Patents Assigned to Protec Company
  • Security window adapted to prevent forced entry
    Patent number: 5860371
    Abstract: A security window having one or more vertically movable panels, suitably of a transparent, rigid plastic that is bullet-resistant. The security window is useful for a clerk in a convenience store. The security window is provided with a safety mechanism that is operatively associated with the one or more vertically movable panels, and prevents direct vertical manual movement thereof by a would-be robber.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: January 19, 1999
    Assignee: Protec Company
    Inventor: Michael K. Shelley
  • Security window adapted to prevent forced entry
    Patent number: 5636579
    Abstract: A security window having one or more vertically movable panels, suitably of a transparent, rigid plastic that is bullet-resistant. The security window is useful for a clerk in a convenience store. The security window is provided with a safety mechanism that is operatively associated with the one or more vertically movable panels, and prevents direct vertical manual movement thereof by a would-be robber.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: June 10, 1997
    Assignee: Protec Company
    Inventor: Michael K. Shelley