Patent ID: 6357804
Filing Date: 2002-03-19
Classification: E05B,E05C,Y10T

Abstract:
A door latch for latching a door of an electrical equipment enclosure, the door latch comprising:a latch body; a latch rod rotatable between locked and unlocked conditions, said latch rod including: a stem with a first end rotatably coupled to said latch body, an extension rod with a first end coupled to a second end of said stem, said extension rod is dimensioned to contact a portion of the electrical equipment enclosure when said latch rod is in said locked condition, a hook coupled to a second end of said extension rod, said hook is separated from said portion of the electrical equipment enclosure by a clearance distance â€œxâ€  during a quiescent condition within the electrical enclosure, and wherein said hook contacts said portion of the electrical equipment enclosure during a pressurized condition within the electrical equipment enclosure, said clearance distance â€œxâ€  is selected to provide a clearance distance â€œyâ€  between the door and the enclosure to allow pressurized gas to escape the enclosure during said pressurized condition; a pushbutton disposed in said latch body, said pushbutton is coupled to said first end of said stem; and a compression spring intermediate said push button and said latch body.