Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

Method for forming cylindrical armor elements

Patent image
NRL

Methods for forming armored glass cylinders suitable for improving resistance of armor to armor piercing rounds, explosively formed penetrators, or other threats. Cool a cylindrical glass or ceramic element to a temperature below that of a cylindrical casing, place the cylindrical glass or ceramic element into the cylindrical casing while the cylindrical glass or ceramic element is cool, and seal the cylindrical casing and allow the temperature of the cylindrical glass or ceramic element to rise, such that the cylindrical casing compresses the cylindrical glass or ceramic element. Alternately, heat a metal cylindrical casing, press glass or ceramic into the cylinder while the metal cylinder is at an elevated temperature, seal the metal cylindrical casing while metal cylindrical casinger is at an elevated temperature, and allow the metal cylinder to cool, such that when cooled, the cylindrical casing will compress the glass in all directions.

Inventors: 
Roland, Charles M.; Fragiadakis, Daniel M.; Gamache, Raymond M.
Patent Number: 
Technical domain: 
Machines and Processing
FIle Date: 
2014-07-29
Grant Date: 
2016-03-29
Grant time: 
609 days
Grant time percentile rank: 
11
Claim count percentile rank: 
5
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US NAVY