Vacuum Or Reduced Pressure Utilized Patents (Class 427/350)
  • Patent number: 4035148
    Abstract: A substantially surfactant-free composition consists essentially of a water-soluble phosphate and a water-insoluble alumina having a particle size less than 3 microns. An aqueous mixture of the phosphate and alumina is useful for cleaning carpets and imparting a soil repellent finish thereto.
    Type: Grant
    Filed: May 6, 1976
    Date of Patent: July 12, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Carroll A. Metzger, Fred M. Habermehl, III, Ned C. Webb
  • Patent number: 3987530
    Abstract: A heat fuser roll and the method of manufacture thereof. The roll comprises a deformable layer on a base member and the deformable layer is produced by coating the base member with a silicone gum material containing no curing agent and treating the coated base member by heating in an inert atmosphere to a temperature at which substantial cross-linking occurs for a predetermined time to produce a tough long-wearing silicone rubber deformable layer.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: October 26, 1976
    Assignee: International Business Machines Corporation
    Inventors: Robert B. Atkin, Frederick C. Tarmann, John H. Wong
  • Patent number: 3985918
    Abstract: A target for an image pickup tube having high sensitivity, low dark current and low amount of lag-image is manufactured by forming a hetero-junction by the evaporation process. A first layer of ZnS.sub.x Se.sub.1.sub.-x or Zn.sub.u Cd.sub.1.sub.-u S (wherein 0 .ltoreq. x .ltoreq. 1 and 0 .ltoreq. u .ltoreq. 1) is deposited on a light transmitting substrate having a coefficient of linear expansion of 56 .times. 10.sup..sup.-7 /.degree.C - 110 .times. 10.sup..sup.-7 /.degree.C and a second layer of (Zn.sub.y Cd.sub.1.sub.-y Te).sub.z (In.sub.2 Te.sub.3).sub.1.sub.-z (wherein 0.1 .ltoreq. y .ltoreq. 0.9 and 0.7 .ltoreq. z .ltoreq. 1) is deposited on the first layer. The substrate is then heat treated in an inert gas atmosphere or under vacuum at a temperature of 350.degree.-650.degree.C, preferably 500.degree.-600.degree.C for a time period of 5-90 minutes, preferably 5-15 minutes.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: October 12, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masakazu Fukai, Shinji Fujiwara, Hiroyuki Serizawa, Osamaru Eguchi, Yukimasa Kuramoto
  • Patent number: 3974306
    Abstract: A method for coating the inner surface of a metal pipe having an inner diameter of about 1 to 15 cm, which comprises feeding from one end of said metal pipe dry particles of a coating composition into the interior of the metal pipe preheated at a temperature of from a softening point of said coating composition to below a melting point thereof, sucking air at the same time from the other end of the metal pipe so as to form an air stream carrying the particles and flowing in the interior of the pipe at a flow rate of about 4 to 20 m/sec and to allow the particles to deposit on the inner surface of the pipe, and fusing the deposited particles at a reduced pressure of 10 to about 100 mm Hg to form a continuous film on the inner surface of the pipe.
    Type: Grant
    Filed: October 4, 1973
    Date of Patent: August 10, 1976
    Assignee: Kansai Paint Company, Ltd.
    Inventors: Keizo Inamura, Tadayoshi Tatsuno, Toshio Okoshi
  • Patent number: 3969552
    Abstract: Porous articles impregnated with certain anaerobic polymerizable sealants and having a coating of such sealant on their surface can have such coating removed by dissolving the sealant in an aqueous solution of a surfactant having the general formula X.sup.1 --O(C.sub.2 H.sub.4 O).sub.x X.sup.2. The removal can be done at room temperature.
    Type: Grant
    Filed: May 8, 1974
    Date of Patent: July 13, 1976
    Assignee: Loctite Corporation
    Inventors: Bernard M. Malofsky, Elliott Frauenglass, Harold A. Fowler
  • Patent number: 3959520
    Abstract: A processing system which can provide a continuous assembly-line procedure for placing a catalytic coating on ceramic honeycomb type members embodies the use of a plurality of pressure tight chambers such that each ceramic member can be vacuum treated and then rapidly coated, as well as pressure treated and air blown to effect rapid coating fluid removal and partial drying. After each coating operation, there is controlled drying and high temperature curing. Also, in a preferred controlled system, there is a weighing of each element before and after each coating step to determine an amount of coating retained for comparison with a predetermined standard.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: May 25, 1976
    Assignee: Universal Oil Products Company
    Inventors: William A. Hoyer, Lowell W. Johnson, Richard J. Schoenenberger
  • Patent number: 3936545
    Abstract: A vapor deposited aluminum metallizing film is transformed into a transparent insulating oxide at selective locations at which a film of bismuth or sodium is vapor deposited either beforehand on the substrate or afterward on the aluminum. The oxide forms at only the selected locations to the full depth of the layer and has insulating qualities of interest for electrical components. The use of a pigmented substrate which will show through the transparent oxide areas is useful for providing visible legends, symbols, scales, and reference margins, marks or rasters.
    Type: Grant
    Filed: October 31, 1972
    Date of Patent: February 3, 1976
    Assignee: Robert Bosch G.m.b.H.
    Inventors: Klaus Brill, Christian Glassman
  • Patent number: 3935331
    Abstract: In preparing an electron beam resist film of a copolymer of an olefin and SO.sub.2, the steps of removing insoluble particles, drying the films under high vacuum and storing them in a moisture-free atmosphere are required to prevent cracking of the films during development.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: January 27, 1976
    Assignee: RCA Corporation
    Inventors: Eugene Samuel Poliniak, Howard George Scheible, Richard Joseph Himics
  • Patent number: 3935332
    Abstract: Three developer solvents 2-methylcyclohexanone, 3-methylcyclohexanone, and a mixture of acetonyl acetate and acetone, improve the resolution of electron beam exposed films of poly(1-methyl-1-cyclopentene-SO.sub.2) copolymers.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: January 27, 1976
    Assignee: RCA Corporation
    Inventors: Eugene Samuel Poliniak, Richard Joseph Himics