Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7418756 | Fastener thread cleaning apparatus A fastener thread cleaning apparatus includes a first arm and a second arm each having a first end and a second end. The first and second arms are pivotally coupled together adjacent to the first ends to define a pair of jaws. An abutting side of each of the of the ... | 09/02/2008 |
| 6997654 | Tapping tool for use with drill press A tapping device is configured to be used within a drill press or lathe or other device capable of holding a cylindrical object. The tapping device has an upper projection for being axially fixed in, for example, a drill press. The remainder of the body of the tappi... | 02/14/2006 |
| 6957933 | Threading insert with cooling channels A metalworking apparatus includes a threading insert with a channel-less chip breaker and a holder for holding the threading insert. The threading insert includes (i) one cooling channel disposed on the top side of the threading insert for each crest and each valley... | 10/25/2005 |
| 6786828 | Method of fastening a tool in a tool holder The present invention is for a method of fastening a tool holder. The tool (2) has a front side (6) shaped for use in cold forming of metal wire into nails, screws, etc. The tool holder (4) has a recess (8) shaped for receiving the tool (... | 09/07/2004 |
| 6464592 | Device for cleaning and restoring threads of a threaded article A device for cleaning-and-restoring threads of a threaded article for more easily and efficiently cleaning and restoring threads of various sized threaded article. The device for cleaning and restoring threads of a threaded article includes a pliers compr... | 10/15/2002 |
| 6386804 | Recessed damaged stud re-threading tool A recessed damaged stud re-threading tool including a cylindrical housing having an open lower end, a closed upper end, and a cylindrical side wall therebetween. The open lower end exposes an internal chamber. The cylindrical side wall has a channel exten... | 05/14/2002 |
| 6110047 | Mold for forming a screw with an auger tip A mold for forming an auger tip on a screw is disclosed. The mold has a pair of symmetrical secondary molds each has a base mold (50), a first mold (30) detachably received in the base mold (50) and a second mold (40) detachably received in the first mold... | 08/29/2000 |
| 5507608 | Piloted hand tool adaptor A piloted hand tool adaptor for connecting a conventional rotary hand tool or rotary cutting tool to the chuck of a rotary-operated machine such as a lathe or drill press in order to provide mechanical axial support and alignment of the tool to a work pie... | 04/16/1996 |
| 5490746 | Cylindrical thread cutting aid The disclosure is directed to a pipe cylindrical thread cutting aid that has an inner cylindrical wall, which extends throughout its length; a pair of outer cylindrical walls between which lies a shoulder which is substantially perpendicular to these oute... | 02/13/1996 |
| 5443336 | Die handle oiling system for use with a cutting die head A die handle oiling system for use with a cutting die head comprising a tubular handle having a sealed base end, a sealed tip end adapted for holding a cutting die head thereon, an air cavity for holding air formed therein adjacent to the base end, a plun... | 08/22/1995 |
| 5343787 | Die holder assembly A die holder assembly mounts to a conventional lathe for holding a die to facilitate cutting of a thread into a workpiece. The die holder rotatably rides along an alignment shaft which mounts to the chuck of the lathe. The die holder may be manually turne... | 09/06/1994 |
| 5288181 | Rethreading tool A rethreading tool (10) for reconditioning and rethreading the threads (62) of a stud (60) is described. The tool includes a moveable jaw (26) having an extension (26A) pivotably mounted into a slot 24 of a fixed jaw (16). The extension and a first portio... | 02/22/1994 |
| 5203874 | Device for securing dies on threading machines The device uses a diaphragm cover between the adapter and the die to lock the die into the adapter. The cover is rotatably mounted onto the adapter and has a polygonal bore that matches the polygonal bore of the adapter. The mandrel of the die has a throa... | 04/20/1993 |
| 4968194 | Tap chuck crank A hand crank for use on a drill press mounted chuck during a tapping operation. The crank comprises a body having an aperture which permits the crank to be installed on and in surrounding relationship to the drill press chuck body. A spring biased pin ent... | 11/06/1990 |
| 4927302 | Threading device A threading device which can cut a uniform and symmetrical screw thread in the outer surface of a round bar or tube includes a die nut having internal cutting threads and two axial holes and a guide ring which includes two axial roll pins extending away f... | 05/22/1990 |
| 4642002 | Holder for motor driven tools A holder for supporting motor driven tools against the reaction torque which occurs during operation. Two supports which are spaced from one another are provided for the tool. The supports are rigidly connected with a clamping device. Since only one suppo... | 02/10/1987 |
| 4501519 | Threading die couple A tool couple which is used with a manually-operated threading die to aid in cutting the initial threads on a pipe or bolt. The device is used to force the anterior cutting edge of the die firmly against the outer, unthreaded surface of the workpiece at t... | 02/26/1985 |
| 4349931 | Threading die couple A tool couple which is used with a manually-operated threading die to aid in cutting the initial threads on a pipe or bolt. The device is used to force the anterior cutting edge of the die firmly against the outer, unthreaded surface of the workpiece at t... | 09/21/1982 |
| 4346491 | Thread repair tool The invention, in its preferred form, involves a pair of complementary substantially half-nut sections adapted to be manually assembled about a stud having a damaged thread to be repaired, the side walls of the half-nut sections being substantially arcuat... | 08/31/1982 |
| 4339836 | Lead screw threading assembly The present invention relates to a lead screw threading tool utilized to form external threads on the upper end of a cylindrical shroud of a shock absorber assembly of a vehicular suspension system. The tool includes an expandable collet which is inserted... | 07/20/1982 |
| 4201503 | Thread reconditioning tool A tool for reconditioning or restoring the threads of externally threaded members, such as bolts, studs, and the like, includes, in one embodiment, a collet having a bore formed therethrough with a portion of the bore defining a guide surface, and a threa... | 05/06/1980 |
| 4174646 | Universal tool with gripping action and replaceable jaws A universal tool includes a body with an opening adapted to interchangeably receive cassette-type work elements. Connected to the body is a handle containing clamping means for securing the work piece within the surfaces of the working elements of the cas... | 11/20/1979 |
| 4111591 | Combination tap and die wrench A combination tap and die wrench is provided having a center portion with an aperture extending through the thickness thereof for receiving and retaining tapping apparatus and at least two oppositely extending arm portions extending outwardly from the cen... | 09/05/1978 |
| 4097182 | Combination tap and die wrench A combination tap and die wrench is provided having a center portion and a pair of opposite arm portions extending outwardly from the center portion. The wrench is preferably fabricated from a material with a high strength per weight ratio such as aluminu... | 06/27/1978 |
| 4095917 | Die holder Holder for a threading die. A die holder is provided for threading elongated items of circular cross section, particularly pipe or rod, which can utilize dies of either hexagonal or circular external contour, which can be arranged to reach otherwise awkwa... | 06/20/1978 |
