Bolt with a magnet
US6078238A · kind A · utility
9Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | May 26, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/1042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A bolt to be screwed-in into a lubricant-containing housing, including a magnet (4), a head portion (2) having rotation-transmitting surfaces, and a shank portion (3) extending from the head portion (2) and having an outer thread (31) and a recess (32) provided at a free end of the shank portion (3) for form-lockingly receiving the magnet (4) and having a depth (T) measured from the free end of the shank portion (3) and substantially corresponding to an axial width of the magnet (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.