High-strength lock

Patent metadata

Field	Value
Publication number	US-10669739-B2
Application number	US-201916376063-A
Country	US
Kind code	B2
Filing date	Apr 5, 2019
Priority date	Dec 21, 2006
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

Described herein is locking apparatus, method for making a locking apparatus, and method for mounting a locking apparatus to the door of a personal storage container. The locking apparatus may include a threaded portion having deformed threads and a lock body shape to fit a restrictive mounting hole.

First claim

What is claimed is:

1. A locking apparatus, comprising:
a cylinder having a non-cylindrical shape, the cylinder extending from a proximal end to a distal end, wherein the cylinder is configured to fit a non-cylindrical restrictive mounting hole pattern and a cylindrical mounting hole pattern, the cylinder comprising:
a non-arcuate top edge extending along a length of the cylinder;
an arcuate bottom edge disposed opposite the top edge, the arcuate bottom edge subtending an angle less than 180°; and
two substantially straight edges extending from the arcuate bottom edge towards the top edge;
a pair of notched portions disposed on either side of the top edge and parallel to the top edge, the two substantially straight edges connecting the arcuate bottom edge to the pair of notched portions,
wherein the pair of notched portions have a first length smaller than a second length of the cylinder;

at least one groove extending vertically from at least one of the two notched portions to the bottom edge;
a rotatable plug positioned in the cylinder and having a threaded portion, wherein the threaded portion includes one or more threads;
a pin assembly configured to receive a key that selectively prevents and permits rotation of the plug;
a nut cooperating with the threaded portion of the plug; and
at least one of the one or more threads of the threaded portion is deformed, providing a retention force between the threaded portion of the plug and the nut.

2. The locking apparatus of claim 1 , wherein the two substantially straight edges are disposed generally perpendicular to the first pair of notches.

3. The locking apparatus according to claim 1 , wherein the two substantially straight edges are a first pair of substantially straight edges, and the cylinder further includes a second pair of substantially straight edges connecting the pair of notched portions and the top edge.

4. The locking apparatus according to claim 1 , wherein the pair of notched portions extend from the proximate end to a notched portion end disposed between the proximate end and the distal end.

5. The locking apparatus according to claim 1 , wherein the pair of notched portions are a first pair of notched portions, and the cylinder further includes a second pair of notched portions vertically offset from the first pair of notched portions, the second pair of notched portions extending from the notched portion end to the distal end.

6. The locking apparatus according to claim 1 , wherein the cylinder comprises a collar having a bevel.

7. The locking apparatus according to claim 1 , wherein the plug further includes a keyhole disposed opposite to the threaded portion of the plug.

8. The locking apparatus according to claim 7 , further including a spring-hinged dust cover resiliently movable from a first position covering the keyhole to a second position exposing the keyhole.

9. The locking apparatus according to claim 1 wherein the plug is rotatable in a clockwise direction.

10. The locking apparatus according to claim 1 wherein the plug is rotatable in a counter-clockwise direction.

11. The locking apparatus according to claim 1 in which the apparatus further comprises a distinctive legend permanently displayed on the apparatus.

12. The locking apparatus according to claim 11 , wherein the distinctive legend comprises a model number.

13. The locking apparatus according to claim 1 , further comprising a self-locking mechanism.

14. The locking apparatus according to claim 13 , wherein the self-locking mechanism comprises deforming the plug threads by at least one of notching the threads, crimping the threads, warping the threads, flattening the threads, or using asymmetrical thread spacing.

15. A box, including:
a door having a non-cylindrical mounting hole; and
a lock including:
a cylinder having a non-cylindrical shape, the cylinder extending from a proximate end to a distal end, configured to fit a non-cylindrical restrictive mounting hole pattern and a cylindrical mounting hole pattern, the cylinder comprising:
a non-arcuate top edge extending along a length of the cylinder;
an arcuate bottom edge disposed opposite the top edge, the arcuate bottom edge subtending an angle less than 180°;
a pair of notched portions disposed on either side of the top edge, the pair of notched portions extending from the proximate end to a notched portion end disposed between the proximate end and the distal end; and
two substantially straight edges extending from the arcuate bottom edge to the pair of notched portions;
at least one groove extending vertically from at least one of the two notched portions to the bottom edge
a rotatable plug positioned in the cylinder and having a threaded portion, wherein the threaded portion includes one or more threads;
a pin assembly configured to receive a key that selectively prevents and permits rotation of the plug;
a nut cooperating with the threaded portion of the plug;
at least one of the one or more threads of the threaded portion is deformed, providing a retention force between the threaded portion of the plug and the nut;
a cam disposed between the nut and the plug; and
a retaining clip positioned between the non-cylindrical mounting hole and the lock.

16. The box according to claim 15 , wherein the two substantially straight edges are a first pair of substantially straight edges, and the cylinder further includes a second pair of substantially straight edges connecting the pair of notched portions and the top edge.

17. The box according to claim 15 , wherein the non-cylindrical mounting hole includes:
a top edge;
an arced bottom edge disposed opposite the top edge; and
two notched portions disposed on either side of the top edge between the top edge and the bottom edge.

18. The box according to claim 17 , wherein the cam includes a hole configured to receive the threaded portion of the plug.

19. The box according to claim 15 , wherein the mounting hole further includes two side edges extending between the arced bottom edge and a respective one of the two notched portions.

20. The box according to claim 15 , wherein the retaining clip further includes:
a pair of legs forming a substantially U-shaped bracket configured to receive the lock between the pair of legs; and
a mounting piece disposed perpendicular to the bracket.

21. The box according to claim 15 , wherein the cam is shaped as at least one of a hook shape and an oval shape.

Assignees

• United States Postal Service

Inventors

• Irwin Donald E
• Spears Michael L
• Dalton Robert

Classifications

• E05B17/04

  Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member · CPC title

• E05C3/042

  the handle being at one side, the bolt at the other side or inside the wing · CPC title

• E05B15/16

  Use of special materials for parts of locks · CPC title

• E05B9/04 Primary

  Casings} of cylinder locks {(details specific for pin or ball tumbler cylinder locks E05B27/0014; details specific for plate tumbler cylinder locks E05B29/00) · CPC title

• E05B27/0003

  Details · CPC title