Locknut system
US8172496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2007 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Nov 29, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B39/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A locknut system having a projecting screw threaded member with a first external thread. A nut is mountable on the projecting screw threaded member by means of a corresponding thread. A second different screw thread is formed on the projecting screw threaded member. The second screw thread is of a different hand or a different pitch from the first screw thread. A locking member has a screw thread for engagement with the second screw thread of the projecting screw threaded member and has an engaging surface which can be brought into abutting contact with a corresponding engaging surface on the nut by mating the thread of the locking member with the second thread of the projecting screw threaded member. A coupling member operates to couple the locking member and the nut to substantially prevent relative rotation there between. One of the locking member and the coupling member carries a snap ring which snaps into engagement with a retaining recess provided on the other when the coupling member is mounted in its use configuration, to prevent accidental displacement of the coupling member from the locking member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.