Patents Assigned to Bell Environmental Services
  • Anti-roosting device
    Patent number: 6933446
    Abstract: An anti-roosting device is disclosed. The device includes a track, an electrical conductor, and an electrical source. The conductor is embedded within the track, with a portion of the conductor left exposed. The electrical source provides low amperage at high voltage to the electrical conductor such that the device is harmless to both birds and humans, but will deliver a shock that is effective in keeping birds from roosting thereon.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: August 23, 2005
    Assignee: Bell Environmental Services
    Inventors: Philip M. Waldorf, Sean Smith