Rekeyable shrouded lock
AssigneeMaster Lock Company LLC
InventorHorst Lebrecht
Life of this patent
Estimating the term…
Abstract
A shrouded shackle lock having two shell halves with a cover plate in one shell half and a hole in the opposite other shell half. Fastener means positioned in the lock are turnable by a wrench inserted in the hole in the other shell half for removing the cover when the fastener means is disengaged from the cover. Upon the removal of the cover the lock cylinder is removable for rekeying or substitution. The lock shell halves are engaged together using a lock retainer ring welded to one shell half and thereafter bent over and around the other shell half.
Claims9
In a shrouded shackle lock having a shell with a front half portion and a rear half portion, a curved shackle, a lock cylinder, and a mechanism connecting the lock cylinder to the shackle, the improvement comprising
- an opening in the rear half shell portion;
- a removable cover plate shaped to cover a second opening in the front half portion;
- fastener means for fastening such cover plate to the shell and aligned to permit a wrench tool to be inserted into the rear half shell opening to engage the said fastener means;
- a fastener means holding means within the shell for capturing and holding the fastener means when the cover has been disengaged from the fastener means;
- and
- rotatable blocking means positioned in the shell to block insertion of the wrench into fastener means when the lock is in its closed position.
A method of engaging two generally circular first and second shell halves of a shrouded shackle lock comprising
- placing the first shell half in a lock retainer ring including a curved side piece;
- attaching such first shell half to the ring;
- placing the second shell half on the first shell half;
- and
- bending the curved side piece of such ring over the second shell half to hold the first and second shell halves together.
A shrouded shackle lock having first and second shell halves secured together within a lock retainer ring having base means attached to the first half and having a curved side piece bent over and around the second half.
In a shrouded shackle lock having a shell with a front half portion and a rear half portion, a curved shackle, a lock cylinder, and a mechanism connecting the lock cylinder to the shackle, the improvement comprising
- an opening in the rear half shell portion;
- a removable cover plate shaped to cover a second opening in the front half portion through which second opening the lock cylinder can pass when the cover plate is removed;
- fastener means for fastening such cover plate to the shell and aligned to permit a wrench tool to be inserted into the rear half shell opening to engage the said fastener means;
- and
- rotatable blocking means positioned in the shell to block insertion of the wrench into fastener means when the lock is in its closed position.
Dependencies are inferred from the claim text.