Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7438540 | Two-stage rotary compressor In a two-stage rotary compressor of the present invention, an oil supply hole connecting an oil reservoir on a bottom portion in a closed vessel to a suction port formed in a lower supporting member is provided in the lower supporting member attached to the lower si... | 10/21/2008 |
| 7381039 | Rotary compressor having a stepped cover of a discharge muffler chamber A rotary compressor including upper and lower cylinders constituting first and second rotary compression elements; a lower support member which closes an opening of the lower cylinder and which has a bearing as a bearing portion of a rotation shaft; a discharge muff... | 06/03/2008 |
| 7361005 | Rotary compressor having discharge muffling A high inner pressure type multistage compression rotary compressor having a support member blocking an opening of a cylinder constituting the rotary compression element and having a bearing of a rotary shaft. The surface of the support member on a side opposite to ... | 04/22/2008 |
| 7255929 | Use of spray coatings to achieve non-uniform seal clearances in turbomachinery The invention provides spray coatings to achieve circumferentially non-uniform seal clearances in turbomachines. In steam and gas turbines it is desirable to assemble the machines with elliptical seal clearances to compensate for expected casing distortion, rotordyn... | 08/14/2007 |
| 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 |
| 7210913 | Scroll fluid machine with a silencer A scroll fluid machine comprises a housing, a drive shaft, a stationary scroll fixed to the housing, and an orbiting scroll driven by the drive shaft. A gas from the outer circumference of the housing is introduced between the stationary and orbiting scrolls, and se... | 05/01/2007 |
| 7189068 | Sound reduced rotary vane compressor A rotary vane compressor having features for reducing sound emitted from the compressor during operation. The sound reduction features include and relate to specific components of the compressor. Specifically the features relate to (1) the compressor motor; (2) a no... | 03/13/2007 |
| 7188621 | Portable ventilator system A portable ventilator uses a ROOTS-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that intera... | 03/13/2007 |
| 7179069 | Motor compressor lubrication A rotary machine is powered by a drive shaft having a bore extending through it. A single piece lubricant flinger is disposed within the bore to form a lubricant pump. The lubricant flinger includes an upper plate located within the bore and a washer located adjacen... | 02/20/2007 |
| 7174917 | Inlet piece for a liquid-injected compressor element Inlet piece for a liquid-injected compressor element, characterized in that it comprises a sleeve (8) which consists of a casing (11), a bottom wall (12) provided with an opening (13) and a top wall (14) which is entirely tight, a ... | 02/13/2007 |
| 7144233 | Scroll fluid machine with a silencer A scroll fluid machine comprises a housing, a driving shaft, a fixed scroll fixed to the housing, and an orbiting scroll. A gas introduced from the outer circumference of the housing is compressed towards the center of the housing with revolution of the orbiting scr... | 12/05/2006 |
| 7134855 | Vane pump with integrated shaft, rotor and disc A rotary vane suction pump that includes a housing that defines a pump chamber. A shaft is rotatably mounted to the housing. A rotor is fixed to the front end of the shaft to rotate in unison with the vanes. The vanes that form the fluid cavities, into which the flu... | 11/14/2006 |
| 7124775 | Micro pump device with liquid tank A micro pump device with liquid tank comprises a liquid tank being made of transparent material; and a micro pump having an inlet positioned in center of the liquid tank and the micro pump locating the side of said liquid tank. And, the liquid tank further includes ... | 10/24/2006 |
| 7037085 | Dual gear single outlet material pump and method of constructing such a pump A dual gear, single outlet material pump includes a base plate, a lower gear plate and two associated gears, a spacer plate, an idler shaft, a drive shaft, an upper drive gear, and an upper gear plate. An upper idler gear is housed within a tri-lobed aperture of an ... | 05/02/2006 |
| 6790019 | Rotary vane pump with multiple sound dampened inlet ports A rotary vane pump has an open ended pump cylinder mounting a drive motor at one end and a ported end plate and sound chamber at the other end. The cylinder contains a rotor mounted to an eccentric drive shaft and having vane grooves receiving slidable vanes contact... | 09/14/2004 |
| 6743002 | Rotary fluid pressure device and improved integral brake assembly A gerotor motor including a brake package, and a method for setting the load holding torque of the brake package. The endcap assembly (21) defines a set of internal threads (85) disposed adjacent a brake package piston member (75). An enclosure ... | 06/01/2004 |
| 6733258 | Gas compressor apparatus having a discharge pulsation reducing cooler A discharge pulsation reducing cooler B is provided to cover the circumferential periphery of a compressor A. The discharge pulsation reducing cooler B has a delivery passage 41 and a jacket 43 covering that, and cooling water is circulated through a p... | 05/11/2004 |
| 6692244 | Hydraulic pump utilizing floating shafts A hydraulic pump assembly includes a pump housing having a chamber defined therein, wherein the chamber includes a pair of cylindrically shaped portions each defining at least one end wall. The hydraulic pump assembly also includes a pair of rotary pump e... | 02/17/2004 |
| 6638043 | Diffuser for high-speed screw compressor A screw compressor including a housing containing at least one rotor for generating a discharge flow in a discharge direction; a diffuser member communicated with the housing to receive the discharge flow, the diffuser extending from the housing in the di... | 10/28/2003 |
| 6506029 | Gear pump A gear pump for the power steering of a motor vehicle is integrated into the housing of the drive unit and is surrounded by both the discharge space and the intake space, which extend over the entire length of the housing Ribs are provided in the discharg... | 01/14/2003 |
| 6488488 | Rotary helical screw-type compressor having an intake filter and muffler The drive gear 19, 21 and the synchronizing gear 25, 27 for the two rotors 9,11 of a screw compressor are both located at the pressurized end of the rotor housing 3. At the suction end of the rotor housing 3 is only the bearing 53 for the suction side sha... | 12/03/2002 |
| 6461132 | Scroll compressor with unique mounting of non-orbiting scroll A scroll compressor has a non-orbiting scroll axially secured within an end cap. The compressor is of the sort wherein the back pressure chamber is defined behind the orbiting scroll. In one embodiment a spring biases the non-orbiting scroll toward the or... | 10/08/2002 |
| 6422842 | Scroll compressor discharge muffler A scroll machine is provided with a muffler mounted to the fixed scroll of the scroll machine for improved sound attenuation.... | 07/23/2002 |
| 6419472 | Gear unit for a deep-borehole pump The gear unit for a delivery pump installed in a deep borehole has a toothed gear unit with a pinion located on input shaft (2) and a gear wheel engaged with the pinion, which gear wheel is located on a vertical output shaft (5) driving the delivery pump.... | 07/16/2002 |
| 6345966 | Scroll compressor with dampening bushing A low noise scroll compressor assembly has an orbiting scroll supported for movement about an axis, and a non-orbiting scroll mounted to the crankcase housing along the axis. The non-orbiting scroll is mounted to the crankcase housing by at least one guid... | 02/12/2002 |
| 6331103 | Fluid machine having a pair of rotors and a silencer A fluid machine includes: a casing having an operating chamber provided in the casing; a pair of rotors rotatably mounted in the operating chamber which have each rotor shaft in each axial direction; an intake opening and discharge opening for fluid and a... | 12/18/2001 |
| 6287098 | Muffler for rotary compressor Rotary compressor including a main bearing having a discharge passage for discharging compressed gas and a boss for inserting a motor shaft, the main bearing forming a component of a compression chamber, and a muffler having a boss hole for passing the bo... | 09/11/2001 |
| 6241496 | Hermetic rotary compressor The present invention relates to a hermetic rotary compressor. More particularly, since the conventional rotary compressor has problems that the effect of a surge recess for reducing noises due to pressure pulsation is insufficient, and it is impossible t... | 06/05/2001 |
| 6220839 | Scroll compressor discharge muffler A scroll machine is provided with a muffler mounted to the fixed scroll of the scroll machine for improved sound attenuation.... | 04/24/2001 |
| 6158995 | Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing A sealed compressor has a sealed casing in which a motor section and a compression section are both accommodated, and also has a pipe connector including at least one sleeve. The sleeve has a first end and a second end opposite to each other. The first en... | 12/12/2000 |
| 6158989 | Scroll compressor with integral outer housing and fixed scroll member An improved housing for scroll compressor has the end cap housing formed integrally with the fixed scroll member. The end cap housing is preferably welded to a tubular housing enclosing the scroll compressor. Most preferably, the end housing has inner and... | 12/12/2000 |
| 6158983 | Pump having muffler for attenuating noise An apparatus (30) for use in pumping hydraulic fluid includes a pump unit (32) which is driven by an electric motor (34). The electric motor (34) is mounted on a tubular stem (108) which extends axially outward from a manifold plate (44). A stator (100) o... | 12/12/2000 |
| 6142757 | Integral oil pump An integral oil pump for an apparatus having a plurality of bearings, the oil pump comprising a housing with an opening for a shaft, a cavity within the housing, a ring gear encircling the shaft with clearance between the shaft and an inner surface of the... | 11/07/2000 |
| 6132194 | Low cost compact design integral brake An integral brake assembly for a gerotor motor of the type including valving (41) disposed forwardly of the gerotor gear set (15). Orbital and rotational movement of the gerotor star member (31) is transmitted to an output shaft (43) by a main drive shaft... | 10/17/2000 |
| 6109902 | Liquid-injected compressor with at least two cooperating compressor elements A liquid-injected compressor with at least two cooperating compressor elements (2 and 3) is provided. The compressor elements are mounted in a housing (1). At least one of the compressor elements is rotatable and is bearing-mounted with a shaft end (7, 8,... | 08/29/2000 |
| 6106247 | Scroll-type fluid displacement apparatus including an eccentric crank mechanism having an elongated shaft A scroll-type fluid displacement apparatus including at least two scroll members, with each scroll member having a plate and spiral involute extending from the plate. The spiral involutes mesh to define fluid voids between the scroll members that become s... | 08/22/2000 |
| 6082984 | Fluid pump having pressure pulsation reducing passage A fuel pump comprises a pump unit and a motor unit. The pump unit is a trochoid gear type having rotors in a pump chamber defined by a pair of side plates and a cylindrical housing. A disk plate is attached to the side plate to provide an arcuate-shaped p... | 07/04/2000 |
| 6077061 | Vane motor with brake A vane motor comprises a casing and a vane rotor being mounted in the casing. A friction brake device is arranged in the casing and it is intended for braking, stopping and releasing the vane rotor. At least one of the two end faces of the vane rotor is p... | 06/20/2000 |
| 6071099 | Scroll compressor having a discharge muffler A high-performance scroll compressor permits the prevention of the deformation of an end plate of a fixed scroll in a hermetically sealed vessel of a typical wall thickness and strength, thus obviating the need for increasing the wall thickness of the ves... | 06/06/2000 |
| 6062835 | Gerotor motor and parking lock assembly therefor A fluid pressure motor of the type including a gerotor gear set (15) including a star member (31) which orbits and rotates. The motor includes valving (41) which is disposed forwardly of the gerotor gear set, and an end cap assembly (21;111) disposed rear... | 05/16/2000 |
