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 |
| 7871241 | Self-monitoring system for evaluating and controlling adjustment requirements of leakage restricting devices in rotodynamic pumps A self-monitoring adjustment system is provided for evaluating and effecting adjustment of the leakage restricting mechanism between the rotating and non-rotating elements of a rotodynamic pump to restrict leakage and to establish desired gap dimensions between the ... | 01/18/2011 |
| 7553126 | Device for varying the section of the throat in a turbine nozzle A device for varying the section of the throat of a turbine nozzle, the nozzle being formed by a plurality of stationary vanes extending radially between outer and inner annular platforms and spaced apart from one another in order to define a throat presenting a min... | 06/30/2009 |
| 7201556 | Displacement casing A rotor system is provided whereby a rotary assembly such as a fan blade combination in a jet engine is brought into rub contact with a casing such that sensors detect vibration. The casing is then retreated in order to open the gap to a desired value for engine per... | 04/10/2007 |
| 7200198 | Recirculating target and method for producing radionuclide An apparatus for producing a radionuclide includes a target chamber, a particle beam source operatively aligned with the target chamber, and a regenerative turbine pump for circulating a target fluid through the target chamber via first and second liquid transports.... | 04/03/2007 |
| 7189057 | Turbine shroud segment attachment A turbine shroud segment attachment with a casing (1) and several shroud segments (2) arranged in the casing (1), wherein the individual shroud segments (2) are located in the casing (1) with a circumferential clearance (3) ... | 03/13/2007 |
| 7181896 | Multi-rotor fan assembly for a cotton picker A multi-rotor blower fan assembly for a cotton picker utilizes a plurality of separate fan enclosures each containing a fan for supplying an individual air flow to a picker unit of the picker, the fans being mounted on a common shaft for rotation therewith, with a u... | 02/27/2007 |
| 7168228 | Multi-rotor fan assembly for a cotton picker A multi-rotor blower fan assembly for a cotton picker utilizes a plurality of separate fan enclosures each containing a fan for supplying an individual air flow to a picker unit of the picker, the fans being mounted on a common shaft for rotation therewith, with a u... | 01/30/2007 |
| 7156614 | Centrifugal pump with multiple inlets A centrifugal pump assembly that includes an inlet housing that defines a inlet chamber and at least one inlet port in fluid communication with the inlet chamber. A volute forming part of the assembly defines an outlet port. An impeller is mounted for rotation at le... | 01/02/2007 |
| 7128525 | Air pump An air pump has a casing, a motor assembly, a fan assembly, a faceplate and a sliding valve assembly. The motor assembly is mounted in the casing and has a motor. The fan assembly has a fan housing, an inlet manifold, an inlet plate and a centrifugal impeller. The c... | 10/31/2006 |
| 7037069 | Impeller and wear plate In one aspect, there is provided a wear plate for use in combination with a centrifugal pump and impeller. The wear plate has a wear surface defined by a substantially flat surface, a truncated conic section, and/or a curvilinear solid of revolution formed by revolv... | 05/02/2006 |
| 6988870 | Casing for a centrifugal pump A pump casing for a centrifugal pump of the type that is used to process abrasive slurries is disclosed having at least one side or side liner that has a radially extending portion oriented toward the cutwater of the pump casing to localize the abrasive wear caused ... | 01/24/2006 |
| 6887034 | Centrifugal pump having adjustable clean-out assembly A centrifugal pump having an adjustable clean-out assembly (60), the position of which determines the face clearance between a wear plate (72) and an impeller (20). The clean-out assembly includes an end cover (63) that threadedly mounts ... | 05/03/2005 |
| 6736594 | Axial-flow type hydraulic machine In an axial flow hydraulic machine, a plural number of grooves 5 are formed on an inner surface of a casing, directed into a pressure gradient direction, for connecting between an inlet side of an impeller 1 and an inside of blade residing region on th... | 05/18/2004 |
| 6599086 | Adjustable pump wear plate positioning assembly An adjustable wear plate positioning assembly for a centrufigal pump having a casing with an inlet port offset from a pump impeller mounted within an impeller housing. The positioning assembly includes a wear plate carrier extending between a front wall o... | 07/29/2003 |
| 6571563 | Gas turbine engine with offset shroud A gas turbine engine having a housing and an axially extending shaft journaled to the housing by two axially spaced apart bearings. The bearings are located along the shaft so as to define an overhung shaft portion. A rotating component such as a turbine ... | 06/03/2003 |
| 6454556 | Vacuum and pressure tight cooling-ventilating device for thermoforming stations A vacuum and pressure tight cooling or ventilating device, specifically designed for thermoforming stations, comprises a shutter element for opening and closing respectively the cooling and ventilating device, the shutter element being mounted on an air i... | 09/24/2002 |
| 6382905 | Fan casing liner support A casing for the fan section of an aircraft gas turbine engine of the turbofan type. The casing includes an inner filler material and is defined by an outer shell and an inner liner that is spaced radially inwardly from the outer shell. The inner liner is... | 05/07/2002 |
| 6375416 | Technique for reducing acoustic radiation in turbomachinery Apparatus for reducing acoustic radiation which occurs during the operation of turbomachinery includes a shroud having a generally cylindrical inner surface and a coaxial rotor having a plurality of blades extending generally radially outwardly at equally... | 04/23/2002 |
| 6106225 | Submersible fountain pump design A pump (10, 30) is disclosed which has an intake (16). A rotatable volute (22) can be positioned at least two different positions on the housing (12) of the pump so that the inlet can be at the top of the pump or at the bottom of the pump for use in dirty... | 08/22/2000 |
| 5971702 | Adjustable compressor bundle insertion and removal system A rotary machine, such as a compressor, includes a casing having an annular cavity. The cavity is stepped to include a first circumferential surface of a first size and a second circumferential surface of a second size, less than the first size. At least ... | 10/26/1999 |
| 5921748 | Centrifugal pump A centrifugal pump comprises an impeller (2a and 2b) which is rototable about an axis (X--X) inside a static volute (1). The pump is further provided with a sealing arrangement (11). The sealing arrangement (11) reduces or substantially eliminates the cle... | 07/13/1999 |
| 5689403 | Intercooled electronic device An intercooled electronic device, includes a thermally conductive chassis (110), a substrate (120) mounted onto the chassis (110), a housing (104) formed around the chassis (110), and a cooling fan (130) mounted internally within the housing (104). The su... | 11/18/1997 |
| 5685692 | Pump housing assembly A pump housing assembly having two parts, each part including an outer casing and an inner lining of elastomeric material. An insert component comprising a body, including a lining section, is sandwiched between the housing parts and cooperates with the i... | 11/11/1997 |
| 5346363 | Liner for a water jet propulsion pump A liner of the intake casing for a water jet propulsion pump wherein the liner is made of a resilient material and is disposed internally of said casing surrounding the water impeller and is clamped in position by the pump assembly.... | 09/13/1994 |
| 5271713 | Adjustable inlet for a harvester fan A harvester fan includes a donut-shaped insert which is rotationally molded with button-head bolts spaced therearound. The rotor-end of the bolts are molded into the sidewall of the insert so the sealing area of the insert remains planar for maximizing se... | 12/21/1993 |
| 5197863 | Bearing fluid distribution systems for liquid ring pumps with rotating lobe liners In liquid ring pumps having rotating lobe liners supported by a bearing fluid in an annular clearance between the liner and the surrounding housing, the housing has at least one substantially annular channel formed in the housing for distributing the bear... | 03/30/1993 |
| 4917571 | Flow-stabilizing volute pump and liner Uniquely contoured interior surfaces have been found to stabilize the flow patterns through centrifugal pumps of the volute type, especially pumps having wide impellers and wide volutes for pumping slurries. The contoured interior surfaces may be provided... | 04/17/1990 |
| 4776760 | Reinforced rubber liner for centrifugal pump casings A half-shell rubber lining for a centrifugal pump reinforced in selective regions of its outer surface with an adhesively bonded fabric mesh impregnated with a thermoset resin is disclosed.... | 10/11/1988 |
| 4759687 | Turbine ring incorporating elements of a ceramic composition divided into sectors A turbine ring comprises an annular support in two parts and a ring of ceramic sectors for sealing purposes. The two parts of the support are interconnected by an axial groove and a sliding male part. Each part comprises an axial annular groove in which i... | 07/26/1988 |
| 4650396 | Externally adjustable axial location for a vane carrier in a turbine A vane carrier (1) is axially located in an upper casing part (2) by means of a wedge (3). On the one hand, axial location, attainable by simple means, of the vane carrier (1) is desirable after the assembly of the upper casing parts (2). On the other han... | 03/17/1987 |
| 4595318 | Forage blower having replaceable wear liner A forage blower having an upwardly extending, tangential blower outlet transition member which is hinged along one of its sides so as to be moved to thereby expose the inside of the blower housing. The blower housing includes a two-portion rim sheet. A we... | 06/17/1986 |
| 4566850 | Pump A pump comprising an outer casing, an inner liner and a rotatable impeller, the liner being mounted to the casing in a manner such that the liner is substantially secured against rotational movement within the casing but can expand, contract or deflect ra... | 01/28/1986 |
| 4527948 | Pump adjustment assembly A centrifugal pump for pumping slurries and other abrasive liquids having an axial inlet and a circumferential outlet, an impeller rotating within a housing and a suction liner secured to the housing wherein the impeller has a radial nose projecting towar... | 07/09/1985 |
| 4521151 | Centrifugal slurry pump A pump, for example, a centrifugal slurry pump, has a casing (10) with an inlet (12) and an outlet (14). The casing (10) and a separate backliner (28) define a chamber (16) in which an impeller (18) is arranged to be rotated by way of a drive shaft (20) w... | 06/04/1985 |
| 4502276 | Casing structure for a gas turbine engine A casing structure for a gas turbine engine comprises an outer load-bearing casing within which is supported an inner casing which forms the static structure of a compressor. Bearing panels carried from the outer casing carry the rotor of the compressor a... | 03/05/1985 |
| 4337016 | Dual wall seal means Apparatus for confining cooling air to a flowpath between an outer case and adjacent structure is disclosed. Various construction details which enable the means to sealingly engage the adjacent structure to block the leakage of cooling air and to accommod... | 06/29/1982 |
| 4177005 | Variable-throat spiral duct system for rotary stream-flow machines The inner spiral wall of each spiral feed duct of a turbine is provided with a slidable extension tongue with an end portion of spiral curvature mounted on a carrier plate for rotation about the machine axis. Movement of the tongue to extend the length of... | 12/04/1979 |
| 4069662 | Clearance control for gas turbine engine The clearance between the outer air seal of a gas turbine engine and the tip of the turbine rotor is controlled by selectively turning on and off or modulating the cool air supply which is directed in proximity to the air seal supporting structure so as t... | 01/24/1978 |
| 4053255 | Self-adjusting spacer for centrifugal pumps This invention relates to a self-adjusting spacer mechanism for being interposed in a centrifugal pump between a volute and a barrel end surface for regulating the spacing therebetween. The spacer includes a first inclined surface and an outer surface cou... | 10/11/1977 |
