Patents by Inventor Kazimir Palac

Kazimir Palac has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5030154
    Abstract: A novel color selection electrode assembly is utilized in screening a pattern of phosphor areas upon the faceplate of a color cathode ray tube. The faceplate, which is formed of a material having a predetermined temperature coefficient of expansion, has registration affording means. The aforesaid assembly comprises an auxiliary mount formed of a material having a temperature coefficient of expansion greater than that of the faceplate and has a central opening of such span as to enable the mount to surround the periphery of the faceplate. Index bosses, cooperable with the faceplate registration affording means, are detachably secured to the mount. A planar metal foil having a predetermined pattern of apertures and formed of a material having a temperature coefficient of expansion not greater than that of the mount is secured to the mount.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: July 9, 1991
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4891548
    Abstract: A front assembly for a tension mask color cathode ray tube comprises a faceplate having an inner surface thereon for receiving a pattern of luminescent phosphor elements. A foil mask is supported in tension by the faceplate and has a pattern of apertures registered with the pattern of phosphor elements. The assembly is characterized by the faceplate having registration affording means disposed on the external periphery of the faceplate outside the tube vacuum enclosure constructed and arranged to permit repeatable precise registration between said foil mask and said faceplate to facilitate screening the pattern of phosphor elements upon the faceplate inner surface. By having the registration affording means located externally of the tube enclosure, the viewable area of the inner surface is maximized and the faceplate size for a given screen area is reduced.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: January 2, 1990
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4876480
    Abstract: The use of a flat faceplate comprised of self-polished float glass substantially reduces the cost of a cathode ray tube incorporating a flat tensioned shadow mask while affording a high degree of video image acuity. The float glass flat faceplate does not require polishing and acid etching to provide a high degree of smoothness in its inner and outer surfaces and, in combination with a flat tensioned shadow mask mounted to the flat faceplate, offers a low cost, easily manufactured and assembled color CRT front assembly.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: October 24, 1989
    Assignee: Zenith Electronics Corporation
    Inventors: Kazimir Palac, deceased, by Judith A. Palac, heir, by Donald T. Palac, heir, by Susan M. Palac, heir
  • Patent number: 4816053
    Abstract: The use of a flat faceplate comprised of self-polished float glass substantially reduces the cost of a cathode ray tube incorporating a flat tensioned shadow mask while affording a high degree of video image acuity. The float glass flat faceplate does not require polishing and acid etching to provide a high degree of smoothness in its inner and outer surfaces and, in combination with a flat tensioned shadow mask mounted to the flat faceplate, offers a low cost, easily manufactured and assembled color CRT front assembly.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: March 28, 1989
    Assignee: Zenith Electronics Corporation
    Inventors: Kazimir Palac, deceased, Judith A. Palac, heir, Donald T. Palac, heir, Susan M. Palac, heir
  • Patent number: 4790785
    Abstract: Components-in process and assemblies-in-process are disclosed for use in the manufacture of a high-resolution color cathode ray tube having a tensed foil shadow mask. A first component-in-process comprises a faceplate with a target area for receiving at least one pattern of phosphor deposits. The faceplate has attached at preselected, widely spaced locations on the sides thereof a plurality of discrete, detachable first indexing elements. A second component-in-process comprises a shadow mask support assembly having a frame ultimately constituting a part of the tube envelope; the frame supports the shadow mask in precise adjacency to the target area. The frame has attached on the sides thereof a like plurality of discrete, detachable second indexing elements which are in facing adjacency to the first indexing elements on the faceplate when the faceplate and frame are mated. Temporary attachment of the indexing elements is by means of a thermally degradable cement.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: December 13, 1988
    Assignee: Zenith Electronics Corporation
    Inventors: Sae D. Lee, Kazimir Palac
  • Patent number: 4723089
    Abstract: A novel color selection electrode assembly is utilized in screening a pattern of phosphor areas upon the faceplate of a color cathode ray tube. The faceplate, which is formed of a material having a predetermined temperature coefficient of expansion, has registration affording means. The aforesaid assembly comprises an auxiliary mount formed of a material having a temperature coefficient of expansion greater than that of the faceplate and has a central opening of such span as to enable the mount to surround the periphery of the faceplate. Index bosses, cooperable with the faceplate registration affording means, are detachably secured to the mount. A planar metal foil having a predetermined pattern of apertures and formed of a material having a temperature coefficient of expansion not greater than that of the mount is secured to the mount.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: February 2, 1988
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4721879
    Abstract: A novel color selection electrode assembly is utilized in screening a pattern of phosphor areas upon the faceplate of a color cathode ray tube. The faceplate, which is formed of a material having a predetermined temperature coefficient of expansion, has registration affording means. The aforesaid assembly comprises an auxiliary mount formed of a material having a temperature coefficient of expansion greater than that of the faceplate and has a central opening of such span as to enable the mount to surround the periphery of the faceplate. Index bosses, cooperable with the faceplate registration affording means, are detachably secured to the mount. A planar metal foil having a predetermined pattern of apertures and formed of a material having a temperature coefficient of expansion not greater than that of the mount is secured to the mount.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: January 26, 1988
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4713034
    Abstract: In-process articles of manufacture are disclosed for the manufacture of a high-resolution color cathode ray tube having a tensed foil shadow mask. A first article-in-process comprises a faceplate with a target area for receiving at least one pattern of phosphor deposits. The faceplate has attached at preselected, widely spaced locations on the sides thereof a plurality of discrete, detachable first indexing elements. An article-in-process comprises a shadow mask support assembly having a frame ultimately constituting a part of the tube envelope; the frame supports the shadow mask in precise adjacency to the target area. The frame has attached on the sides thereof a like plurality of discrete, detachable second indexing elements which are in facing adjacency to the first indexing elements on the faceplate when the faceplate and frame are mated. Temporary attachment of the indexing elements is by means of a thermally degradable cement.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: December 15, 1987
    Assignee: Zenith Electronics Corporation
    Inventors: Sae D. Lee, Kazimir Palac
  • Patent number: 4712041
    Abstract: A front assembly is disclosed for use in a color cathode ray tube. The assembly according to the invention comprises a glass faceplate having a target area with a pattern of phosphor deposits covered with an electron-pervious electrically conductive metallic film. A shadow mask support assembly includes a glass frame sealed to and constituting an integral part of the tube envelope for supporting a shadow mask in precise spaced adjacency to the target area. The frame has an electrically conductive frame coating on at least a portion thereof. An electrically conductive foil shadow mask adapted to be charged with a high voltage is mounted in tension on the frame in electrical contact with a conductive frame coating. Conductive means which may comprise spring means is in contact with the mask or the conductive frame coating and the metallic film or a conductive extension thereof for conducting high voltage on the mask to the metallic film.
    Type: Grant
    Filed: August 20, 1985
    Date of Patent: December 8, 1987
    Assignee: Zenith Electronics Corporation
    Inventors: Siegfried M. Greiner, Kazimir Palac
  • Patent number: 4701666
    Abstract: A flat panel tensed foil shadow mask registration system includes three radially disposed grooves on the panel and three oppositely disposed grooves on the frame that supports the tensed mask. Three spherical balls serve to align the panel and the frame in a precise relationship. The balls are permitted to roll in the grooves and one of the grooves in each pair is shorter than the other to restrict the range of positions of the ball in the other groove of each pair when the panel and frame are in the precise relationship.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: October 20, 1987
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4695523
    Abstract: A method of screening a tensed mask CRT faceplate to correct for color purity errors resulting from screening of the tube through a tension mask whose supporting frame is distorted by the tensile forces exerted by the mask on the frame. The method includes heating the tensed mask during photoscreening of the tube to a temperature sufficient to substantially reduce the strain imparted to the support frame.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: September 22, 1987
    Assignee: Zenith Electonics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4656389
    Abstract: A novel color selection electrode assembly is utilized in screening a pattern of phosphor areas upon the faceplate of a color cathode ray tube. The faceplate, which is formed of a material having a predetermined temperature coefficient of expansion, has registration affording means. The aforesaid assembly comprises an auxiliary mount formed of a material having a temperature coefficient of expansion greater than that of the faceplate and has a central opening of such span as to enable the mount to surround the periphery of the faceplate. Index bosses, cooperable with the faceplate registration affording means, are detachably secured to the mount. A planar metal foil having a predetermined pattern of apertures and formed of a material having a temperature coefficient of expansion not greater than that of the mount is secured to the mount.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: April 7, 1987
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4652791
    Abstract: A color cathode ray tube comprises an envelope including a faceplate portion having on an inner surface a pattern of cathodoluminescent phosphors deposited thereon. The envelope includes a continuous peripheral support surface within the envelope spaced approximately a predetermined distance from the inner surface of the faceplate. The tube has a tensed foil aperture mask cemented to the support surface by cement means. The mask blank has a first field of apertures in coordinate relationship to the pattern of cathodoluminescent phosphors for color selection. A second field of apertures peripheral to the first field, and coordinate with the support surface, provides for receiving cementing means during assembly of the blank into a cathode ray tube. The apertures have the form of a band of substantially uniform width at least along the sides of the blank, and are small in diameter relative to the width of the band.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: March 24, 1987
    Assignee: Zenith Electronics Corporation
    Inventors: Kazimir Palac, Charles J. Prazak, III, Paul Strauss
  • Patent number: 4614892
    Abstract: An improvement in a tension mask type color cathode ray tube comprising an envelope funnel that includes a bell portion, one extremity of which has a sealing land. The tube further comprises a flat face panel formed of a material having a predetermined temperature coefficient of expansion. The panel has a target area adapted to receive a pattern of luminescent color phosphor deposits. A sealing surface circumscribes the target areas. The improvement concerns a constituent structure which is disposed between the funnel sealing land and the panel sealing surface and which is frit sealed therebetween. The structure defines a central opening which is dimensioned to enclose the panel target area and it is formed of a material having a temperature coefficient of expansion approximating that of the face panel. The structure itself comprises means which define a support surface that confronts the target, which surface is adapted to fixedly receive a tensed color selection mask.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: September 30, 1986
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4593224
    Abstract: A color cathode ray tube comprises a faceplate having a predetermined pattern of phosphor deposits upon a target surface thereof. A color selection electrode assembly includes a frame which supports in tension a foil having an array of apertures related to the predetermined pattern of phosphor deposits on the faceplate. Means are disclosed for sealing the assembly between the faceplate and the rear envelope section of the tube to incorporate the color selection electrode assembly as an integral part of the cathode ray tube. Indexing means on the assembly and faceplate provide for repeated interregistered matings of the color selection electrode assembly with the faceplate. A method of utilizing the electrode assembly for screening the pattern of phosphor deposits on the faceplate is also disclosed.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: June 3, 1986
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4593225
    Abstract: A tension mask color cathode ray tube comprises an envelope funnel having a central axis and including a bell portion, one extremity of which has a sealing land. A flat or cylindrical face panel has a target adapted to receive a pattern of luminescent primary color elemental phosphor areas, with a sealing land circumscribing the target. A color selection electrode structure sealed between the sealing lands of the funnel and panel constitutes an integral part of the tube envelope. The electrode structure has a central opening dimensioned to enclose the panel target, and includes a frame supporting a tensed foil color selection electrode. The frame has a support surface fixedly receiving and maintaining the electrode in tension. The frame further has an axial dimension which establishes the color selection electrode at a predetermined Q-distance from the target on the face panel.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: June 3, 1986
    Assignee: Zenith Electronics Corporation
    Inventors: Leonard Dietch, Kazimir Palac
  • Patent number: 4591344
    Abstract: A method of making a color cathode ray tube is disclosed that utilizes a tensed color selection electrode assembly as a stencil for screening a pattern of luminescent phosphor deposits upon a faceplate. The faceplate has a target area and a peripheral sealing area and a plurality of registration-affording means at selected locations about its periphery. The faceplate is utilizable as a constituent of a color cathode ray tube. Electrode assembly comprises frame means to which is bonded a planar tensed foil. Means are provided for bonding the faceplate and the frame means such that the frame becomes an integral part of the vacuum envelope for the tube during final assembly of the tube. Indexing means mechanically associated with the frame and cooperable with the faceplate registration-affording means to facilitate multiple registered matings of the frame and the faceplate during the screening.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: May 27, 1986
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4581561
    Abstract: The invention concerns a novel image reproducing structure for use in a cathode ray tube. This structure comprises a glass substrate which is transmissive of visible light and has a screen supporting target surface on one side thereof and a viewing surface on the opposite side. The screen comprises a phosphor deposit which is applied to at least a portion of the target surface and responds to electron beam impingement thereon to produce a visible image of a predetermined hue. The image reproducing structure further includes filter means in the form of a stain that permeates an area of the glass substrate to form an integral part thereof and exhibits a predetermined different hue. The stain permeated area is interposed between at least a part of the phosphor deposit and the substrate viewing surface.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: April 8, 1986
    Assignee: Zenith Electronics Corporation
    Inventor: Kazimir Palac
  • Patent number: 4300071
    Abstract: An improved low-cost mask-faceplate assembly for a shadow-mask-type color cathode ray tube is disclosed. The assembly comprises a glass faceplate having a dished central section and a rearwardly extending flange. A substantially rectangular, frameless shadow mask has a dished perforate central section and rearwardly extending skirt. The mask is relatively stiff about its major and minor axes, but torsionally flexible and unstable with respect to its diagonals. The mask has an integral rim extending radially outward from the edge of the mask skirt to serve as an electron beam shield and to provide added stiffness for the mask. A corner mask suspension system consists of four suspension devices, one at each corner of the mask. Each device comprises a stud affixed to the faceplate flange and arranged to extend radially inwardly along the diagonal of the faceplate. A leaf spring is provided for detachably inter-connecting the mask corner to the stud.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: November 10, 1981
    Assignee: Zenith Radio Corporation
    Inventors: Lawrence W. Dougherty, Kazimir Palac
  • Patent number: 4236184
    Abstract: A multi-function system for use in a color television picture tube having a glass bulb includes a funnel and a faceplate with a rearward flange which mates with and is sealed to the funnel. A pre-formed coil of electrically conductive wire engirds the flange of the faceplate. The coil includes terminal means for connecting the coil to a source of degaussing current for abating residual stray magnetic fields within the tube. Annular enclosure means surrounds the flange and defines an enclosure containing the coil. A body of hardened binder is formed in the enclosure. The body is reinforced by the coil of wire and serves to provide implosion protection for the tube.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: November 25, 1980
    Assignee: Zenith Radio Corporation
    Inventors: Kazimir Palac, Raymond M. Stachniak