Cleaning Patents (Class 362/91)
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Patent number: 10928057Abstract: A domestic cooling device has a cold chamber delimited by walls, and at least one lighting module fitted into a wall opening of a delimiting wall of the cold chamber. The lighting module includes a light outlet pane, a light source arrangement having at least one light-emitting diode, a reflector body which reflects light in the direction towards the light outlet pane, which light reflection surface is irradiated by each light-emitting diode of the light source arrangement, and a frame part which is produced separately from the reflector body and protrudes from the delimiting wall on the side thereof facing towards the cold chamber, which frame part forms a visible surface which extends all around the light outlet pane and is exposed towards the cold chamber. The frame part is a surface-coated plastics component which is held in place by engaging the underside of the light outlet pane.Type: GrantFiled: January 22, 2019Date of Patent: February 23, 2021Assignee: emz-Hanauer GmbH & Co. KGaAInventors: Martin Brabec, Manfredi Signorino, Georg Wilhelm
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Patent number: 9429311Abstract: To illuminate a structure 5 with informational content on components 3, 20 of a filling opening in a laundry appliance, particularly a washing machine or a washer/dryer, components 3, 20, which are made of a transparent or translucent material, have a pot-shaped laundry deflector 20 and a window cover 3 lying at least approximately flush with the front face 1 of the laundry appliance. Components 3, 20 bear lettering 4, 16 and/or a symbol to be illuminated. Light-emitting elements 6, 17 are arranged opposite lateral edge faces 10, 15 of at least one of the components 3, 20, the light beams 9, 19 emitted by said elements being directed onto the edge faces 10, 15. The lettering 4, 16 or the symbol consists of a three-dimensional structure 5 in the material with an at least microscopically small extension into the material.Type: GrantFiled: July 2, 2013Date of Patent: August 30, 2016Assignee: BSH HAUSGERÄTE GMBHInventors: Florian Metz, Carsten Weber
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Patent number: 9258870Abstract: Method for operating a laundry treatment machine comprising an outer casing (2) provided with a door (8), a drum (3) mounted inside the outer casing, a drum lighting device (9) arranged inside the outer casing and operable to light the drum, and a control unit (11) adapted to control the lighting device; the method comprises: —switching-on drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device; —switching-off drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device.Type: GrantFiled: November 23, 2011Date of Patent: February 9, 2016Assignee: Electrolux Home Products Corporation N.V.Inventor: Roberto Ragogna
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Patent number: 8926117Abstract: A portable attachable illumination device configured to slidably attach to and partially encompass a brush.Type: GrantFiled: May 8, 2012Date of Patent: January 6, 2015Assignee: Brush Lite Innovations, LLCInventor: David Raymond Blanchette
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Publication number: 20130320858Abstract: Embodiments of the invention provide a light module for a pool cleaner. The light module can include a housing, a paddle wheel, a generator, and at least one light emitting diode (LED). The housing can be removably coupled to the pool cleaner and can include a flow directing portion positioned in a fluid path of the pool cleaner. The paddle wheel can be located adjacent to the flow directing portion and can rotate in response to fluid flow through the fluid path. The generator can be coupled to the paddle wheel and can generate power through rotation of the paddle wheel. The LED can be coupled to the generator and can receive the generated power from the generator to illuminate an area adjacent to the pool cleaner.Type: ApplicationFiled: June 4, 2012Publication date: December 5, 2013Inventors: Brian Deery, John Lipski, Leonard Richiuso, Suresh Gopalan
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Publication number: 20130314897Abstract: A laundry machine, in particular dryer, wash dryer or washing machine, includes: a body having a laundry loading opening; a drum, rotatably supported in the body; and a drum illumination device (10) for illuminating the interior of the drum. The drum illumination device (10) comprises a printed circuit board (PCB; 16) and at least one semiconductor or plasma light emitting element (19) arranged on the PCB (16), in particular at least one light emitting diode (LED).Type: ApplicationFiled: November 24, 2011Publication date: November 28, 2013Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Diego Dal Ben, Nicola Ius, Luciano Saraceni, Maurizio Saraceni
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Patent number: 8382304Abstract: A dishwasher includes a housing having a washing chamber with an access opening. An access door is operable to close the access opening in a fluid tight manner. A movable loading unit is disposable in the washing chamber and is at least partially removable from the washing chamber through the access opening. The loading unit includes an illumination device.Type: GrantFiled: March 3, 2011Date of Patent: February 26, 2013Assignee: Miele & Cie. KGInventors: Dirk Wegener, Seyfettin Kara
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Patent number: 8297768Abstract: A dishwasher includes a cleaning compartment having a front portion that can be closed by a door. The door is configured to pivot at a bottom section thereof around a horizontally running axis. An illuminating device is configured to illuminate at least one of the cleaning compartment and the front portion of the cleaning compartment. A control device switches the illuminating device on or off based on a opening position of the door. The control device includes a switching element that is actuated by a Bowden cable arranged on the door in order to compensate for the weight of the door.Type: GrantFiled: March 12, 2010Date of Patent: October 30, 2012Assignee: Miele & Cie . KGInventors: Seyfettin Kara, Markus Thuelig
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Patent number: 8016444Abstract: A washing machine and a method for controlling the same are provided. The washing machine includes a cabinet having a door on a front thereof, a tub in the cabinet that holds washing water, a drum rotatably mounted in the tub, a gasket mounted to connect openings of the door and the tub, and a lamp device having light emitting devices (LEDs) mounted on the gasket providing light an inside the washing machine. The method for controlling the washing machine includes turning on the LEDs providing light to the inside of the washing machine upon receiving an order of turning on a lighting through an LED input device, and turning off the LEDs upon receiving an order of turning off the lighting through the LED input device after the turning on the LEDs.Type: GrantFiled: July 28, 2006Date of Patent: September 13, 2011Assignee: LG Electronics Inc.Inventors: Han Ki Cho, Deok Joon Jeong, Chang Woo Son
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Publication number: 20110215689Abstract: A dishwasher includes a housing having a washing chamber with an access opening. An access door is operable to close the access opening in a fluid tight manner. A movable loading unit is disposable in the washing chamber and is at least partially removable from the washing chamber through the access opening. The loading unit includes an illumination device.Type: ApplicationFiled: March 3, 2011Publication date: September 8, 2011Applicant: MIELE & CIE. KGInventors: Dirk Wegener, Seyfettin Kara
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Patent number: 7914175Abstract: The enclosure assembly includes an enclosure body which is adapted to accommodate a laser scanner therein for use in a sawmill environment. The enclosure body includes a lid portion which is hinged to permit access to the interior of the enclosure for convenient removal and cleaning of the laser scanner. A front end assembly extends from a forward end of the enclosure body and includes an air knife member mounted therein which in operation produces an air curtain which extends from the air knife towards the workpiece, tending to maintain the debris away from the laser.Type: GrantFiled: April 25, 2007Date of Patent: March 29, 2011Assignee: EB AssociatesInventors: Earl M. Barker, Kevin J. Barker
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Patent number: 7878669Abstract: A knob deco for a laundry machine is provided. The knob deco may include a knob guard in which a dial knob is inserted, and a lamp window main body mounted at a rear surface of the knob guard. Lamp windows may be formed in the knob guard for transmitting light emitted from a rear side of the knob guard to a front side of the knob guard, and lamp window shielding members may be provided at the lamp windows to partially shield light transmitted through the lamp window.Type: GrantFiled: September 2, 2008Date of Patent: February 1, 2011Assignee: LG Electrnics Inc.Inventors: Ho-Sung Jang, Chang-Woo Son, Gil-Yong Lee, Yong-Min Jeon, Han-Ki Cho
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Patent number: 7845809Abstract: A domestic appliance includes an operation indicator having an illumination element for emitting a light beam by means of which a gap between the domestic appliance and a surface adjacent to the domestic appliance can be illuminated, and a reflection element in the gap for directing or bundling light emitted by the illumination element.Type: GrantFiled: October 2, 2006Date of Patent: December 7, 2010Assignee: BSH Bosch und Siemens Hausgeraete GmbHInventors: Johannes Büsing, Daniel Delle, Gerhard Fetzer, Peter Geissler, Norbert Gerstner, Hubert Groll, Mathias Herrmann, Dieter Hotz, Stefan Kasbauer, Michael Rosenbauer, Bernd Schessl
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Patent number: 7766525Abstract: A household appliance includes a front door having an upper edge, a front cover disposed in front of the front door; and an optical status display device mounted on the household appliance. The one optical status display device is hidden in a built-in state of the household appliance or is hidden when the front door is closed. The optical status display device is located at a spacing from the upper edge of the front door. The household appliance also includes a light guide for transmitting a signal light emitted by the optical status display device.Type: GrantFiled: December 4, 2003Date of Patent: August 3, 2010Assignee: BSH Bosch und Siemens Hausgeraete GmbHInventors: Michael Rosenbauer, Bernd Schessl
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Patent number: 7736009Abstract: This invention describes a hinged dust pan comprising a light source that is designed to illuminate a floor or other flat work surface in front of the dustpan for the purpose of locating and collecting small hard to see objects. This can be for the purpose of cleaning or simply locating a small valuable object. The light source is fashioned such that it provides a very low grazing angle of illumination that it skims across a surface. Small objects or particles are visible as being brighter than the surroundings and set off by a long shadow on the side of the particle away from the light.Type: GrantFiled: August 27, 2008Date of Patent: June 15, 2010Inventor: Richard J. Quattrini
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Patent number: 7736008Abstract: This invention describes a dust pan comprising a light source that is designed to illuminate a floor or other flat work surface in front of the dustpan for the purpose of locating and collecting small hard to see objects. This can be for the purpose of cleaning or simply locating a small valuable object. The light source is fashioned such that it provides a very low grazing angle of illumination that it skims across a surface. Small objects or particles are visible as being brighter than the surroundings and set off by a long shadow on the side of the particle away from the light.Type: GrantFiled: August 30, 2007Date of Patent: June 15, 2010Inventor: Richard J Quattrini, Jr.
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Patent number: 7673997Abstract: The present invention relates to a control panel assembly in which a light emitted from a single lamp is prevented from being dispersed nearby. A control panel assembly for a laundry machine, the control panel assembly includes a lamp supporter in which a plurality of lamps are installed to display functions selected by a user; a deco formed corresponding to the plurality of the lamps, the deco including a plurality of light-emitting holes through which a light emitted from each of the lamps passes; a light window including a light dispersion preventing part provided between the lamp supporter and the deco to prevent the light emitted from each of the lamps from being emitted through the other light-emitting holes except a single light-emitting hole corresponding each of the lamps.Type: GrantFiled: September 5, 2007Date of Patent: March 9, 2010Assignee: LG Electronics Inc.Inventors: Sung Gi Hwang, Ju Han Yoon, Seong Kyu Kim, Seon Il Heo
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Publication number: 20100033949Abstract: A water-bearing household appliance such as a dishwashing machine is provided with a housing having a housing edge which defines a washing compartment opening and with a washing compartment which is enclosed by the housing and which is defined by the housing. A seal is provided onto which a device door can be closed to abut the seal and the dishwashing machine has lighting elements arranged in the area between the housing edge and the seal for illuminating the washing compartment.Type: ApplicationFiled: April 1, 2008Publication date: February 11, 2010Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBHInventors: Reinhard Hering, Sebastian Wagner
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Patent number: 7651232Abstract: A dishwashing machine is provided having a door pivotable around the horizontal axis thereof and a switch arranged on the door. The switch is operable to generate an electric signal when a predetermined pivoting angle of the door is reached as the door is being opened. The dishwasher also includes a light source that illuminates the interior of the dishwashing machine, the light source being disposed in the interior of the dishwashing machine and being operably connected to the switch such that the light source is activated into an illuminated condition in response to the receipt of the electrical signal from the switch.Type: GrantFiled: November 20, 2003Date of Patent: January 26, 2010Assignee: BSH Bosch und Siemens Haugeraete GmbHInventors: Thomas Baumgartner, Jens Christmann, Wilhelm Sturm, Ingeborg Sturm, legal representative
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Publication number: 20090153057Abstract: The present invention relates to washing machines, and more particularly, to a washing machine having a lamp device with LED (76,78) mounted to a gasket (40) for lighting an inside of the washing machine, and a method for controlling the same. For this the present invention provides a washing machine including a cabinet (2) having a door (8) on a front, a tub (20) in the tub for holding washing water, a drum (30) rotatably mounted in the tub (20), a gasket (40) mounted to connect openings of the door (8) and the tub (20), and a lamp device (50) provided to the gasket (40).Type: ApplicationFiled: July 28, 2006Publication date: June 18, 2009Inventors: Han Ki Cho, Deok Joon Jeong, Chang Woo Son
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Publication number: 20090064528Abstract: A laundry treatment machine capable of determining whether a lint filter is installed therein is provided. Therefore, it is possible to prevent the infiltration of foreign substance into a heater or a drum, which may be caused when a lint filter is not installed in a laundry treatment machine, and thus to prevent a fire or damage to laundry. In addition, it is possible to easily implement a lint filter detection device for determining whether a lint filter is installed in a laundry treatment machine.Type: ApplicationFiled: September 3, 2008Publication date: March 12, 2009Applicant: LG Electronics Inc.Inventor: Kyung Tae Kim
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Publication number: 20090059561Abstract: Provided are a knob deco including a knob guard in which a dial knob is inserted, a lamp window main body mounted at a rear surface of the knob guard, and having lamp windows for transmitting light emitted from a rear side of the knob guard to a front side of the knob guard, and lamp window shielding members mounted at the corresponding lamp windows and configured to shield part of light transmitted through the lamp window, a manufacturing method, and a laundry machine having the same.Type: ApplicationFiled: September 2, 2008Publication date: March 5, 2009Inventors: Ho-Sung Jang, Chang-Woo Son, Gil-Yong Lee, Yong-Min Jeon, Han-Ki Cho
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Publication number: 20090044846Abstract: An aquiferous domestic appliance has a treatment compartment and articles to be washed disposed therein are illuminated by means of a light source in such a manner that the user is not blinded by the light source and is able to judge the cleaning result even under bad lighting conditions inside the room.Type: ApplicationFiled: October 13, 2005Publication date: February 19, 2009Applicant: BSH BOSCH UND SIEMENS HAUSGERAETE GMBHInventors: Michael Rosenbauer, Bernd Schessl
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Publication number: 20080127447Abstract: A floor care apparatus includes a housing carrying a suction generator, a dirt collection vessel and an electroluminescent light source.Type: ApplicationFiled: November 30, 2006Publication date: June 5, 2008Inventor: Chad D. Overaag
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Patent number: 6883927Abstract: A frame assembly for covering a wall conduit having a connection to electrical power and a component associated with the wall conduit requiring access through the frame assembly is provided. The frame assembly comprises a light powered by an electrical circuit connected to the connection and a frame for housing the light. The frame has an opening allowing access to the component through the frame, a side and an aperture in the side allowing the light to illuminate a space outside the frame assembly through the aperture.Type: GrantFiled: January 24, 2001Date of Patent: April 26, 2005Assignee: Cube Investments LimitedInventors: Vern Cunningham, Michael Gomes
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Patent number: 6672735Abstract: A suction head for a vacuum cleaning devices comprising an electrically operated brush roller and a lighting system for illuminating the working field. The lighting system contains a plurality of ultra-bright light-emitting diodes.Type: GrantFiled: May 22, 2001Date of Patent: January 6, 2004Assignee: Wessel-Werk GmbHInventors: Horst Dilger, Dieter Kaffenberger, Klaus-Dieter Riehl
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Patent number: 6508085Abstract: A door for a horizontal axis laundry appliance that includes an inner panel that closes the appliance and an outer panel spaced from the inner panel. The inner and outer panels are connected adjacent their upper edges by an upper panel. The inner panel includes a first window in the form of a wide-angle lens. The upper panel includes a second window. Light-transmissive devices including a negative mirror are disposed between the inner and outer panels so as to direct light received through the lens upwardly and outwardly through the second window. The interior of the appliance is illuminated by low-voltage halogen lights mounted on the inner panel.Type: GrantFiled: August 23, 2000Date of Patent: January 21, 2003Assignee: American Trim, LLCInventor: Robert M. Byrne
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Patent number: 6490755Abstract: A low-profile and highly-maneuverable vacuum cleaner having improved functionality including, alone or in combination, a headlight, a sidelight, anti-ingestion bars, side brushes, a squeegee, and a scent cartridge for use in cleaning floors, floor coverings, carpets, upholstery, and other surfaces. One embodiment includes a tortuous air flow path created by baffles that divert air flow. The tortuous path creates quieter air flow through the vacuum housing. The tortuous air flow arrangement is for cooling the internal parts of a vacuum cleaner. Another embodiment includes an indicator light assembly for the vacuum cleaner visually providing the user with the vacuum's current operation status. In another embodiment, the rear wheels are recessed within the head housing and slightly offset rearwardly of the rear wall of the head housing to provide enhanced maneuverability.Type: GrantFiled: November 21, 2001Date of Patent: December 10, 2002Assignee: Oreck Holdings, LLCInventors: Chris M. Paterson, Javier Verdura, Owen T. Bourgeois, Jeffrey A. Millard, Mel Teitzman, Paul A. Moshenrose
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Publication number: 20020101730Abstract: A suction head for a vacuum cleaning devices comprising an electrically operated brush roller and a lighting system for illuminating the working field. The lighting system contains a plurality of ultra-bright light-emitting diodes.Type: ApplicationFiled: May 22, 2001Publication date: August 1, 2002Applicant: Wessel-Werk GmbHInventors: Horst Dilger, Dieter Kaffenberger, Klaus-Dieter Riehl
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Patent number: 6206547Abstract: An automatic swimming pool cleaner is equipped with an electrically-powered light source that is securely mounted on, or above the exterior of the housing of the pool cleaner so that the light source illuminates a generally spherical space above and 360° around the pool cleaner. The light source is contained in a transparent hollow receptacle fabricated from an impact-resistant, rigid, light transmitting material. In a pool cleaner with a detachable handle, the handle's horizonal gripping member is constructed from a transparent annular tube in which the light source is axially mounted, the ends of the tube being provided with a waterproof seal where they are joined to the handle brackets. The light source can be one or more lamps or bulbs, preferably of a tubular configuration, such as an array of fluorescent tubes of the folded type that have a socket at one end, the free end being held by a resilient supporting member.Type: GrantFiled: October 27, 1998Date of Patent: March 27, 2001Assignee: Aqua Products Inc.Inventor: Giora Erlich
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Patent number: 5987697Abstract: A vacuum cleaner having a suction nozzle lamp which can light and observe a forward are of a suction nozzle for collecting dust or alien substances without being overheated. A reflection plate with a predetermined shape is formed inside a lower case forming a suction nozzle with a suction opening for sucking dust or alien substances, and a window is formed at the forward area of the reflection plate and at the lower case to light the forward area after light is reflected by the reflection plate. A suction nozzle lamp is formed between the reflection plate and the window. A strip-type electric bulb is located between the reflection plate and the window by first and second terminals or a socket terminal, thereby emitting enough light to the forward area of the suction nozzle to perform cleaning without being overheated.Type: GrantFiled: September 9, 1997Date of Patent: November 23, 1999Assignee: Kwangju Electronics Co., Ltd.Inventors: Jung-Gon Song, Ki-Man Kim
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Patent number: 5896618Abstract: A vacuum cleaner, which has a cleaning attachment through which dirt and dust are drawn, includes a lighting device that illuminates a surface to be cleaned. The lighting device includes a bulb in a groove that is formed at the cleaning attachment's front, thus horizontally illuminating the surface. Preferably, the bulb is a halogen lamp which is of predetermined length. The groove includes a plurality of air holes so that outside air can flow into the groove. A filter is provided in the air holes to prevent dust and dirt from getting into the groove. The lighting device may be detachably mounted on the cleaning attachment, and includes a case and a bulb installed in the case for illumination. The case includes a plurality of locking pieces that securely fit into a slit formed on the cleaning attachment so that the lighting device is connected to the cleaning attachment.Type: GrantFiled: April 14, 1997Date of Patent: April 27, 1999Assignee: Kwangju Electronics Co., Ltd.Inventors: Han-Jin Woo, Jeong-Gon Song, Sung-Lo Cho
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Patent number: 5836669Abstract: A space at least partly enclosed by an appliance housing can be illuminated by utilizing at least one lamp outside that space and coupling a light pipe system to that lamp so that light can be conducted into the space by a light-transmission system. Within the space light is emitted from one or more light extractors optically coupled to the light-transmission system. The light extractors are in the form of wave guides provided along a surface with formations or the like from which light is emitted.Type: GrantFiled: January 17, 1996Date of Patent: November 17, 1998Assignee: Troy Investments, Inc.Inventor: Aharon Zeev Hed
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Patent number: 5795052Abstract: Disclosed is a lamp driving control apparatus for a washing machine and a control method therefor which control operation of a lamp in accordance with a door opening/closing operation in the washing machine. A lamp driving control apparatus resides within washing machine which washing machine includes a main body, a door mounted to the main body, a door motor for providing power to open and closed the door, and a lamp that is turned on when the door is opened in order to illuminate an interior of the main body. The control apparatus includes: a door open sensor for sensing whether the door is opened by a predetermined angle corresponding to a fully opened door; and a controller for turning on the lamp when the door is opened beyond the predetermined angle corresponding to the fully opened door.Type: GrantFiled: November 8, 1996Date of Patent: August 18, 1998Assignee: Samsung Electronics Co., Ltd.Inventor: Ssi Chol Choi
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Patent number: 5740580Abstract: The present invention discloses a stepper vacuum chuck wiper for cleaning a stepper vacuum chuck, which includes a rod frame, a bearing device, a flare type soft shield, a wiping stick and an illuminating device. The rod frame has a through hole at one end and the bearing device is sleeved inside of the through hole. The flare type soft shield with a flare opening on its lower end is sleeved inside the bearing device, and the diameter of the flare opening is larger than the outside diameter of the bearing device. The wiping stick is sleeved inside the flare type soft shield. The illuminating device for illuminating the stepper vacuum chuck includes a light source, a battery set and a switch. The battery set is coupled to the other end of the rod frame to provide electricity to the light source, and the switch is coupled between the battery set and the light source to control the illumination of the light source, wherein the light source and the switch are disposed on the rod frame.Type: GrantFiled: November 29, 1996Date of Patent: April 21, 1998Assignee: United Microelectronics CorporationInventors: Chung-Chien Leu, Hsi-Huang Lee, En-Tien Tan
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Patent number: 5467501Abstract: An illuminated belt view for a vacuum cleaner wherein light is transmitted, via a light pipe, from a remote light source to an area directly underneath a transparent belt view window. The transparent belt view window is formed in the vacuum cleaner hood to allow the operator to observe the operating condition of the belt therein, the belt being operable to transfer rotational motion from a motor output shaft to a rotary brush. Illumination of the belt in the area of the belt view window allows the belt and the operating condition thereof to be observed during low ambient light conditions. Use of light from the light source, which is primarily a headlight, removes the need for an independent light source for the belt view window without significantly decreasing the amount of light which is transmitted to the area in front of the machine.Type: GrantFiled: June 10, 1994Date of Patent: November 21, 1995Assignee: White Consolidated Industries, Inc.Inventor: Arnold L. Sepke
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Patent number: 5207498Abstract: A vacuum cleaner headlight system incorporating a light pipe is provided. The light pipe includes reflex optics to control the distribution of light across the width of the output edge of the light pipe, as well as to prevent light from escaping through the sides of the light pipe. A reflex optical reflector is also part of the system, for reflecting light from a light bulb into the light pipe without requiring a metallized mirror.Type: GrantFiled: August 27, 1991Date of Patent: May 4, 1993Assignee: Electrolux CorporationInventors: Randall K. Lawrence, Timothy W. Jackson, Ronald L. Sitzema, Jr.
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Patent number: 4896243Abstract: An efficient ESD protection circuit is provided having a resistor (18) disposed between an input pin (12) and the functioning circuitry (22) of an integrated circuit package. A primary switching device (28) is electrically connected between the input pin (12) and a reference voltage pin (14). The resistor (18) comprises an N- well (48) formed within the P- substrate (44) and an N+ diffused reion (50) formed within the N- well (48). A silicided layer (52) is formed over the N+ region (50). The primary switching device (28) is constructed to share the same PN junction (54) utilized by the resistor (18). In constructing the primary switching device (28), a P+ region (70) is formed within the N- well (48). Further, an N+ region (68) is formed within the P- substrate (44). Thus, the primary switching device (40) includes three PN junctions (72, 54, 74) which will conduct at a time prior to, or contemporaneous with, the breakdown of resistor (18).Type: GrantFiled: December 20, 1988Date of Patent: January 23, 1990Assignee: Texas Instruments IncorporatedInventors: Amitava Chatterjee, Charvaka Duvvury
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Patent number: 4845796Abstract: This tooth brush is designed to effectively clean a person's teeth by rotation. Primarily, it consists of an electric motor in a housing that is hand held, and a flexible brush stem is received in the shaft of the motor and includes bristles that are radially disposed on the other end of the flexible brush stem.Type: GrantFiled: July 24, 1987Date of Patent: July 11, 1989Inventor: Randy Mosley
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Patent number: 4791700Abstract: An illumination system for a vacuum cleaner including a thermoplastic injection molded lens which, cooperating with a reflector surface, provides a high level of optical efficiency. The lens includes separate prism and diffusion areas which focus light immediately ahead of the cleaner. The lens and reflector allow a low wattage bulb to be utilized and thereby avoid excessive generation of heat and the requirement for a bulb socket for heat dissipation.Type: GrantFiled: December 29, 1987Date of Patent: December 20, 1988Assignee: The Scott Fetzer CompanyInventors: James E. Bigley, Lee R. Estelle
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Patent number: 4757574Abstract: A vacuum cleaner main chassis incorporates a light plate for providing light from a relatively narrow slot extending across the front of the chassis onto a floor surface to be cleaned. The light plate is generally planar and transmits light therethrough within its plane from an input edge of the plate to an opposite output edge thereof. The plate output edge resides in the chassis front slot while the rest of the plate is enclosed within the chassis so that light emerges from the chassis only through its front slot. The slot is relatively close to the floor surface for illuminating an area thereof beginning relatively adjacent the chassis. Lamps located adjacent the relatively rearward input edge of the light plate are thus positioned relatively remote from a suction nozzle and rotatable bar brush located in a forward area of the chassis, which avoids preempting critical space in such area or interfering with operation of such elements.Type: GrantFiled: January 25, 1988Date of Patent: July 19, 1988Assignee: The Singer CompanyInventor: William R. Sumerau