Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8177523 | Linear compressor A linear compressor includes a cylinder part with a cylinder bore. A piston is disposed in the bore and slidable therein. A main spring connects the cylinder part to the piston. A connecting member connects between the main spring and the piston. The connecting memb... | 05/15/2012 |
| 8141581 | Compressor improvements A linear compressor has a hollow piston with crown and sidewall. The piston reciprocates in a cylinder. A piston rod connects the piston to a spring. A connection between the piston rod and the piston transmits axial forces directly to the piston crown. The connecti... | 03/27/2012 |
| 7988790 | Washing appliance water softener A water softener particularly for use in a dishwasher. The water softener is located in the dishwasher water supply (238) between the primary supply valve and the wash chamber. The softener includes a resin container (207) with an ion exchange resin ( | 08/02/2011 |
| 7895999 | Cooking appliance In one aspect the invention discloses a gas cooktop which is relatively easy to clean and which is not visually complex. The gas cooktop surface is provided with a trivet having two operating conditions. In a first condition the trivet is retracted and is substantia... | 03/01/2011 |
| 7832419 | Extra width dishwasher A dishwasher includes a cabinet and a wash system slidably mounted within the cabinet in such a manner that it may be withdrawn horizontally out of the cabinet for loading with dishes. The wash system includes an open top wash chamber having a floor and side walls a... | 11/16/2010 |
| 7762007 | Laundry appliance A laundry appliance includes a cabinet or surround structure with an attachment for a removable front panel and a removable front panel for attachment to the cabinet. The appliance is a drum and a drum support structure supporting the drum for rotation. There is a m... | 07/27/2010 |
| 7663275 | Linear compressor controller A sensorless method and apparatus for detecting piston collisions in a free piston linear compressor motor. The waveform of the back EMF induced in the motor stator windings is analysed for slope discontinuities and other aberrations in a time window centred on the ... | 02/16/2010 |
| 7618243 | Linear compressor controller A free-piston linear compressor (1) controlled to achieve high volumetric efficiency by a controller including an algorithm (116) for ramping up input power until piston-cylinder head collisions are detected using a detection algorithm (117/118)... | 11/17/2009 |
| 7467483 | Laundry appliance A laundry appliance includes a cabinet or surround structure with an attachment for a removable front panel and a removable front panel for attachment to the cabinet. The appliance is a drum and a drum support structure supporting the drum for rotation. There is a m... | 12/23/2008 |
| 7422022 | Dishdrawer-camming arrangement A dishwasher is disclosed which is suitable for mounting within a cavity under a bench. The dishwasher is chassis less and includes no outer wrapper or cabinet and as such is mounted directly to the cavity. Also disclosed are a number of embodiments relating to mech... | 09/09/2008 |
| 7412783 | Laundry appliance A laundry machine includes a cabinet and a laundry holding drum rotatably supported therewithin. The drum includes a wall and a drum hatch comprising a section of the wall. A motor is connected to rotate the drum. A controller is configured to operate the motor to d... | 08/19/2008 |
| D568563 | Appliance console | 05/06/2008 |
| 7285878 | Linear motor controller A sensorless method of detecting piston collisions in a reciprocating free piston linear compressor driven by an electronically commutated linear motor having at least one excitation winding is provided. A free piston gas compressor is also provided. ... | 10/23/2007 |
| 7257905 | Laundry appliance A laundry drying machine includes a cabinet and a laundry holding drum rotatably supported within the cabinet for rotation. The drum includes a wall that is circumferential relative to the rotation and a drum hatch that is a section of the wall. The drum forms an en... | 08/21/2007 |
| 7249742 | Self-levelling foot arrangement for an appliance A self adjusting foot arrangement for an appliance cabinet has a first socket connected with the cabinet and a second socket connected with the cabinet spaced apart from the first socket. A foot downwardly protrudes from each socket and is moveable along axis into a... | 07/31/2007 |
| 7247007 | Linear compressor A linear compressor includes a cylinder part and a piston part. A spring connects the cylinder part and the piston part and operates in the direction of reciprocation of the piston part relative to the cylinder part. The piston part includes a radially compliant but... | 07/24/2007 |
| 7225562 | Laundry appliance A clothes drying appliance includes a cabinet and a drum inside the cabinet supported on a drum support structure. A belt passes around the drive pulley of a drive motor and around the drum for driving rotation of the drum in either direction. A belt tensioning devi... | 06/05/2007 |
| D543069 | Cooktop | 05/22/2007 |
| D542587 | Cooktop | 05/15/2007 |
| D540611 | Cooktop | 04/17/2007 |
| D540612 | Cooktop | 04/17/2007 |
| D540103 | Cooktop | 04/10/2007 |
| 7185431 | Method of manufacturing a linear compressor A method of manufacturing a linear compressor includes measures to account for possible variations in manufacture of the spring connecting between a cylinder part and a piston part. In the method, the piston is located at a predetermined axial position in the bore o... | 03/06/2007 |
| D537451 | Refrigeration compressor | 02/27/2007 |
| 7152612 | Dishwasher A dishwasher (200) is dislosed which is suitable for mounting within a cavity under a bench. The dishwasher is chassis less and includes no outer wrapper or cabinet and as such is mounted directly to the cavity. Also disclosed are a number of embodiments rela... | 12/26/2006 |
| 7146670 | Method of operating a laundry appliance drain pump A method of operating a drain pump in a laundry washing machine during the drain phase of the wash cycle to reduce pump blockages is disclosed. The method includes the steps of (a) starting the pump and running it for a first period of time to produce a discharge of... | 12/12/2006 |
| 7141949 | Low noise back EMF sensing brushless DC motor A low noise electronic three phase bridge controlled brushless DC motor suitable for whiteware appliance pumps and other appliance applications. Back EMF zero crossing sensing is used to determine rotor position and thus stator winding commutation times. Motor torqu... | 11/28/2006 |
| 7117613 | Laundry appliance A laundry machine includes a cabinet and a laundry holding drum rotatably supported therewithin. The drum includes a wall and a drum hatch comprising a section of the wall. A motor is connected to rotate the drum. A controller is configured to operate the motor to d... | 10/10/2006 |
| 7065905 | Laundry appliance A laundry drying machine includes a cabinet and a laundry holding drum rotatably supported within said cabinet for rotation about a horizontal axis. The drum includes a cylindrical wall and a pair of ends. A drum hatch comprises a section of the cylindrical wall. A ... | 06/27/2006 |
| 7028511 | Direct current power supply for a washing appliance A direct current power supply for a washing appliance powered is disclosed. The power supply includes a switch mode power supply which supplies direct current at a low voltage level from a high direct voltage supply and a pair of commutation devices as a buck conver... | 04/18/2006 |
| 6968632 | Laundry appliance A drum hatch engaging mechanism is for inclusion in a laundry appliance having a cabinet and a drum rotatable within the cabinet. The mechanism includes a drum hatch engaging member connected with the cabinet with the connection providing for movement of the member ... | 11/29/2005 |
| 6966761 | Linear compressor with aerostatic gas bearing passage between cylinder and cylinder liner A linear abstract includes a cylinder part and a piston part. A spring connects the cylinder part and the piston part and operates in the direction of reciprocation of the piston part relative to the cylinder part. The piston part includes a radially compliant but a... | 11/22/2005 |
| D510940 | Refrigeration compressor | 10/25/2005 |
| 6954040 | Method of controlling a reciprocating linear motor A free piston gas compressor comprising a cylinder, a piston reciprocable within the cylinder and a reciprocating linear electric motor derivably coupled to the piston having at least one excitation winding. A measure of the reciprocation time of the piston is obtai... | 10/11/2005 |
| 6913012 | Cooking appliance venting system A domestic cooking appliance that includes a cabinet, and at least one oven. Air space is provided between the cabinet and the oven. The cooking appliance includes venting to allow air to enter and exit the air space and an exhaust passage connecting the oven with t... | 07/05/2005 |
| D500327 | Refrigeration compressor | 12/28/2004 |
| 6812597 | Linear motor controller A free piston gas compressor comprising a cylinder, a piston reciprocable within the cylinder and a reciprocating linear electric motor derivably coupled to the piston having at least one excitation winding. A measure of the reciprocation time of the piston is obtai... | 11/02/2004 |
| D492073 | Laundry appliance | 06/22/2004 |
| D489500 | Tub surround for a laundry appliance | 05/04/2004 |
| D489496 | Laundry appliance | 05/04/2004 |
