Patents Assigned to Eastern Poly Packaging Company
  • Plastic snap fastener
    Patent number: 3965952
    Abstract: This invention is a dual element, plastic snap fastener assembly for bags, raincoats, cartons, portfolios and the like. Each fastener element in the assembly is sealed to one side of its supporting material with its coupling member, i.e. a stud or socket, projecting through an aperture in the material to the other side of the material where the coupling member is interengaged by the cooperating member of the other element in the assembly.
    Type: Grant
    Filed: November 13, 1972
    Date of Patent: June 29, 1976
    Assignee: Eastern Poly Packaging Company
    Inventors: Samuel J. Rivman, Bernard Cohen, Alvaro Da Costa
  • Apparatus for securing articles to film-like material
    Patent number: 3940307
    Abstract: This invention is a method and apparatus for securing snap fasteners to supporting material. An aperture is formed in the supporting material and the socket or stud of the fastener, as the case may be, is allowed to project through the aperture. The supporting material is then heat sealed to the fastener around the aperture. Preferably, both the supporting material and the snap fasteners are made of heatsealable, thermoplastic material.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: February 24, 1976
    Assignee: Eastern Poly Packaging Company
    Inventors: Samuel J. Rivman, Alvaro Da Costa