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US 4,455,933 AGranted
Apparatus and method for simultaneously printing and embossing plastic and sealing and/or tear sealing the same
OwnerArthur W. Bichselinventor
Life of this patent
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OwnerArthur W. Bichselinventor
Estimating the term…
Apparatus is provided for simultaneously printing on plastic and embedding the printing in the plastic, and cutting or tear sealing out an area of the plastic within which the printing and embossing is effected. The apparatus includes a base with a printing and embossing arrangement relatively displaceable on the base. A first spring arrangement is provided between the printing and embossing arrangement and the base and a power source is provided to supply high-frequency heating power to the base. The first spring arrangement forms a path for the power to pass from the base into the printing and embossing arrangement. A second spring arrangement is coupled to the printing and embossing arrangement and insures the inking, registration and penetration of the same into the plastic when the plastic is softened due to the application of the power. According to the method, the plastic is softened and the ink is forced into and below the surface of the plastic to mix with the plastic such that the plastic is simultaneously printed upon and embossed with the inking and embossing being in registration.
Apparatus for simultaneously printing on plastic and embedding the printing in the plastic, said apparatus comprising a base member, a printing and embossing means relatively displaceable on said base member, first spring means between said printing and embossing means and said base member, power means to supply high-frequency heating power to said base member, said first spring means being compressible and forming a path for the power from the base member into said printing and embossing means, and second spring means between said printing and embossing means and base member and insuring the registration with an penetration of the latter into the plastic when the plastic is softened due to the application of said power, said first and second means respectively urging the printing and embossing means away from the base member, the second spring means being stronger than the first spring means, said first spring means including at least one leaf spring and said second spring means including at least one helical spring.
Dependencies are inferred from the claim text.