Patents Assigned to Daiwa Can Company, Ltd.
  • Patent number: 4800932
    Abstract: An apparatus for determining the internal pressure of a filled can by measuring the reaction force of a filled can body when the can is passed between back-up and measuring rolls which are spaced apart from each other by 2 mm or more than the average diameter of the axially central portion of the can body. At least one of the rolls has a crown-like outer periphery which has an arcuate sectional profile having a radius of 60 mm or above taken in a plane containing the roll axis.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: January 31, 1989
    Assignee: Daiwa Can Company, Ltd.
    Inventors: Masayuki Masuda, Tamotsu Umeyama
  • Patent number: 4358226
    Abstract: A method for conveying articles comprises sucking a first article to be conveyed into a conveyor pipe by utilizing a negative pressure caused by a first air flow, and discharging the first air flow from an intermediate portion of the conveyor pipe and at the same time sucking a second article to be conveyed into the pipe, while lowering the speed of the conveyed first article leaving the conveyor pipe by utilizing a second air flow having a smaller flow rate than that of the first air flow, and an apparatus for receiving and transporting an article conveyed by the above method comprises a window provided at the remaining portion of the upper end part of the conveyor pipe, and a belt conveyor placed just above the upper end part and having an elastic member and magnets.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: November 9, 1982
    Assignee: Daiwa Can Company, Ltd.
    Inventors: Seigo Nagata, Iwao Saito
  • Patent number: 4326401
    Abstract: An apparatus for reverse redrawing of a cup is provided with an annular ring surrounding the upper end periphery of body portion of a die ring, provided concentrically with the die ring, a slightly larger clearance than the wall thickness of the cup to be redrawn being provided between the inside surface of the annular ring and the outside surface of the die ring.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: April 27, 1982
    Assignee: Daiwa Can Company, Ltd.
    Inventor: Kenichi Inoue
  • Patent number: 4206265
    Abstract: A coated metallic article has a paint film formed by applying pigment-containing synthetic resin paints to the substrate and baking or curing the coating. The paint film is made of two or three layers of paint compositions consisting of a synthetic resin in common containing a pigment in common but in different proportions.
    Type: Grant
    Filed: September 28, 1978
    Date of Patent: June 3, 1980
    Assignee: Daiwa Can Company, Ltd.
    Inventor: Hiromichi Shimizu
  • Patent number: 4098420
    Abstract: A cap for a bottle, having a top wall provided with an annular projected part, a skirt portion suspending downward from the peripheral edge of the top wall, a tab suspending downward from a part of the lower edge of the skirt portion, a pair of first separating lines extending toward the top wall from the vicinity of the intersection of the peripheral edge of the tap and the lower edge of the skirt portion, and a pair of second separating lines extending to the vicinity of the upper end of the skirt portion from the lower edge thereof, wherein the distance between the upper ends of the first separating lines is designed such that the terminal ends of the tearing of the first separating lines themselves, or of the tearing effected beyond the lines, are positioned on the tangent line of the internal peripheral circle of the annular projected part.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: July 4, 1978
    Assignee: Daiwa Can Company, Ltd.
    Inventor: Eitoku Torii