Inventors:
Ming Shiao - Anaheim Hills CA, US
Frank Minnella - Fountain Valley CA, US
International Classification:
E05B067/38
Abstract:
A hard shell unibody padlock case designed for a secure padlock, such as is used in the vending machine industry, means to provide resistance to torquing moment, with best mode contemplated including a slip ring designed to fit over the outside wall of the padlock casing, a breakable connection between said slip ring and said unibody padlock case, and grooves on the inside of the casing running parallel to the front and back of the casing and a concurrent groove running on the inside of said slip ring such that the connecting device is seated within the grooves. The preferred method for said means is to use a groove on the outside wall of the lock case, with a screw affixed to the slip ring and into the groove of the lock case such as to be slotted in to the groove. Said screw of sufficient strength to prevent the removal of the outer casing by force, while being weak enough to break into two or more pieces with the application of torque force sufficient to break the lock, shackles or the hasp. After the connection between the slip ring and the casing is broken, the slip ring rotates freely around the side of the casing. Said slip ring is designed such as to slide onto the padlock casing from the back without being able to move off of the padlock casing from the front. Said slip ring is designed such that it can only be applied or removed to the lock casing from the back of the casing. Means is also provided to provide a more secure fastening assembly to securely affix the shackle head housing to said unibody case in a manner which provides resistance to vandalism by drilling. The preferred embodiment of said means is to provide an assembly which comprises a ball bearing at the point of initial contact with a drill bit, with a roll pin aligned after said ball bearing and a set screw aligned after said roll pin.
