Patents Assigned to Mercantile & Technical Promotions Inc.
  • Patent number: 4391273
    Abstract: The present invention refers to improvements in disposable items, particularly self-destructing or otherwise automatically non-reusable hypodermic syringes having a self-destructing element which is actuated during the injection stroke of the piston. The invention provides an upper stop member, generally provided by a plate with a circular hole having a diameter permitting withdrawal of the plunger but not the piston and also a cylindrical protuberance adjacent the injection end of the cylinder and extending beyond the cylindrical wall so as to shield the fingers of the user from a self-destructing pin forced through the bottom wall of the cylinder under completion of the injection stroke. A cover plate for said cylindrical protuberance having an interior hole for the injection needle is also shown.
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: July 5, 1983
    Assignee: Mercantile & Technical Promotions Inc.
    Inventor: Marcelo Chiquiar-Arias
  • Patent number: 4358028
    Abstract: An improved unit-dose disposable container of molded plastic preferably manufactured by injection molding in which the flexible body, rigid nozzle and breakable tip of the container are of successively narrower widths so as to maximize the number of mold cavities, which reduces manufacturing cost. The tip is designed so that it can be rotated between the thumb and forefinger by a relative movement between same transverse to the longitudinal axis of the container so as to minimize upsetting the contents of the container when the tip is broken off.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: November 9, 1982
    Assignee: Mercantile & Technical Promotions Inc.
    Inventor: Marcelo Chiquiar-Arias