The Inorganic Compound Is A Carbonate Patents (Class 508/180)
  • Patent number: 6242391
    Abstract: A water-soluble cutting fluid which is characterized by excellent cooling and lubricating properties and does not exert a harmful influence on the environment. A solution containing hydrogencarbonate ion, bromide ion, carbonic acid ion, and, if necessary, fluoride ion, and being adjusted to a pH of 7.0 to 11.5 can be used as a substitute for a cutting oil. A water-soluble cutting fluid further including additives such as rust-preventive agents and the like can be also used as a substitute for conventional cutting oil.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: June 5, 2001
    Assignee: Yasio Fukutani
    Inventors: Yasuo Fukutani, Eiichiro Nakayama, Yukio Wada, Shunji Suzuki
  • Patent number: 5877130
    Abstract: A machining oil composition comprises at least two ingredients, that is a lubricating base oil and a salt selected from sulfonates of alkali metals and the like. The composition may further comprise a metal composition selected from thiophosphates and the like, and/or sulfur-based extreme pressure agents. Since no chlorine-based extreme pressure agent is contained, little problem on the environmental pollution or the damage of incinerators is involved. The composition exhibits good machining or cutting performance.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: March 2, 1999
    Assignee: Yushiro Chemical Industry Co., Ltd.
    Inventors: Masao Kohara, Hiroyasu Tamura, Hiroshi Tamaru
  • Patent number: 5854181
    Abstract: This invention relates to an automatic transmission oil composition and more particularly, to an automatic transmission oil composition to improve its physical properties such as low-temperature pour property, heat-oxidative stability and friction-adjusting capacity by adding some calcium salicylate compound, an detergent dispersant, to a common lubricant oil.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 29, 1998
    Assignee: Hyundai Motor Company
    Inventor: Gee Sik Na
  • Patent number: 5801129
    Abstract: The invention concerns a method and device for applying a lubricant-carrier layer to the surface of a material which is to be cold-formed, in particular wire material (1) which is subsequently to be cold-drawn, the carrier layer being such that a lubricant can be applied over it. The material used to produce the layer is applied dry. A container is provided to hold a multiplicity of loose pressure-application elements plus a given quantity of the dry carrier-layer material. To produce the lubricant-carrier layer on the wire material, at least part of which is located at any given time inside the container, the pressure-application elements surrounding the wire material are caused to execute a motion such that they apply the carrier-layer material disposed between them to the surface of the wire material mechanically, the pressure-application elements making uniform contact with the surface of the wire material as they move relative to the surface.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: September 1, 1998
    Assignee: Firma August Neuhoff
    Inventor: Hubertus Damm