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 |
| 8177533 | Scroll expander and refrigeration cycle apparatus A lap (201) of an orbiting scroll (21) and a lap (202) of a stationary scroll (22) are meshed with each other to form an inner wall side expansion chamber (203a) on the side of a lap inner wall (201a) of the or... | 05/15/2012 |
| 8092199 | Scroll compressor including a plurality of shoulder sections Provided is a scroll compressor that is capable of three-dimensional compression, ensuring a required wrap strength while increasing a shoulder section height of a spiral wrap, and facilitating wrap processing. The scroll compressor includes shoulder sections at an ... | 01/10/2012 |
| 8075290 | Scroll compressor with valve for controlling fluid to flow from an outer wall to an inner wall of a fixed or a movable spiral wrap Compressor has a fixed scroll and a scroll movable in an orbit relative to the fixed scroll. The fixed and movable scrolls are equipped with a spiral wrap that engage each other and delimit variable-volume compression chambers. The spiral wrap of the movable scroll ... | 12/13/2011 |
| 8038421 | Scroll compressor having an allowable angle of rotation A scroll compressor includes a fixed scroll and an orbiting scroll, each including a spiral wrap protruding from an end plate and having the same tooth thickness (Tr) and the same base-circle radius (b) defining an involute surface. The fixed scroll and the orbiting... | 10/18/2011 |
| 8002529 | Scroll compressor with extended profile A scroll type compressor, according to the invention, comprises first and second scroll members each having an end plate and a scroll wall projecting from the end plate. The scroll members have their scroll walls interleaved with one another to define therebetween a... | 08/23/2011 |
| 7997883 | Scroll compressor with scroll deflection compensation A scroll compressor may incorporate controlled bending of a scroll member to compensate for axial deformations that can occur between the scroll members. The controlled bending may be through the use of fluid pressure in a sealed chamber that communicates with a sur... | 08/16/2011 |
| 7967583 | Compressor having capacity modulation system A compressor includes orbiting and non-orbiting scroll members meshingly engaged to form a series of compression pockets, including first pockets when the orbiting scroll member is in a first position. A first porting in the non-orbiting scroll member communicates w... | 06/28/2011 |
| 7967582 | Compressor having capacity modulation system A compressor includes a first porting extending through an end plate of an orbiting scroll member at an angular extent of at least twenty degrees and first and second spiral wraps defining modulated capacity pockets when the orbiting scroll is in a first position. T... | 06/28/2011 |
| 7950912 | Scroll compressor having a gradually changing tip clearance A scroll compressor performing three-dimensional compressions, which can optimize a tip clearance in operation while considering a thermal expansion and a pressure deformation and which can reduce a compression leakage to improve a compression efficiency thereby to ... | 05/31/2011 |
| 7938634 | Self-modulated scroll compressor with optimized built-in volume ratio A self-modulating scroll compressor includes a built-in volume ratio that is defined as the ratio of a volume of a compression pocket just after completion of suction, i.e. at a beginning of a compression cycle, to the volume of the compression pocket just prior to ... | 05/10/2011 |
| 7905715 | Scroll compressor having a fixed scroll part and an orbiting scroll part a First gap (15) in a thrust direction between teeth bottoms of a fixed mirror plate (2b) and teeth tips of an orbiting lap (4a), and a second gap (16) in the thrust direction between teeth bottoms of an orbiting mirror plat... | 03/15/2011 |
| 7785088 | Scroll fluid machine with a coating layer A scroll fluid machine that is capable of preventing a power loss and enhancing the degree of hermeticity of compression chambers. A plurality of outer peripheral projections are formed on an outer peripheral surface of a wrap portion of each scroll. An outer periph... | 08/31/2010 |
| 7722341 | Scroll compressor having variable height scroll A scroll compressor is provided. The scroll compressor includes a fixed scroll and an orbiting scroll, each with a wrap extending from a plate. The wrap or the plate may have different heights so as to prevent a gap from forming between the end of one of the wraps a... | 05/25/2010 |
| 7520737 | Positive-displacement fluid machine The present invention is a fluid machine constituted so as to close moving spaces communicating with an intake opening by at least one pair of members, move them toward a discharge opening and discharge fluid sucked into the intake opening from the discharge opening... | 04/21/2009 |
| 7491044 | Sealing device of fluid machinery A sealing device includes a stationary member, an orbiting member, a tip end surface of which slides on an inner face of the stationary member, and a sealing member to be fitted into a sealing groove engraved on the tip end surface. A sliding contact surface of the ... | 02/17/2009 |
| 7445437 | Scroll type fluid machine having a first scroll wrap unit with a scroll member and a scroll receiving member, and a second scroll wrap unit engaged with the first scroll wrap unit A scroll type fluid machine includes a housing, a first scroll unit arranged rotatably in the housing and a second scroll unit rotating with rotation of the first scroll unit and gyrating relative to the first scroll unit to vary volumes of compression spaces. The f... | 11/04/2008 |
| 7431576 | Ductile cast iron scroll compressor A scroll compressor includes a scroll member having a base and a generally spiral wrap that extends from the base to define a portion of a compression chamber. The scroll member is made of a cast iron material comprising a microstructure having graphite nodules.... | 10/07/2008 |
| 7419371 | Scroll fluid machine In a scroll fluid machine, a driving shaft extends axially to allow an orbiting scroll to revolve with respect to a fixed scroll thereby compressing a gas introduced from the outer circumference of the fixed scroll in a compressing chamber formed between the orbitin... | 09/02/2008 |
| 7404706 | Scroll fluid machine having oil-supply holes being formed through a reinforcement bearing plate on a rear surface of the orbiting scroll A scroll fluid machine comprises a fixed scroll, an orbiting scroll and a plurality of self-rotation preventing device for preventing the orbiting scroll from rotating on its own axis. On the rear surface of the orbiting scroll, a reinforcement bearing plate is fixe... | 07/29/2008 |
| 7377759 | Scroll fluid machine with a self-rotation-preventing device having ears for an orbiting scroll In a scroll fluid machine, an orbiting scroll is revolved with respect to a fixed scroll in a housing. A self-rotation-preventing device is provided to prevent the orbiting scroll from rotating on its own axis. The device comprises a pair of holders, one of which is... | 05/27/2008 |
| 7371059 | Scroll compressor with discharge valve A scroll compressor utilizes scroll wrap profiles which are designed with a rapid compression scroll wrap profile. This profile utilizes a shorter wrap and lower vane aspect ratios during the compression process. The non-orbiting scroll member is integrated with the... | 05/13/2008 |
| 7364418 | Scroll fluid machine having an adjustment member with a deformable element A scroll fluid machine includes a stationary scroll having a spiral wrap formed on an end plate and a moving scroll having a spiral wrap formed on an end plate. A polymer actuator for adjusting the amount of space between the wrap and the end plate is disposed in a ... | 04/29/2008 |
| 7357627 | Scroll fluid machine In a scroll fluid machine, a stationary scroll fixed to a housing engages with an orbiting scroll to form a sealed chamber between the orbiting and stationary scrolls. Fluid in the sealed chamber is compressed or decompressed with revolution of the orbiting scroll w... | 04/15/2008 |
| 7344365 | Scroll compressor with bypass holes communicating with an intake chamber A scroll compressor includes a first scroll and a second scroll. The first scroll has a step portion that separates an elevated portion and a recessed portion of a surface of the first scroll. A spiral wall of the second scroll has a step that separates an elevated ... | 03/18/2008 |
| 7341439 | Scroll fluid machine having an adiabatic expansion chamber A scroll fluid machine comprises a driving shaft having an eccentric axial portion at one end; a fixed scroll having a fixed wrap; and an orbiting scroll having an orbiting wrap and rotatably mounted to the eccentric axial portion of the driving shaft. A gas introdu... | 03/11/2008 |
| 7341438 | Scroll-type fluid machine including passage formed in movable scroll A fluid machine includes a stationary scroll member and a movable scroll member. A second tooth portion of the movable scroll member is arranged to be revolved with respect to a first tooth portion of the stationary scroll member and to form an operating chamber bet... | 03/11/2008 |
| 7338263 | Method and apparatus for compressor re-manufacture In a method of repairing a scroll compressor, the casing 100 of the compressor is cut open by making two transverse cuts through the casing to give access to the internal components of the compressor. The casing 100 is then resealed, using two annular ... | 03/04/2008 |
| 7338264 | Recesses for pressure equalization in a scroll compressor A scroll compressor is provided with spaced grooves in a base of one of the two scroll members. A recess is formed in a wrap tip of the other scroll member. The recess in the wrap tip bridges a space between the grooves of the other scroll member. This bridging equa... | 03/04/2008 |
| 7335004 | Apparatus for varying capacity in scroll compressor An apparatus for varying the capacity in a scroll compressor, the apparatus having an orbiting scroll provided with a wrap filling portion which is stepped at a certain height, extending the entire inside of a wrap from an outer end portion of the wrap; a fixed scro... | 02/26/2008 |
| 7318711 | Oil supply structure of scroll compressor Disclosed herein is an oil supply structure of a scroll compressor capable of preventing a sludge clog phenomenon in a fine hole of an oil supply screw. The oil supply structure comprises a backpressure space defined between an orbiting scroll and a main frame of th... | 01/15/2008 |
| 7318710 | Fixed scroll of scroll compressor Disclosed herein is a fixed scroll of a scroll compressor capable of preventing gaseous refrigerant, that is heated in the compressor or contains a large amount of oil scatted in a compression unit, from being introduced into a compression chamber. The fixed scroll ... | 01/15/2008 |
| 7318275 | Method of remanufacturing a compressor A compressor has a housing assembly and at least one rotor held by the housing assembly for rotation about a rotor axis. The rotor has a first face and a first housing element has a second face in facing spaced-apart relation to the first face of the rotor. One or m... | 01/15/2008 |
| 7316549 | Step-type capacity varying apparatus of scroll compressor Disclosed is a step-type capacity varying apparatus of a scroll compressor comprising: an orbiting scroll having a first filling portion step-formed with a constant height from an outer end portion of a wrap towards an inner side of the wrap, and a second filling po... | 01/08/2008 |
| 7314356 | Fluid machine An outer end of a seal element for a fixed scroll is extended to a position close to an end of an inside spiral wall of the fixed scroll, and an outwardly extended portion is formed at an outer periphery of a disc-shaped base plate of a movable scroll, so that a bot... | 01/01/2008 |
| 7314358 | Scroll fluid machine having an adjustment member for correcting an error in orbiting motion between fixed and orbiting scrolls A scroll fluid machine comprises a fixed scroll, an orbiting scroll and a self-rotation-preventing device for preventing the orbiting scroll from rotating on its own axis. The self-rotation-preventing device comprises a bearing in a support hole of the orbiting scro... | 01/01/2008 |
| 7309219 | Scroll type fluid machinery The present invention provides a scroll type fluid machine which enables both of a fixed scroll and an orbiting scroll to be cooled by means of a cooling fan, and which enables an overall size of the machine to be compact. Cooling fans 38A and 38B are ... | 12/18/2007 |
| 7300266 | Orbiting vane compressor incorporating orbiting vane with oil supply function Disclosed herein is an orbiting vane compressor incorporating an orbiting vane with oil supply function that is capable of performing more smooth orbiting movement. The orbiting vane has a compression unit comprising an orbiting vane having a boss formed in the cent... | 11/27/2007 |
| 7290990 | Short reverse rotation of compressor at startup In a method of operating a scroll or screw compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type that does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant fr... | 11/06/2007 |
| 7278832 | Scroll compressor with enlarged vapor injection port area Scroll compressors are provided with vapor injection or by-pass ports that will allow greater flow of refrigerant through the port than was the case in the prior art. The prior art has typically utilized a single injection port having a diameter equal to or slightly... | 10/09/2007 |
| 7278833 | Hybrid compressor A hybrid compressor includes a first compression mechanism, which is driven by a first drive source, a second compression mechanism, which is driven by a second drive source, and a communication path communicating between a suction chamber of the first compression m... | 10/09/2007 |
