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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 |
| 7435045 | Steel washer integral with nut/cap assembly A wheel nut and washer assembly for securing a wheel to a motor vehicle axle. The wheel nut includes a body having a longitudinal axis, the nut body also having an axial threaded aperture and a pair of ends, one end being in the form of a smooth steel external surfa... | 10/14/2008 |
| 7329077 | Fastener apparatus for roofing and steel building construction A fastener apparatus includes a frusto-hemispherical head portion having a flat top surface, a curved outer surface, a base portion, and a peripheral edge, with the flat top surface bearing a tool fitting. A downwardly-depending lip portion extends from the head per... | 02/12/2008 |
| 7179032 | Blind rivet There is described an expanding blind rivet assembly having a flange (3) provided with an undercut surface facing the rivet shank. A resilient cap (20) is formed with a cavity (22) having an opening surrounded by an undercut surface (23) ... | 02/20/2007 |
| 7134666 | Support for storing, transporting and using devices applying a sealing compound and uses thereof The invention concerns a support (30) for storing, transporting and using devices (10) for applying a sealing compound onto an element projecting on a surface. The invention is characterised in that it comprises a plurality of said devices borne by a s... | 11/14/2006 |
| 6827539 | Decorative fastener assembly A decorative fastener assembly including a nut insert and a decorative cap. The cap includes a flatted portion sleeved over a flatted portion of the nut insert and further includes a flange portion proximate its open lower end. An O-ring seal is compressed between t... | 12/07/2004 |
| 6634842 | Crime prevention screw, embedding material of screw head, screw-use crime prevention seat and crime prevention screw set A crime preventing screw having a recessed portion for receiving the end of a driving tool. The recessed portion is formed with a recessed engagement portion at a partial lace of an inner wall. An embedding material for embedding in the recessed portion o... | 10/21/2003 |
| 6592314 | Steel washer integral with nut/cap assembly A wheel nut and washer assembly for securing a wheel to a motor vehicle axle. The wheel nut includes a body having a longitudinal axis, the nut body also having an axial threaded aperture and a pair of ends, one end being in the form of a smooth steel ext... | 07/15/2003 |
| 6443680 | Mounting apparatus having a swivel head A mounting apparatus is provided. The mounting device including an anchor secured within a cavity of a cap by a lip. The cavity is configured to allow coaxial rotation of the anchor and cap in a first configuration and rotation of the cap about the longit... | 09/03/2002 |
| 6293744 | Fastener system including a fastener and a cap A fastener system that includes a fastener with a longitudinally extending shank with a head on one end thereof, where the head has a first pattern formed thereon, and a cap that is configured and arranged to be seated upon the head, where the cap include... | 09/25/2001 |
| 6102488 | Torque angle limiting wheelnut A wheelnut for securing a wheel to a motor vehicle axle. The wheelnut includes a body having a longitudinal axis, the nut body also having an axial threaded aperture and a pair of ends, one end being in the form of a conical external surface and the other... | 08/15/2000 |
| 6074148 | Wheelnut/cap assembly with insulating washer An improved capped wheelnut of the type including a nut body having a central threaded aperture and a pair of ends, one end being adapted to engage a wheel, and a cap for said nut body at the other end. The cap has an end wall and a continuous side wall w... | 06/13/2000 |
| 6036420 | Capped wheel nut assembly A capped wheel nut assembly in which a cap is sleeved over a nut. The cap has an outwardly flared marginal portion at the open end crimped over a circular enlargement on the nut. An O-ring seal is compressed between the marginal portion of the cap and the... | 03/14/2000 |
| 5772377 | Capped wheel fastener A flanged wheel fastener includes a fastener body having a threaded portion, a load-bearing surface, an out-of-round surface and a flange situated between the load-bearing surface and the out-of-round surface. A cap is disposed over the out-of-round surfa... | 06/30/1998 |
| 5544992 | Panel fastener having composite turning knob A panel fastener having a turning knob which is attached to a stud in a positive locking relationship. The stud has a shaft with an enlarged stud head and a deformable lip at one end and a threaded region at the opposite end. The hollow cylindrical knob h... | 08/13/1996 |
| 5518351 | Self-tapping screw having threaded nut as a head An article of manufacture consisting of a self-tapping screw with a hex nut, joined to the head thereof where the hex nut including an internally threaded central bore, is used to facilitate the suspension of water pipes from a ceiling member in a buildin... | 05/21/1996 |
| 5370486 | Vehicle locking fastener assembly A vehicle locking fastener assembly primarily adapted for locking a vehicle wheel to a hub of a vehicle. The locking fastener assembly may adapt the form of a lock bolt assembly or a lock nut assembly. This assembly is comprised of a cylindrically shaped ... | 12/06/1994 |
| 5338141 | Corrosion resistant cap for fastener A corrosion-resistant cap for use with a fastener and an elastomeric washer. The cap has a hollow head forming a cavity into which the head of the washer is placed, a perimeter outer skirt, and an inner skirt which can be swaged or bent from a longitudina... | 08/16/1994 |
| 4944644 | Screw fastener cap A cover cap is provided for a screw fastener device of the type comprising a threaded shank and a head, with washer means below said head, said washer means including a rigid spreader washer located over a resilient washer part. The screw fastener device ... | 07/31/1990 |
| 4943197 | Non-perforated nail button A nail button and a method for manufacturing the nail button are disclosed. The nail button consists of a button cap and a base. The base comprises a collet and an attaching means associated with the collet. The collet is characterized in that it is not p... | 07/24/1990 |
| 4793029 | Tiltable button having anti-rotation means A tiltable button comprises a shank and cover or shell. The shank and shell between them have means to prevent relative rotation. In one form the shank has radial recesses and the shell inward deflections which go into the radial recesses. In another form... | 12/27/1988 |
| 4788753 | Expansion compensating two piece button A button for attachment to a sheet of compliant material that includes an elastic body and a cap formed from malleable material secured to the body. The flange of the elastic body has an integral thin ring to which the outer portion of the cap is wrapped ... | 12/06/1988 |
| 4764070 | Capped wheel nut assembly A capped wheel nut assembly in which a cap sleeved over the nut is secured to the nut by an adhesive. The adhesive has sufficient flexibility to eliminate rattle and preferably is a silicon adhesive. The cap has an enlarged marginal portion at the open en... | 08/16/1988 |
| 4759672 | Fastener head with stabilizing ring A fastener head, preferably a capped fastener head, including a sloping flange surrounding a central wrenching portion, having wrenching surfaces, such as axial hexagonal surfaces. A rib disposed on the sloping flange provides stability to a fastener head ... | 07/26/1988 |
| 4698881 | Socket element assembly for snap fasteners A socket element assembly for snap fasteners is composed of a socket member and a capped eyelet adapted to be joined together with a garment fabric sandwiched therebetween. The socket member and the capped eyelet have substantially the same outside diamet... | 10/13/1987 |
| 4460300 | Fastener with head cap having a concealed edge This invention relates to a screw type fastener having a radially enlarged driving head and a thin walled head conforming cap having a skirt which is designed to be folded inwardly beneath the head in a lapped condition beneath the head to conceal the exp... | 07/17/1984 |
| 4457654 | Tool gripping fastener A fastener comprising a head, a shank, and a cap. The head has a recess in its top surface dimensioned to accommodate an appropriate tool for installing the fastener. The cap covers a substantial portion of the head and conforms closely to the head, exten... | 07/03/1984 |
| 4129060 | Screw head cover A self closing cover for the head of a screw is integrally formed of a resilient polymeric resin and includes a flat annular washer having upwardly projecting closure flaps along its periphery and connected to the washer for swinging to interfitting dome ... | 12/12/1978 |
