William LacourseRockaway, NJ

7233249, Jun 19, 2007

Sep 7, 2004

10/935258

Howard H. Liebermann - Succasunna NJ, US
William C. LaCourse - Alfred NY, US
Alexis G. Clare - Alfred Station NY, US
Wesley A. King - Almond NY, US

Demodulation, Inc. - Westwood NJ

G08B 13/14

3405726, 235493, 164462, 428376, 428378, 428384, 428611, 148110

A glass-coated amorphous metallic microwire is encoded with multi-bit digital information. Encoding is achieved magnetically, optically or through a combination of magnetic and optical encoding processes. Magnetic encoding is carried out by modifying the constituent magnetic domain structure through selective relief of interfacial stress between the glass coating and the amorphous metallic alloy core. It is also achieved by selective surface crystallization of the amorphous metallic core in order to produce a controlled magnetic bias field. Optical encoding is associated with the glass coating. It is readily achieved by fluorescent element deposition, patterned removal of fluorescent element coating, Bragg grating, and thermally activated pattern deposition. The magnetic and optical multi-bit encoding approaches for glass-coated amorphous metallic microwire can be used individually or collectively in either a redundant or a complementary manner. Encoded microwire of the instant invention can be assembled into tags for electronic article surveillance and into numerous other structures as well.

7354645, Apr 8, 2008

Dec 26, 2003

10/746784

Howard H. Liebermann - Succasunna NJ, US
William C. LaCourse - Alfred NY, US

Demodulation, LLC - Westwood NJ

B32B 15/00

428379, 428375, 428389, 174110 A

A metallic glass-coated wire is formed by drawing a hollow glass fiber from a container in which molten alloy is entrained and solidified. Interference stresses extant between the glass coating and the alloy core of the wire are produced by systematically controlling thickness and mechanical elastic properties of the glass. The interference stress is tailored by selection of glass thickness and chemistry to optimize wire drawing process conditions, such as drawing temperature and strain rate. In addition, the interference stress is especially tailored to assure physical integrity of the glass-alloy composite wire product. Local property variations along the wire length are minimized, facilitating production of discrete wire segments especially suited for use in EAS applications.

2005000, Jan 6, 2005

Jun 30, 2004

10/881760

Howard Liebermann - Succasunna NJ, US
William LaCourse - Alfred NY, US

B32B015/04
H01F001/01

148300000, 428433000, 428379000

A drawn glass-coated metallic member has a thermal contraction coefficient differential such that the thermal contraction coefficient of the glass is less than that of the metallic member. The thermal contraction coefficient differential is maintained within a predetermined range during drawing. The glass is placed under residual compression, interfacial bonding between said glass and said wire is substantially uniform, and surface cracking and bond breaks between metal and glass are substantially prevented. A dynamic balance is maintained between the surface tension of the molten alloy and the resistance to high temperature deformation by the glass vessel in which it is contained, enabling the production of glass-coated amorphous or nanocrystalline alloy members having predefined cross-sectional shapes.