Intelligent lift interlock system
US7274980B1 · kind B1 · utility
10Cited by
33References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2005 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Jun 25, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2220/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A microprocessor controlled system for ensuring the safe operation of an auxiliary device, such as a wheelchair lift used in conjunction with a vehicle. The microprocessor preferably allows operation of the lift device when one or more parameters are met. These parameters include the following: the vehicle is in “park”, the parking brake is engaged, the vehicle ignition is “on”, the lift power switch is “on”, and the lift door is open. The present invention does not allow the vehicle to be shifted out of park if the lift door is open and/or when the parking brake is “on”.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.