Patents Represented by Attorney, Agent or Law Firm Robert J. Kraus
  • Patent number: 5842295
    Abstract: An ironing machine is provided which includes an iron 1 and a stand 2. The iron 1 includes a steam generator 11 in the sole plate 15 of the iron 1. The stand 2 includes a reservoir 21, which is connected to the steam generator 11 by a duct 3. The ironing machine further includes a pump 22 in the duct 3, which pump 22 can be driven by an electric current, and flow-rate adjustment device 41. The flow-rate adjustment device 41 has at least three settings corresponding to different flow-rates of water into the steam generator 11 and includes a control unit 41 and a driver 45 to control the electric current supplied to the pump 22 in dependence on the setting. The control unit 41 has a manually adjustable selector 42 for selecting a setting and a trigger 43 for activating the pump 22. During use the user can depress the trigger 43 when steam operation is required.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: December 1, 1998
    Assignee: U. S. Philips Corporation
    Inventors: Boon K. Ching, Tang P. Har, Albertus P. J. Michels
  • Patent number: 5833516
    Abstract: After a plate of electrically insulating, particularly hard and brittle material has been provided with a mask having a very large number of patterned apertures, it is exposed to at least one jet of abrasive powder particles, which jet is moved relative to the plate. In this way a plate is manufactured with a pattern of apertures and/or cavities which are eminently suitable for manipulating electron currents in electronic displays. Plates manufactured in this way may be used, for example, as control plates, spacer plates, or electron transport duct plates in electronic displays.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: November 10, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Franciscus C. M. De Haas, Franciscus M. H. Van Laarhoven, Johannes G. Van Beek
  • Patent number: 5831380
    Abstract: An electron has an electron-emitting region, a longitudinal axis and an arrangement of apertured electron grids along the axis. A first grid has an aperture for passing electrons, which aperture is located further outwards with respect to the longitudinal axis than the emitting region. One of the other grids is provided with a shield so as to shield the edge wall of the aperture, if it is located within direct view of the electron-emitting region, from incidence of positive ions.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: November 3, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Tom Van Zutphen, Frederik C. Gehring
  • Patent number: 5826993
    Abstract: In an apparatus (1) having a roller (14) for driving a record carrier (5), and having a motor (21) which is switchable between a first direction of rotation (22) and a second direction of rotation (23), by means of which in its first direction of rotation (22) the roller (14) is drivable to drive a record carrier (5), and having a printing device (32) which extends parallel to the roller (14), at least one shaft section (16, 17) connected to the roller (14) forms part of drive means (47, 48) for driving at least one actuating device (45, 46) for moving the printing device (32) away from the roller (14), the drive means (47, 48) further comprising a unidirectional coupling (49, 50) arranged adjacent the actuating device (45, 46) and drivable via the shaft section (16, 17), which coupling forms a drive transmission between the shaft section (16, 17) ) and the actuating device (45, 46) in the second direction of rotation (23) of the motor (21).
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: October 27, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Martin Landler, Johann Veigl
  • Patent number: 5822849
    Abstract: A circuit assembly is made by overmolding, with an electrically insulating material, a unitary framework of electrically conductive material forming coplanar conductors which are connected to each other by an integral structural member. The overmolded material secures the conductors relative to each other and enables portions of the structural member to be severed, electrically isolating the conductors from each other. The overmolded material also positions electrical components having leads that are electrically connected to the conductors. Ends of the conductors are formed into terminals which extend out of a hinge formed in the overmolded material. The hinge enables the terminals to be oriented in a different plane than the conductors.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: October 20, 1998
    Assignee: U.S. Philips Corporation
    Inventors: David Charles Casali, John E. Opie, Solomon Fridman
  • Patent number: 5819637
    Abstract: A Toaster having heating elements whose heating area depends on the slice size. A toaster has heating elements (H1, H2) divided into sub-elements (H1A, H1B; H2A, H2B) which can be activated individually. The size of the product to be toasted (5) is detected by means of a sensor, for example a mechanical sensor (2) or an optical sensor device with a photo-emitter and a photo-receiver. The sub-elements are activated selectively in dependence on the detected size. Thus, the power consumption of the toaster is adapted to the size of the product to be toasted and overheating of the product in the proximity of the unused heating area of the heating elements is avoided.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: October 13, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Jacob H. Botma, Roelf Van Der Wal, Klaas J. Lulofs
  • Patent number: 5818318
    Abstract: The invention relates to a magnetic clamping device with a clamping body (1) comprising a cylinder plate (2) of non-magnetizable material provided with cylinders (5), a clamping plate (3) of non-magnetizable material situated at one side of the cylinder plate, a closing plate (4) situated at the other side of the cylinder plate, and pistons (9) made at least partly from magnetic material which are movable in the respective cylinders, which clamping body is further provided with channels (13, 14) to which a fluidic pressure source can be connected for the simultaneous movement of the pistons in the cylinders towards and away from the clamping plate. To improve the magnetic clamping action, all magnetic pistons (9) are fastened to a common piston plate (8). This ensures that all magnetic pistons, when energized, will exert their magnetic influence on the object to be clamped.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: October 6, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Henricus J. Ligthart, Petrus H. W. Swinkels, Jakob Vijfvinkel
  • Patent number: 5818160
    Abstract: A deflection unit for deflecting the electron beams in a cathode ray tube has a hollow coil support of a synthetic material. At one end, the support has projections around which a clamping apparatus is arranged for securing the deflection unit to the neck of the cathode ray tube. The clamping apparatus has projections located opposite each other, while their mutual distance determining the diameter of the clamping apparatus is adjustable by tightening a bolt. The ends of the projections are constructed in such a way that they support each other when the bolt is tightened.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: October 6, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Elisabeth L. M. Ter Burg, Urbanus P. M. Goossens, Hendricus J. P. Lenders
  • Patent number: 5818157
    Abstract: A color cathode ray tube includes an in-line electron gun having a main lens with recessed apertures. The main lens is formed by two electrodes. These electrodes have outer edges and recessed apertures which allow passage of three in-line electron beams and which are arranged at a distance d1 and d2, respectively, from the outer edges. The outermost apertures are asymmetric. The difference d1-d2 and the asymmetry of the outermost apertures is such that both the beam displacement and the core haze asymmetry are minimal.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: October 6, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Lambert J. Stil, Johannes H. Bohlander, Tjerk G. Spanjer, Abraham A. Los, Antonius J. Pennings
  • Patent number: 5811921
    Abstract: A display device includes: a rear wall (4); a display panel (3) spaced from the rear wall (4) and a display screen (7) having a pattern of phosphor pixels; an addressing structure (100) disposed intermediate the rear wall (4) and the display panel (3) for addressing the display screen (7); and an aperture spacer plate (101); wherein, the spacer plate (101) includes a glass material having an electrical resistance of log R at 250.degree. C..gtoreq.8. The spacer plate (101) including a glass material having an electrical resistance of log R at 250.degree. C..gtoreq.8 reduces the charging of the spacer plate walls and improves uniformity of phosphor brightness. The spacer plate may further comprise a glass having a lower alkali mobility less than sodium lime glass.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: September 22, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Henricus J. Ligthart, Jan W. Kleine, Harm Tolner, Hermanus N. Tuin
  • Patent number: 5811919
    Abstract: A thin-panel picture display device having a luminescent screen is provided and by means of an addressing system, electrons are directed towards desired locations on the luminescent screen. A spacer plate of electrically insulating material, with apertures for passing electrons, is present between the addressing system and the screen. To provide the possibility of applying voltage differences of at least 5 kV across the thickness of the spacer plate, at least the walls of the apertures are coated with a coating of particles of nitrides, borides, carbides, oxides of chromium, yttrium, tantalum, with a secondary emission coefficient of .delta..sub.max .ltoreq.3.5 and an electrical sheet resistance of at least 10.sup.12 .OMEGA./.quadrature..
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: September 22, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Willem Hoogsteen, Ronaldus M. H. Steyvers, Monica Scholten, Maria C. Van Uden
  • Patent number: 5808713
    Abstract: Flat-panel picture display device comprising a picture display panel for modulating the state of polarization of polarized light coupled into said panel in conformity with a picture to be displayed. The light is polarized by means of a reflective polarizer which is integrated or not integrated with the picture display panel. At least a part of the picture display panel functions as an optical waveguide, notably for the beam component b.sub.2 having the state of polarization which is not suitable for modulation. An analyzer is present at a first surface of the picture display panel. The polarizing means in the form of a reflective polarizer are present at a second surface of the picture display panel, which surface is located opposite the first surface.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: September 15, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Dirk J. Broer, Reinder Smid, Alexander V. Henzen
  • Patent number: 5804913
    Abstract: A cathode ray tube (1) including an electron gun (6) for generating at least one electron beam and a deflection unit for deflecting the electron beam(s) across a display screen. The deflection unit (11) includes a first system (21) and a second system (22, 32) of saddle-shaped deflection coils. Which are interconnected via connecting pieces (41, 51, 63, 64) which are flexibly arranged with respect to each other.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: September 8, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Antonius P. M. Grubben, Edward P. V. Maesen, Johannes H. F. C. Sieben
  • Patent number: 5804009
    Abstract: After a plate or layer of non-metallic, particularly hard and brittle material has been provided with a (metal) mask having a plurality of apertures arranged in a pattern, it is exposed to at least one jet of abrasive powder particles, which jet is moved relative to the plate. The mask has its surface facing the surface on which the jet impinges secured to the plate or layer of non-metallic material by means of a layer of adhesive material having a thickness which is smaller than the size of the abrasive powder particles.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: September 8, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Jacobus M. Dings, Remko Horne, Gerardus N. A. Van Veen, Joseph C. M. Bosman
  • Patent number: 5800231
    Abstract: A method of providing a plurality of cavities and/or apertures in a plate or layer wherein, after the plate or layer has been provided with a mask having a plurality of apertures arranged in a pattern, at least one jet of abrasive powder particles is moved relative to the plate. On its exposed surface, the mask is provided with a coating which prevents substantial mechanical stresses from being generated in the mask during the process by the jet of powder particles.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: September 1, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Franciscus C.M. De Haas, Franciscus M.H. Van Laarhoven, Johannus M.E. Van Laarhoven, Henricus J. Ligthart, Petrus H.W. Swinkels, Johannes G. Van Beek
  • Patent number: 5801485
    Abstract: In, for example a field emission display, the invention provides the possibility of combining a plurality of sub-substrates that are attached to a larger rear wall, because notably different modes of multiplexing provide a wider positioning tolerance of a sub-substrate with respect to the front plate. Moreover, the different multiplexing techniques lead to a smaller number of connections, even if no use is made of a rear wall supporting sub-substrates. A plurality of multiplexing techniques provides the possibility of activating a substantially equally large number of pixels of different colors during parts of an image period, so that there is substantially no color flicker.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: September 1, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Gerardus N. A. Van Veen, Remko Horne, Dirk W. Harberts, Siebe T. De Zwart
  • Patent number: 5798605
    Abstract: The thin-type display device (1) with a vacuum envelope has a transparent front wall (3), which is provided with a display screen, and at least an electron source (5) and a duct structure, which cooperates with the electron source (5) and which extends substantially parallel to the front wall (3). Ducts (6, 6', 6") of the duct structure serve as electron-propagation means and are provided with walls (11, 11', 11") of an electrically insulating material having a secondary emission coefficient which is suitable for electron propagation. In the display device (1) 1.ltoreq.s/w.ltoreq.5 and s.multidot.w.gtoreq.5 mm.sup.2, where s is the depth of the ducts (6, 6', 6") and w is the width of the ducts (6, 6', 6"). Preferably, the width w.gtoreq.1.5 mm and the depth 3.5.ltoreq.s.ltoreq.15 mm. The voltage difference over the length of the ducts (6, 6', 6"), measured parallel to the front wall (3), is less than 75 V/cm, preferably less than 40 V/cm.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: August 25, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Nicolaas Lambert, Theunis S. Baller, Gerardus G. P. Van Gorkom, Edwin A. Montie, Petrus H. F. Trompenaars, Siebe T. De Zwart
  • Patent number: 5798138
    Abstract: A method of selectively metallising an inner, electrically insulating surface S.sub.i of an open body (3), comprising the following steps:(a) providing a roller (2) having a resilient outer surface S.sub.o ;(b) providing a layer of a suitable wet ink on the surface S.sub.o, according to a given pattern;(c) causing the roller (2) to roll along the surface S.sub.i so as to impart a patterned layer of wet ink from the surface S.sub.o to the surface S.sub.i ;(d) allowing the patterned layer of wet ink imparted to the surface S.sub.i to dry;(e) selectively depositing metallic material upon the patterned layer of dry ink thus obtained.Such a method is particularly suited to the manufacture of a scan velocity modulator (1) for use in a cathode ray tube.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: August 25, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Petrus E. J. Legierse, Jan W. Severin, Menno B. Kubbinga, Franciscus A. Meeuwsen, Antonius F. P. M. Van Veggel
  • Patent number: 5796814
    Abstract: A digital transmission system comprising a receiver with cascaded equalizers. The transmission system may also include multicarrier modulation means and multicarrier demodulation means comprising a semi-fixed equalizer cascaded with an adaptive equalizer. The semi-fixed equalizer equalizes the relatively stable or slowly and/or slightly changing imperfections which are due to the channel and the adaptive equalizer equalizes the imperfections which are due to transmission noise. The invention likewise relates to a process for determining the characteristics of the semi-fixed equalizer.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: August 18, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Americo Brajal, Antoine Chouly
  • Patent number: 5794520
    Abstract: An electric kettle has a body (10) a flat heating element (16), a thermal sensor (32) located with its bimetallic part 34 located in a steam chamber (20) and its electrical parts (36, 38) located in a dry chamber sealed from the steam chamber by a canopy (30), and first and second chimneys (40, 42) below the steam chamber (20) and the dry chamber respectively and having their lower ends connected to a base enclosure (44) below the heating element, the enclosure (44) having apertures (48) on the opposite side of the kettle to the chimneys.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: August 18, 1998
    Assignee: U.S. Philips Corporation
    Inventor: David V. Hefford