together a plurality of components of a circuit breaker and maintains electrical conductivity between the components while permitting relative movement therebetween. The lockable fastener includes a first clinch nut member and a second c... | 05/15/2007 |
| 7198444 | Multi-grip blind rivet A multi-grip blind rivet 74 includes a rivet body 82, adapted to receive a portion of a mandrel 76. A plurality of indentations 88 are formed in an outer surface 86 of the rivet body 82 in each of three axially spaced transa... | 04/03/2007 |
| 7033120 | Blind fastener and drive nut assembly and method of installation thereof A blind type fastener for securing a plurality of workpieces is provided that has a sleeve, a pin member and a drive nut. The sleeve has a body that is internally threaded along a portion of the sleeve, a head positioned at one end of the sleeve and an internally un... | 04/25/2006 |
| 6908395 | Lock nut member A threaded locking beam nut having a plurality of locking beams configured such that the inside edge surface of each locking beam has a radially inwardly angled surface thereby forming substantially a V-shaped channel between adjacent beams. ... | 06/21/2005 |
| 6584915 | Joint structure A joint structure including a nail plate having an imperforate central region and being provided between two bearer components, and a plurality of nails adapted to extend through a first of the components, the imperforate region of the nail plate, and int... | 07/01/2003 |
| 6464439 | Low tolerance threaded fastener A threaded member such as a bolt, nut, or pipe has a threaded portion on a body of the member. The threaded portion of the member includes a first threaded section, a second threaded section, and a third threaded section. The first and third threaded sect... | 10/15/2002 |
| 6325740 | Toroidal-type continuously variable transmission The hardness of the outer peripheral surface of a small-diameter portion 47 and one side surface of a collar portion 52, which respectively rub against a belleville spring 39a, is set at HRc45 or higher, thereby enhancing the wear resistance of these surf... | 12/04/2001 |
| 5827027 | Nut free from inadvertent loosening and a method of making same A nut free from inadvertent loosening has an annular lug with a plurality of generally upright grooves formed in an outer peripheral surface of the annular lug at angular intervals so as to divide the annular lug into a plurality of wall segments. Each wa... | 10/27/1998 |
| 5713686 | Prevailing-torque adjusting sleeve An improved adjusting sleeve for connecting together a pair of opposite, generally-collinear threaded rods, as may be found in automotive front-end suspensions, includes an elongate, tubular body. While the sleeve may comprise differing numbers of surface... | 02/03/1998 |
| 5499893 | Flexible lock nut and method of manufacturing A low profile lock nut for receiving a threaded bolt therein including a body portion having a threaded axial bore extending therethrough with first and second opposite ends, a crown member for providing a predetermined degree of flexibility, at least in ... | 03/19/1996 |
| 5035852 | Tapered leaf support pin for operating plant guide tubes A mounting system for removably mounting the lower flange of a control rod guide tube over an opening in the upper core plate of a nuclear reactor includes support pins having first and second pin portions. The first pin portion passes through the guide t... | 07/30/1991 |
| 4890965 | Fastener with relieved thread section ends A lock nut has locking members with internal thread segments formed between slots, the segment ends being relieved to prevent galling; also, the members are deformed so that thread segments therein extend along generally circular arcs that have axes offse... | 01/02/1990 |
| 4778318 | Self-locking blind fastener In a blind fastener (20) of the kind comprising a tubular nut (22) having shank (28) with a head (30) at one end and a tapered nose (32) at the other end, a headed bolt (24) threadedly engaged in the bore (34) of the nut (22), and an expansible sleeve (26... | 10/18/1988 |
| 4768908 | Self-locking screw - nut assembly A self-locking screw-nut assembly is provided characterized in that the screw (2) has one or more median threads (4) of reduced diameter, whereas the nut (1) is designed to be deformed locally by an external action at the level of these reduced diameter t... | 09/06/1988 |
| 4724610 | Fastener installation apparatus To attach a nut to a plate-shaped workpiece, especially to a metal sheet, in such a way that it has self-locking properties without additional aids or parts, the force fastening the nut and acting on a free thrust surface of the nut is divided into at lea... | 02/16/1988 |
| 4642869 | Process of attaching a nut to a plate-shaped workpiece To attach a nut to a plate-shaped workpiece, especially to a metal sheet, in such a way that it has self-locking properties without additional aids or parts, the force fastening the nut and acting on a free thrust surface of the nut is divided into at lea... | 02/17/1987 |
