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US 5,963,132 AGranted
Encapsulated implantable transponder
AssigneeAvid Indentification Systems, Inc.
InventorJay Yoakum
Life of this patent
Estimating the term…
Abstract
An EID or RFID transponder having an encapsulant with an open end to allow insertion of the transponder circuitry and a phase changing material such as an epoxy used to both secure the circuitry of the transponder within the encapsulant and seal the open end of the encapsulant.
Claims17
A transponder for an electronic identification system comprising:
- an antenna;
- a transponder circuit including a radio frequency identification signal processing circuit selected from the group consisting of active, half-duplex and full-duplex transponder circuits electrically interconnected to said antenna;
- an encapsulant formed so as to have an open end to allow insertion of said transponder circuit and said antenna;
- and
- an epoxy bonding and sealing material to secure said transponder circuit and said antenna in said encapsulant and form a cap to seal said open end of said encapsulant.
2 more elements
A transponder for an electronic identification system comprising:
- a transponder circuit selected from the group consisting of active, half duplex and full duplex electronic identification circuits;
- an encapsulant having an open end to allow insertion of said transponder circuit;
- and
- a phase change material substantially filling said encapsulant when in a liquid phase and forming a cap which seals said open end of said encapsulant when in a solid phase.
1 more element
A transponder for an electronic identification system comprising:
- an antenna;
- a transponder circuit including signal processing circuitry electrically interconnected to said antenna;
- an encapsulant formed so as to have an open end to allow insertion of said transponder circuit and said antenna;
- an epoxy bonding and sealing material to secure said transponder circuit and said antenna in said encapsulant and seal said open end of said encapsulant;
- and
- a ridge of hardened epoxy formed on an outer surface of said encapsulant so as to extend radially outward from said encapsulant.
3 more elements
Dependencies are inferred from the claim text.