Patents Represented by Attorney, Agent or Law Firm Paul R. Miller
-
Patent number: 5447074Abstract: A strain-gauge transducer (5) comprising a substrate (10) provided with strain gauges and pressure members (11, 12) which deform the substrate (10) via transfer elements (1a, 4a) which transmit an applied force (F). The transfer elements comprise bars (1a, 1b, 4a, 4b) molded from an elastomer in a common molding operation. A material (2a, 3a) having a higher compressibility than the bars may be interposed between the bars. This material may form elastic stops (54a) provided to preclude breakage of the substrate. This results in a transducer whose sensitivity is linear for small loads and which is very insusceptible to overloading. The transducer can be used for the construction of scales or touch tablets.Type: GrantFiled: December 19, 1994Date of Patent: September 5, 1995Assignee: U.S. Philips CorporationInventors: Remy Polaert, Francois Maniguet
-
Patent number: 5448316Abstract: An assembly of at least two stacked anti-implosion bands, in which each anti-implosion band 14, 24 comprises suspension elements 15, 25 projecting from the anti-implosion band 14, 24 which surround the adjacent anti-implosion band with clearance. As a result, anti-implosion bands can be stacked in a simple manner for storage and/or shipment, and can be readily unstacked for individual attachment to display tubes.Type: GrantFiled: September 28, 1990Date of Patent: September 5, 1995Assignee: U.S. Philips CorporationInventors: Hendrik Bongenaar, Franciscus A. J. Hessels
-
Patent number: 5442676Abstract: Measurements are made on a sample (1) to obtain an experimental profile (2) having structural features (3, 4) determined at least in part by the given characteristic and an expected profile (5) calculated for the sample using selected parameters. A degree of smoothing is applied to the experimental profile (2) to reduce the structural features (3,4) thereby producing a smoothed experimental profile (21 a) and the same degree of smoothing is applied to the calculated profile (5) to produce a smoothed calculated profile 51 a. The smoothed calculated profile (51 a) is compared with the smoothed experimental profile (21 a) to determine the difference between the smoothed profiles. The calculated profile is then modified by varying at least one of the parameters until the smoothed modified profile fits the smoothed experimental profile.Type: GrantFiled: December 16, 1993Date of Patent: August 15, 1995Assignee: U.S. Philips CorporationInventor: Paul F. Fewster
-
Patent number: 5438343Abstract: A gas discharge display and the method of making same utilizing integrated circuit fabrication techniques. The display is manufactured from heat and pressure resistant planar substrates in which cavities are etched, by integrated circuit manufacturing techniques, so as to provide individual pixels. Orthogonal electrodes are deposited on the substrates and extend into the cavities. The cavities are filled with gas discharge materials, such as plasma, upon energization of the electrodes the individual cavities forming the pixels may be individually activated.Type: GrantFiled: December 30, 1993Date of Patent: August 1, 1995Assignee: Philips Electronics North America CorporationInventors: Babar A. Khan, David A. Cammack, Ronald D. Pinker, Jerry M. Kramer
-
Patent number: 5434470Abstract: A color display tube is presented having an elongated display screen with a pattern of phosphor dots. In order to render mislanding errors of the electron beams as small as possible, particularly in the y direction, the color display tube has an internal shield which is provided proximate to its gun-sided open end with a structure for deflecting the field lines of the axial component of the earth's magnetic field more to the short sides than to the long sides of the shield. This structure is particularly constituted in that the short sides are provided with edges extending toward the gun, or in that a border strip has been removed from the long sides.Type: GrantFiled: October 19, 1994Date of Patent: July 18, 1995Assignee: U.S. Philips CorporationInventors: Hendrik J. De Wit, Willem Schouten
-
Patent number: 5427670Abstract: A device is set forth for the treatment of substrates at low temperature, which device is provided with a process chamber (1) in which a holder (2) is arranged which is provided with a support plate (3) having an upper side (4) on which a substrate (5) can be placed, and having a lower side (6) which forms a wall (7) of a cooling chamber (8). The cooling chamber (8) is provided with an inlet (9) comprising a feed opening (10) and an outlet (11, 12) comprising a drain opening (13) through which a cooling liquid can be passed into and from the cooling chamber (8). A first portion (23) of the wall (7) of the cooling chamber (8) formed by the lower side (6) of the support plate (3) projects further into the chamber (8) than does a second portion (20), while the first and the second portion (23, 20, respectively) merge fluently into one another. The drain opening (13) of the outlet (11, 12) of the cooling chamber (8) is positioned adjacent the second portion (20) of the wall (7).Type: GrantFiled: November 10, 1993Date of Patent: June 27, 1995Assignee: U.S. Philips CorporationInventors: Jacobus A. G. Baggerman, Ronnie A. A. Hack, Pieter J. Q. Van Voorst Vader
-
Patent number: 5425610Abstract: The invention relates to a metal plate (10) with a screw bore (16) starting at one narrow side of the plate and running parallel to the plate surfaces (10a,b), which screw bore (16) is formed in a simple manner in that first recesses, for example through holes (11), are provided and subsequently the metal portions (13) formed between the recesses (11) are alternately stamped in the direction of the one and the other plate surface (10a, 10b), such that the outer surfaces (14a, 15a) of the stamped parts lie flush with the relevant plate surfaces (10a, 10b).Type: GrantFiled: May 24, 1994Date of Patent: June 20, 1995Assignee: U.S. Philips CorporationInventors: Hans-Jurgen Weidner, Franz Scheuermann, Karlheinz Kind
-
Patent number: 5424567Abstract: A programmable transistor includes impurity regions to reduce punch-through and soft-write phenomena. In order to provide a fast operation, the impurity regions are arranged with regard to one another so that parasitic capacitances at junctions of impurity regions of mutually opposite conductivity type are minimized. For these purposes, the transistor comprises a charge storage region over a channel region in a main semiconductor zone of a first conductivity type located between a source and a drain of a second conductivity type opposite to the first. A first impurity zone of the first conductivity type, substantially laterally contiguous with the drain, extends into the channel region and is more heavily doped than the main zone. The drain includes a heavily doped third impurity region and a lightly doped second impurity region that lies at least mainly between the third region and the zones.Type: GrantFiled: May 15, 1991Date of Patent: June 13, 1995Assignee: North American Philips CorporationInventor: Teh-Yi J. Chen
-
Patent number: 5424603Abstract: Color selection means for color display tubes is provided comprising a curved mask and a rectangular frame supporting the mask, which frame comprises four parts. To realize a light and nevertheless rigid frame construction, at least two oppositely located frame parts are formed by folded pipes which each have a re-entrant wall with an edge following a curved path. The mask is clamped onto these edges so that the curvature of the edges determines the curvature of the mask.Type: GrantFiled: November 22, 1993Date of Patent: June 13, 1995Assignee: U.S. Philips CorporationInventor: Peter P. W. L Van Den Bekerom
-
Patent number: 5422535Abstract: The capped electric lamp of the invention has a ceramic cap (10) having a shell portion (12) and an integral base portion (11) through which metal pins (13) pass. A lamp vessel (1) having a seal (4), from which current conductors (3) to an electric element (2) within the lamp vessel extend beside one another to the exterior, is fixed in the cap (10). Outside the lamp vessel the current conductors (3) each have a portion sealed in a glass envelope (6) which is connected to the seal. The glass envelopes (6) define a slit (5) between them. A ceramic partition wall (20) having a foot (21) is fixed on the base portion (11) and extends into the slit (5), thereby creating for the current conductors and respective contact members connected thereto their own compartment (14) in the cap. The lamp cap (10) and the partition wall (20) are readily obtainable and easy to assemble and nevertheless allow for high voltages to be used to ignite or to hot restrike the lamp.Type: GrantFiled: October 12, 1993Date of Patent: June 6, 1995Assignee: U.S. Philips CorporationInventors: Godefridus N. M. Verspaget, Hendrikus A. M. Van Dulmen
-
Patent number: 5412241Abstract: This application is directed to an improved thin film SOI device in which a gate region extends over a thin layer of silicon having a lateral linear doping region on a buried oxide layer. The gate region of this invention includes a gate electrode and a field plate extending laterally from the gate electrode over the lateral linear doping region.Type: GrantFiled: August 3, 1993Date of Patent: May 2, 1995Assignee: Philips Electronics North America Corp.Inventor: Steven L. Merchant
-
Patent number: 5408158Abstract: A color cathode ray tube comprises a color selection electrode which is secured to a frame and a magnetic screening cap. The frame has two diaphragm portions one of which is located near the color selection electrode and the other is further removed from the color selection electrode. The distance between the electron beams deflected towards the outermost apertures of the color selection electrode and the further removed diaphragm is at least 1 cm. By virtue thereof, the negative influence of the frame on the screening effect of the magnetic screening cap is substantially reduced.Type: GrantFiled: October 27, 1993Date of Patent: April 18, 1995Assignee: U.S. Philips CorporationInventors: Theodoor C. A. Hens, Jean Winters, Adrianus J. Van Mensvoort
-
Patent number: 5404204Abstract: Display tube including a deflection unit which comprises a coil support (8), a field deflection coil (12), a line deflection coil (11) and a yoke ring (14). Plate-shaped metal field correction elements (15, 15', 15") are arranged between the field deflection coil (12) and the coil support (8), which elements are rigidly secured to the inner surface of the yoke ring by means of a form-filling adhesive which extends between the parts of the field deflection coil. Vibrations of the field correction elements and sound generated by transfer of these vibrations to the coil support are thereby substantially prevented.Type: GrantFiled: April 1, 1994Date of Patent: April 4, 1995Assignee: U.S. Philips CorporationInventor: Petrus H. W. Swinkels
-
Patent number: 5401996Abstract: An overvoltage protected switch (1) includes a power semiconductor device (10) formed by a plurality of second regions (11) within a first region (3) of a semiconductor body (2), and an insulated gate 12 overlying a conduction channel region (13) between each second region (11) and the first region (3) with the first and second regions (3 and 11) providing a conductive path to first and second main electrodes (4 and 5), respectively, of the switch (1). An auxiliary semiconductor device (100) is formed by a number of further second regions (11), less than the plurality of second regions (11), and a further insulated gate (120) overlying a further conduction channel region (13) between each further second region (11) and the first region (3).Type: GrantFiled: November 30, 1993Date of Patent: March 28, 1995Assignee: U.S. Philips CorporationInventor: Brendan P. Kelly
-
Patent number: 5401190Abstract: A rotating-telescoping base structure for lamps or light bulbs is described. The structure may be rotated up to 320.degree. and may be telescoped outwardly from the base structure. This enables use in applications where a longer neck dimension is needed or alignment of the fixture without unscrewing it from a socket is to be carried out.Type: GrantFiled: December 14, 1992Date of Patent: March 28, 1995Assignee: Philips Electronics North America CorporationInventors: Harish F. Gandhi, Robert E. Cassidy
-
Patent number: 5391444Abstract: At least partly overlapping patterns are formed on a substrate. The substrate is provided with a photosensitive layer which becomes tacky under the influence of light. The layer is exposed according to a pattern. A powder is provided on the exposed portions of the layer. The powder adheres to the exposed portions. Subsequently, the layer is again exposed according to a pattern which at least partly overlaps the first pattern. It has been found that a second powder adheres to the powder which has been provided first. In this manner, several powder layers can be provided on top or: each other on one photosensitive layer. This saves time.Type: GrantFiled: June 3, 1991Date of Patent: February 21, 1995Assignee: U.S. Philips CorporationInventor: Sebastianus N. G. Cuppen
-
Patent number: 5389025Abstract: A method of manufacturing a magnetically split internal magnetic shield (19) which comprises two complementary parts (15) and (16). Two plate-shaped parts (15') and (16') of a ferromagnetic material are arranged next to each other at a distance d and welded together by means of a strip of a non-magnetic metal. Subsequently, an internal magnetic shield is formed from the twin plate by means of drawing, cutting and/or bending.Type: GrantFiled: May 10, 1994Date of Patent: February 14, 1995Assignee: U.S. Philips CorporationInventors: Richard Vanceulen, Wilhelmus J. Beekmans, Henricus P. Van Der Vijfeyke
-
Patent number: 5382881Abstract: A ballast stabilization arrangement is provided for minimizing or eliminating lamp current oscillation, or moding, of gas discharge lamps, such as fluorescent lamps, and a method for carrying out this arrangement is described. This is carried out by adding a frequency response zero to the current circuitry in a ballast. An example of this circuitry includes a feedback network where a sensed lamp current signal is compared with a reference signal by an error amplifier having a resistance placed in series with its feedback capacitance to implement the zero in the frequency response of the control circuit.Type: GrantFiled: December 28, 1992Date of Patent: January 17, 1995Assignee: North American Philips CorporationInventors: Thomas Farkas, Sreeraman Venkitasubrahmanian
-
Patent number: 5381078Abstract: A wall-mounted electronic potentiometer system is provided for controlling fluorescent lamps by way of ceiling mounted controllers. This enables control of the control information by way of a 2-wire communication bus to selected ceiling mounted controller using a serial data format.Type: GrantFiled: March 15, 1993Date of Patent: January 10, 1995Assignee: North American Philips CorporationInventor: Stefan Szuba
-
Patent number: 5380230Abstract: An incandescent lamp having a filament with an integral support portion between its ends which bears against the lamp envelope for supporting the filament therein is produced. The integral support portion includes a length of electrically conductive support wire enclosed within the filament, the filament being continuously coiled over the entire length of said support wire. Accordingly to a favorable embodiment, the support wire is a retained length of winding mandrel.Type: GrantFiled: September 14, 1993Date of Patent: January 10, 1995Assignee: Philips Electronics North America CorporationInventors: Jerry W. Smith, Larry R. Fields