U.S. Patents issued to PurePulse Technologies subsidiary this year,
covering sterilization techniques:
# 5,768,853 "Deactivation of microorganisms", issued June 23, 1998.
patent.womplex.ibm.com
[Exemplary Claim] .......... .......... .......... .......... .......... ..........
What is claimed is:
1. An apparatus for deactivating microorganisms comprising:
- a flashlamp;
- packaging material moving means for moving packaging material relative to the flashlamp in order to sequentially expose portions of the packaging material to high-intensity, short-duration pulses of polychromatic light in a broad spectrum emitted from the flashlamp;
- a water jacket surrounding the flashlamp; and
- an external coating applied to first and second ends of the water jacket.
.......... ..........
# 5,786,598 "Sterilization of packages and their contents using high-intensity, short-duration pulses of incoherent, polychromatic light in a broad spectrum", issued July 28, 1998.
patent.womplex.ibm.com
[Exemplary Claim] .......... .......... .......... .......... .......... ..........
What is claimed is:
1. An apparatus for sterilizing microorganisms in a container comprising:
- the container, wherein the container includes a polyolefin, and wherein the container transmits light in a spectrum of from between 180 nm and 300 nm;
- a port coupled to the container including means through which a product within the container can be withdrawn, and
- a flashlamp system including means for generating high-intensity, short-duration pulses of polychromatic light in a broad spectrum, and for deactivating microorganisms within the container by illuminating the container with the pulses of light having been generated.
.......... ..........
Both were issued a few months ago, so perhaps this is old news. From Boolean search on assignee name: PurePulse or Purepulse.
Previous U.S. Patents to PurePulse: #s 5447733; 5489442; 5658530.
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