Electric lifting cushion
US6702383B2 · kind B2 · utility
22Cited by
23References
20Claims
0Family size
Inventors
Key dates
| Filing date | Nov 9, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Nov 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electric seat assist device having a seat pivotally secured to a base. One or more cam members extend in generally opposing relationship from the seat and base and are seated on one or more sets of rollers which are linearly adjusted to raise and lower the seat by a drive member which is pivotally mounted relative to the base and the rollers of the seat assist device. Stroke detectors are used to control motor drivingly connected to the drive member after being activated to initiate raising or lowering of the seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.