Patents by Inventor Boris Plesinger

Boris Plesinger 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: 5563641
    Abstract: The present invention provides a removable orifice plate securing structure for use in conjunction with a conventional ink jet printer printhead assembly. The orifice plate securing structure comprises an orifice plate mounting member having a rear end portion disposed in an opposing relationship with the front end surface of the printhead body portion, a front side surface and an opening extending outwardly from the rear end portion to the front side surface. The orifice plate mounting member is configured to removable secure the orifice plate between the front side surface of the orifice plate mounting member and the front end surface of the printhead body portion in an operative alignment position with the ink receiving chambers. The opening is configured to allow ink from the ink discharge orifices to operatively pass outwardly from the orifice plate mounting member.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 8, 1996
    Assignee: Compaq Computer Corporation
    Inventor: Boris Plesinger
  • Patent number: 5535494
    Abstract: A piezoelectric ink jet printhead is formed from two rectangular blocks of PZT material each having interdigitated series of grooves and ribs formed on one side thereof. The blocks are relatively positioned to precisely align the outer sides of their rib portions in a facing relationship to form a printhead body having therein a spaced series of ink receiving channels defined by the facing groove portions of the two blocks and laterally bounded by internal sidewalls defined by the aligned rib portions of the blocks. The channels open outwardly through front and rear end portions of the body. An orifice plate is operatively secured over the front ends of the channels, and the rear ends of the channels are appropriately sealed.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: July 16, 1996
    Assignee: Compaq Computer Corporation
    Inventors: Boris Plesinger, Brad D. Suma
  • Patent number: 5505364
    Abstract: Disclosed are an ink jet printhead and method of manufacturing the same.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: April 9, 1996
    Assignee: Compaq Computer Corporation
    Inventor: Boris Plesinger
  • Patent number: 5179459
    Abstract: Color flat screen displays and methods of fabricating color flat screen displays. Color flat screen displays described herein comprise at least two liquid crystal display panels, each of said panels containing pixels which are substantially aligned, adhesive gaskets formed on a periphery of one side of a first of the two liquid crystal display panels for providing a mechanical connection between the first panel and the second liquid crystal display panel, and a cavity disposed between the first and second liquid crystal display panels formed by the thickness of the adhesive gasket, the cavity being adapted to receive a material for optically matching pixels in the first panel to pixels in the second panel. Color flat screen displays described herein allow for efficient and economical fabrication and also are rugged and sturdy due to the new fabrication methods which are employed.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: January 12, 1993
    Assignee: Compag Computer Corporation
    Inventor: Boris Plesinger
  • Patent number: 5146354
    Abstract: A backlighted liquid crystal display (LCD) system with a light source and a light pipe which is separated from the LCD panel by an air gap to facilitate uniform brightness of the viewing area. The air gap effectively blocks conductive heat transfer from the light source to the LCD panel. The LCD panel is enframed within a metal frame that serves as a heat sink which prevents a temperature gradient across the LDC panel. The light source is fastened to the light pipe and remaining exposed areas of the light source are covered with an insulating material to trap heat and prevent heat radiation to the LCD panel. A sheet of heat conductive material, which lines the inner back surface of a plastic enclosure surrounding the LCD display assembly, serves to equally distribute heat throughout the inner area of the enclosure. The exposed surface of the heat conductive lining is preferably blackened.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: September 8, 1992
    Assignee: Compaq Computer Corporation
    Inventor: Boris Plesinger
  • Patent number: 5061547
    Abstract: A multilayer substrate provides predetermined connections to and between a plurality of integrated circuit chips mounted thereon. A plurality of layers mounted on a surface of a substrate has a plurality of layers comprising a plurality of dielectric layers, a first plurality of metallic layers, and a second plurality of metallic layers. The first plurality of metallic layers has a predetermined pattern for forming the predetermined connections, these being the x-lines and y-lines. Each of the second plurality of metallic layers provides a predetermined voltage level to the integrated circuit chips, and each of the second metallic layers has a screen-like structure. Each of the first and second metallic layers is insulated from the other metallic layers by one of the dielectric layers, except for desired interconnections between the x-lines y-lines, and power layer (or power plane).
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: October 29, 1991
    Inventors: Boris Plesinger, Lynn H. Brown, Edward D. Pisacich
  • Patent number: 4809643
    Abstract: A gas distribution system provides a gas to a chamber comprising a feed tube, having a tube-like configuration with an input and an output. The gas supplied to the input escapes via the output, the output being configured to have a first and second slot opening. The first slot opening has a predetermined first length along the length of the feed tube and has a predetermined first width across the length of the feed tube, and the second slot opening has a predetermined second length along the length of the feed tube and has a predetermined second width across the length of the feed tube. The second slot is contiguous with and abuts the first slot, and further the predetermined second width is smaller than the predetermined first width. The first and second slot configuration provides the gas at the output at a predetermined pressure, the predetermined pressure being reduced from an area near the output.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: March 7, 1989
    Assignee: Honeywell Bull Inc.
    Inventors: Boris Plesinger, Lynn H. Brown
  • Patent number: 4767104
    Abstract: A furnace for firing a non-precious metal paste including organic material, comprising a furnace enclosure, tube-like in shape, having a definable length. First and second ends of the furnace enclosure is open forming an entrance and exit, respectively. A cross-section across the length of the furnace enclosure has a flat base, a first and second vertical wall at each end of the flat base, and a roof, the shape of the roof being essentially the upper half of an ellipse. The interior chamber of the furnace is divided across the length of the furnace enclosure into a burnout zone and a firing zone, the entrance leading to the burnout zone, and the exit being nearest the firing zone. A sparging element distributes a mixture of an inert gas and at least one other gas within the burnout zone, wherein the other gas supports burnout of the organic material.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: August 30, 1988
    Assignee: Honeywell Bull Inc.
    Inventor: Boris Plesinger
  • Patent number: 4665822
    Abstract: A squeegee is utilized in a screen process printer for microcircuits and components thereof. The type is one in which the squeegee and a flat stationary screen are mounted with the squeegee movable and in a wiping action makes contact with the screen so as to press a paste through openings of the screen in a predetermined pattern onto an adjacent substrate. The squeegee comprises a cylindrically shaped object of a predetermined length having a surface covering made of a resiliently deformable material. Further, the squeegee has an external cross-sectional geometric pattern such that a first surface is pushed against the paste in the wiping action. A lower edge of the first surface is above the surface of the screen a predetermined distance, and the first surface is at a predetermined fixed angle with the screen thereby causing a spreading action of the paste on the screen surface.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: May 19, 1987
    Assignee: Honeywell Information Systems Inc.
    Inventors: Boris Plesinger, Lynn H. Brown