Heavy duty security lock

Abstract

A heavy duty security lock is shown that is easy to install to an existing movable closure for holding the closure in a closed position relative to a fixed enclosure. An important feature is the ease of mounting this security lock between the door and the door jamb. In order to prepare the door for receiving this lock, it should have a through hole near the vertical free edge of the door similar to the through hole for receiving a standard cylinder lock on the order of about two and one-eighth inches in diameter. The present invention incorporates a base plate having a perpendicular locking tongue fitted with a shortened collar that is mounted within the through hole in the door. An adjustable locking means engages the collar and fastens the base plate to the door. The locking tongue has a transverse hole. A second element is an eyebolt with a looped head that is mounted into the side of the door jamb so that the looped head is in alignment with the transverse hole in the locking tongue for receiving a padlock therethrough. Other modifications include a two-piece eyebolt or an eyebolt of L-shaped configuration.

Dependencies are inferred from the claim text.