Rotary pulse generator
US4321495A · kind A · utility
18Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1981 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Mar 23, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle transmission mounted pulse generator module having a through drive shaft for driving a conventional speedometer cable, a rotor permanent magnet driven by the shaft with predetermined angular freedom therebetween for magnetically indexing the rotor magnet for useable signal generation at low speeds and a coaxial pickup coil assembly encircling the shaft and axially offset from the rotor magnet and compactly mounted with the rotor magnet within a housing sleeve inserted within a transmission housing bore to be driven for generating a pulse for each predetermined increment of travel of the associated vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.