Theft resistant rotatable lock nut and lock bolt assemblies
View Patent ↗A tamper-resistant fastener assembly having a threaded main body section, an outer protective sleeve and an internal channel housing bearings that provides rotation of the sleeve about the main body and a customized locking head and key configuration providing limited installation and removal of the fastener. The fastener can be a nut or a bolt with internal or external threading.
1. A locking fastener system, comprising:
(a) an outer sleeve;
(b) a substantially cylindrical nut body for insertion within the outer sleeve having an internal threaded section and having at least one slot formed within an outer edge at a proximate end of the threaded nut body;
(c) a first channel at a distal end of the threaded nut body and along at least part of the circumference of the nut body;
(d) a second channel formed within an interior side of the outer sleeve along at least part of the circumference of the interior side of the outer sleeve; and
(e) a plurality of bearings disposed within the first channel and second channel rotatably connecting the outer sleeve and the threaded nut body,
wherein the nut body is received by the outer sleeve with the first channel and second channel in alignment;
wherein said locking fastener system further comprises
a third channel formed along at least part of the circumference of the nut body;
a fourth channel formed along at least part of the circumference of the interior side of the outer sleeve; and
a plurality of bearings disposed within the third channel and fourth channel rotatably connecting the outer sleeve and the nut body,
wherein the nut body is received by the outer sleeve aligning the third channel and the fourth channel.
2. The locking fastener system of claim 1 , further comprising a plurality of ribs formed within the outer sleeve.
3. The locking fastener system of claim 1 , further comprising a substantially cylindrical socket key having at least one tooth disposed on an interior side and of a size and location to be received by a corresponding at least one slot.
4. The locking fastener system of claim 3 , wherein the cylindrical socket key is of a size to be inserted into a gap formed between the outer sleeve and the nut body.
5. The locking fastener system of claim 1 , wherein the locking fastener system is manufactured from steel.
6. The locking fastener system of claim 1 , wherein an arrangement of multiple slots formed within the threaded nut body are disposed at locations about the circumference of the threaded nut body.
7. The locking fastener system of claim 3 , wherein a key code uniquely associates a profile of the nut body and socket key.
8. The locking fastener system of claim 3 , further comprising an opening within the socket key to receive a torque producing device.
9. The locking fastener system of claim 3 , further comprising:
at least one pin located on the interior side of the socket key; and
at least one pin hole corresponding to the at least one pin located on a face of the nut body.
10. A locking fastener system, comprising:
(a) an outer sleeve;
(b) a bolt body for insertion within the outer sleeve having a substantially cylindrical bolt head and an elongated threaded section and having at least one slot formed within an outer edge at a proximate end of the bolt head;
(c) a first channel formed at a distal end of the bolt head and along at least part of the circumference of the bolt head, the first channel disposed substantially perpendicular to the at least one slot;
(d) a second channel formed within an interior side of the outer sleeve along at least part of the circumference of the interior side of the outer sleeve; and
(e) a plurality of bearings disposed within the first channel and second channel rotatably connecting the outer sleeve and the bolt head,
wherein the bolt head is received by the outer sleeve aligning the first channel and second channel;
wherein said locking fastener system further comprises a third channel formed along at least part of the circumference of the bolt head;
a fourth channel formed within an interior side of the outer sleeve along at least part of the circumference of the interior side of the outer sleeve; and
a plurality of bearings disposed within the third channel and fourth channel rotatably connecting the outer sleeve and the bolt head,
wherein the bolt head is received by the outer sleeve aligning the third channel and the fourth channel.
11. The locking fastener system of claim 10 , further comprising a plurality of ribs formed within the outer sleeve.
12. The locking fastener system of claim 10 , further comprising a substantially cylindrical socket key having at least one tooth disposed on an interior side and of a size and location to be received by a corresponding at least one slot.
13. The locking fastener system of claim 12 , wherein the cylindrical socket key is of a size to be inserted into a gap formed between the outer sleeve and bolt head.
14. The locking fastener system of claim 10 , wherein the locking fastener system is manufactured from steel.
15. The locking fastener system of claim 10 , wherein an arrangement of multiple slots formed within an outer edge at a proximate end of the bolt head are disposed at locations about the circumference of the bolt head.
16. The locking fastener system of claim 12 , wherein a key code uniquely associates a profile of the nut body and socket key.
17. The locking fastener system of claim 12 , further comprising an opening within the socket key to receive a torque producing device.
18. The locking fastener system of claim 12 , further comprising:
at least one pin located on the interior side of the socket key; and
at least one pin hole corresponding to the at least one pin located on a face of the bolt head.