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 |
| 7481350 | Socket-welded pipe joint A welded pipe joint having reduced internal stresses comprises a pipe, a socket fitting, and an annular weld. The end surface of the fitting is chamfered in a concave profile, so that the weld profile subtends an angle of from about 100 degrees to about 120 degrees,... | 01/27/2009 |
| 6589671 | Method for joining a cast part and a case-hardened steel part and component manufactured according to said method A method for joining a first part to a second part wherein the first part comprises machine cast iron and the second part comprises case-hardened steel comprises abrading a surface on each of the parts which are to be welded together with a groove, fittin... | 07/08/2003 |
| 6554176 | Method of manufacturing a vehicle body and frame assembly including an energy absorbing structure A method of manufacturing a vehicle frame assembly includes forming a crush box that absorbs energy in a controlled manner during a collision. The crush box is formed by providing first and second members, each including a web portion having first and sec... | 04/29/2003 |
| 6273325 | Nozzle assembly and method of manufacturing same A method of manufacturing a nozzle assembly and a nozzle formed thereby in which first and second body portions are formed and connected together to form an enclosure, and one end of the enclosure is connected to a flange assembly.... | 08/14/2001 |
| 6070787 | Method of manufacturing chip components A chip component is manufactured through a step of burning a unburned unit element made of ceramics having prism-shaped parts at its ends, a step of polishing the edges of the burned unit element, and a step of forming a resistor conductor, an electrode c... | 06/06/2000 |
| 5839644 | Method of coupling and forming copper fittings with solder therein An improved fluid fitting made from a portion of copper tubing has at least one annular cavity disposed in its inner periphery adjacent to each open end of the fitting. Solder is disposed in and substantially fills the at least one annular without extendi... | 11/24/1998 |
| 5513794 | Method for fixing stopper ring to pipe spigot A method for fixing a stopper ring to the outer periphery of the spigot of a cast iron pipe for preventing separation of the pipe from another pipe. A single or plural annular grooves are formed on the inner periphery of the stopper ring, and a brazing fi... | 05/07/1996 |
| 5497544 | Stator frame fabrication A stator frame comprises a connection end (CE) casting having at least one CE integral partial tie bar extending from an inboard side of the CE casting and a pinion end (PE) casting having at least one PE integral partial tie bar extending from an inboard... | 03/12/1996 |
| 5348212 | Welding method for rotatable shafts An improved welding method is provided for repairing broken rotors. The welding method preferably employs a 2.25Cr-1.0Mo-0.3V-type filler metal, preferably deposited using a narrow groove welding technique. The broken pieces are aligned end to end. A narr... | 09/20/1994 |
| 5082166 | Connector beam joining method A connector/beam joining method for joining a beam and a connector having a base plate and a projection, both formed into a T-shape in cross-section, in which the edge of a welding groove provided on the end of the projection of the connector is matched w... | 01/21/1992 |
| 4993620 | Solder-electroformed joint for particle beam drift tubes The face plates of a drift tube have their joints with a central cylindrical body sealed by utilizating two metallurgical techniques. The first technique involves the soldering of interface surfaces at the joints between the face plates and the body. The ... | 02/19/1991 |
| 4841802 | Modified fast fade drive axle housing A modified fast fade rear axle housing of rectangular cross-section having a shortened neck shape to maximize the torsional strength of the housing in the expanded annular section where the transition zone joins the center differential receiving portion a... | 06/27/1989 |
| 4762266 | Method for performing remotely-manipulated work on a conduit of a nuclear facility The invention is directed to a method for performing remotely-manipulated rk on a conduit of a nuclear facility. The method of the invention is for maintaining pipe conduits in a radioactively contaminated cell such as a large-area cell of a reprocessing ... | 08/09/1988 |
| 4563130 | Multistage pump-turbines A turbine shaft structure of a multistage pump-turbine comprises at least two parts of upper and lower shaft parts generally connected at a runner portion of the highest pressure stage at which adverse external or internal effect is likely to be mostly ap... | 01/07/1986 |
| 4255641 | Method of outside welding of pipelines The specification discloses a method and apparatus for assuring the integrity of outside weldings of pipelines. Pipe sections are prepared for welding by forming a beveled profile with a relatively narrow annular contact band on the ends of each pipe sect... | 03/10/1981 |
| 4216896 | Automatic pipe welding apparatus and method An expandable band is employed to provide a mold on the interior of the joint into which the weld puddle is flowed which may be made of any appropriate material, but preferably is copper. The back-up band is carried on a set of rounding jacks which engage... | 08/12/1980 |
| 4208003 | Method of joining shaft sections A method of joining shafts is disclosed in which a welded joint is formed between the shaft ends of, for example, a turbine and a generator inside of an assembled turbogenerator structure. A built-up weld portion is provided on the end of each shaft, whic... | 06/17/1980 |
| 4125217 | Method of connecting hollow steel column to a hollow steel base member A steel column base member for connecting a hollow or box-shaped structural steel column member having square, rectangular or annular section, to a concrete foundation, which base plate member is an integral cast or forged body comprising a bottom plate m... | 11/14/1978 |
| 4004343 | Method of making core tubes for solenoids A method of forming the core tube of an electro-magnetic solenoid comprises forming and positioning the end portions of the core tube and centrifugally casting the non-magnetic intermediate portion of the core tube.... | 01/25/1977 |
