Patent ID: 7441428

Claim:
A latch locking apparatus comprising a body having a casing having an open top; a closed bottom; a lower sidewall; an upper sidewall; a distal end; a proximal end; a chamber being defined in the casing between the open top and the closed bottom; an opening being formed through distal end of the casing; a mounting hole being formed through the closed bottom of the casing near the proximal end; a connecting hole being formed through the closed bottom of the casing between the opening and the mounting hole; and a lower mounting post being formed on the closed bottom of the casing near the lower sidewall; an operating member being mounted rotatably in the mounting hole in the casing of the body and having a front end; a pulling arm being formed on the front end of the operating member and having a bottom; a mounting post being formed on the bottom of the pulling arm; and a first spring being connected between the mounting post on the pulling arm and the lower mounting post on the casing; a transmitting device being mounted in the casing, being connected to the operating member and having a latch plate being mounted moveably in the chamber and having a latch end; a mounting end; a latch head being formed on the latch end of the latch plate and extending out the casing from the opening; an upper tail being formed on the mounting end of the latch plate at a position near the upper sidewall of the casing; and a lower tail being formed on the mounting end of the latch plate at a position near the lower sidewall of the casing and having a top; a distal end; and a lower connecting post being formed on the top of the lower tail, and a locking device being connected to the body and the operating member and having a lock cam being connected to the connecting hole of the casing between the latch plate and the operating member and having a rotating ring being mounted rotatably on the lock cam; a center; a through hole being formed through the center of the lock cam; and a locking protrusion being formed on the rotating ring and selectively abutting one of the upper tail of the latch plate and the transmitting lever of the transmitting device; two lock cylinders being respectively mounted with the lock cam and each lock cylinder having an outer end; and a cap being mounted around the corresponding outer end of the lock cylinder; and a handles device being attached to the body and the operating member and having two handles.