Back to results
US 12,565,057 B2Granted
Security elements in covers of secure article by ultrasonic welding
AssigneeThales Dis France SAS
InventorsTaru Syrjanen, Kristian Lappalainen
Life of this patent
Estimating the term…
Abstract
Provided is a secure article, preferably a multi-page article, comprising a front cover, a reverse cover, and at least one security element. The security element can be provided on, and/or, in the front cover and/or the reverse cover, and can be produced by ultrasonic welding. The security element comprises or consists of an optically variable element. Other embodiments are disclosed.
Claims13
A secure article, including a multi-page article, comprising:
- a front cover;
- a reverse cover;
- and
- at least one security element;
- wherein the security element is provided on and/or in the front cover and/or the reverse cover,
- in that the security element is produced by ultrasonic welding, and
- in that the security element comprises or consists of an optically variable element;
- in that the security element comprises at least one diffractive structure that is configured to diffract impinging electromagnetic radiation, the diffractive structure being formed by a surface of the security element and/or being a periodic structure.
5 more elements
A method of producing a secure article as claimed in any one of the preceding claims, the method comprising the steps of:
- providing a front cover;
- providing a reverse cover;
- and
- providing at least one security element;
- wherein the security element is provided on and/or in the front cover and/or the reverse cover, and
- in that the security element is produced by ultrasonic welding, and,
- in that the security element comprises or consists of an optically variable element;
- further comprising the step of providing at least one sonotrode comprising at least one structure to be debossed and/or embossed into the front cover and/or the reverse cover, whereby the security element is generated, and/or
- further comprising the step of providing at least one anvil comprising at least one structure to be embossed and/or debossed into the front cover and/or the reverse cover, whereby the security element is generated.
6 more elements
Dependencies are inferred from the claim text.