Patent ID: 6209575
Filing Date: 2001-04-03
Classification: E05B,Y10T

Abstract:
A lockable exhaust trunk blast gate comprising:a stationary plate;a sliding plate for moving relative to the stationary plate;a set screw including a threaded portion and a pin portion, wherein an end of the threaded portion frictionally secures a position of the sliding plate relative to the stationary plate, and the pin portion is adapted for receiving an adjustment tool; anda removable pin type lock being detachable from the set screw comprising a recess for receiving a vulnerable portion of the set screw which extends from the stationary plate such that the vulnerable portion cannot be accessed, the pin type lock being permitted to rotate relative to the set screw such that threaded engagement with the stationary plate is maintained, wherein access to the set screw is prevented by turning a key in the pin type lock so that an engagement member operatively attached to the said removable pin type lock moves partially into said recess to engage the set screw and thereby prevent the set screw from disengaging with the recess.