Pest control system

  • US 6,141,901 A
  • Filed: 09/14/1999
  • Issued: 11/07/2000
  • Est. Priority Date: 09/14/1999
  • Status: Expired due to Term
First Claim
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1. Pest extermination by thermal treatment of enclosed pest-occupying zones comprising the steps of:

  • (a) determining the air penetration parameters for the treatment zone;

    (b) determining CFM requirements for achieving requisite air flow rate goal of between three and five air changes per hour in treatment zone;

    (c) introducing heated outside air into treatment zone at a temperature of at least about 200°

    F. and at the requisite air flow rate;

    (d) elevating temperature in treatment zone at ramp rate of between about 5°

    F. and 10°

    F. per hour until air temperature in the zone reaches level at least equal to the lethal temperature for pests in the treatment zone while maintaining requisite air flow rate; and

    (e) maintaining lethal temperature in treatment zone for at least about eleven hours while maintaining requisite air flow rate.

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