Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7228935 | Attachment pin for an exhaust-gas muffler The invention relates to an attachment pin (1) for fixing an exhaust-gas muffler (2) in an apparatus part (4) of a portable handheld work apparatus (5) driven by an internal combustion engine. The exhaust-gas muffler (2) includes e... | 06/12/2007 |
| 7014403 | Finish screw fastener A fastener including a head having a screw driver or wrench engagement feature. The fastener includes a threaded shank extending from the head. A plurality of voids or scores in the shank spaced from but near the head permit rotational torque on the head in one dire... | 03/21/2006 |
| 6907699 | Gypsum wallboard fastener A fastener for securing a 0.625 inch (⅝ inch) thick gypsum wallboard panel to a wooden building frame. The fastener includes a body having a predetermined axial length. The body includes a cupped head at one axial end of the body, having a diameter that is at leas... | 06/21/2005 |
| 6436100 | Cannulated internally threaded bone screw and reduction driver device A method and apparatus for the reduction and fixation of a fractured bone, comprising the steps of drilling a plurality of bores in different bone sections of a fractured bone site and then driving bone screws having an elongated cylindrical shank with ex... | 08/20/2002 |
| 5653006 | Passenger-side airbag module darted end caps and method of assembly The screws which are normally employed to attach the end plates to the trough-shaped main body of a passenger-side airbag module reaction canister are replaced by impact-driven darts. The darts are made of material harder than that of the main body and in... | 08/05/1997 |
| 5409323 | Fastener system for attaching cushions to chairs A releasable quick-coupling fastener assembly includes a backing sheet (22) having a number of apertured ovaloid bosses (24, 76-90) each presenting a resilient inboard wall structure (108) and resilient inner connective walls (110 and 112) from which depe... | 04/25/1995 |
| 5375957 | Impact drivable fastener An impact drivable fastener, suitable for fastening sheet metal articles, includes a shank extending from a tip (10) at one end, which tip is adapted to be driven through a metal sheet, and a head (10) at the other end. A large pitch multi-start thread fo... | 12/27/1994 |
| 5190424 | Bolt for use with resin clips Disclosed is a stud bolt having nonsymmetrical screw threads projecting from the shank thereof, wherein each screw thread of the stud bolt has an inwardly concave curved flank and an outwardly convex curved flank. With this arrangement, the load required ... | 03/02/1993 |
| 4980782 | Software protection and identification system A method of protecting machine readable signals recorded on magnetic recording media from unauthorized duplication and use. The signals to be protected are recorded on an authorized magnetic recording medium having a relatively high coercivity. An attempt... | 12/25/1990 |
| 4979858 | Guidance device Improved guidance devices, particularly guidance flutes and guidance tips, as used to guide pointed fasteners, particularly drive pins of different lengths and threaded studs, as such fasteners are driven through muzzle bushings of powder-actuated tolls, ... | 12/25/1990 |
| 4948312 | Fastening element with guide member A fastening element to be driven into a hard receiving material, such as metal, includes a head at its trailing end and an axially extending shank projecting from the head to the leading end with a tip at the leading end. At least an axially extending sec... | 08/14/1990 |
| 4925353 | Drive fastening system A fastening system for securing an article to a base uses a conventional drive fastener. A reaction surface on the article contacts the bearing surface on the underside of the fastener head causing the fastener head to tilt relative to the body of the fas... | 05/15/1990 |
| 4662808 | Wall anchor A wall anchor having a socket and a drive pin. A passage within the socket receives the drive pin. Fingers on the leading end of the socket have walls in the path of the pin. The fingers pivot into contact with the back surface of the wall by a cam action... | 05/05/1987 |
| 4572720 | Wood screw Disclosed is a wood screw with a head separated from a threaded extremity by an unthreaded shank whose diameter is less than the outer diameter and only slightly larger than the root diameter of the thread. A cylindrical or tapering neck inserted between ... | 02/25/1986 |
| 4533288 | Drive fastener A drive fastener designed to be hammered into penetrable material. One end of the drive fastener is split. The opposite end of the drive fastener contains threads. A pair of nuts are threaded together on the threaded end of the drive fastener to receive t... | 08/06/1985 |
| 4228723 | Fastener recess A recess for fasteners such as screws, bolts and the like having, in axial alignment with the shank, a central recess of a conic-frustum shape which serves as a natural center for a driver tool or for a drill bit if it becomes necessary to drill out the f... | 10/21/1980 |
| 4042342 | Blanks for making self-thread forming threaded fasteners A blank is formed for providing a self-thread forming threaded fastener having a straight thread on a shank of circular cross section and tapered thread of the work-entering end. The tapered portion of the thread is of lobular root, pitch and crest surfac... | 08/16/1977 |
| 3977142 | Floor nail This invention provides a fastener which includes a shank having a head on one end and a conical portion on the other, the apex of the conical portion constituting a piercing point for the fastener. The shank includes a smooth cylindrical portion adjacent... | 08/31/1976 |
