Patient transport apparatus with asymmetric throttle assembly
US12429898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2021 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Oct 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G2505/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient transport apparatus with a throttle arranged for rotation by a user between a maximum forward position and a maximum backward position to modulate propulsion via a wheel drive system. A biasing element urges the throttle toward a neutral position defined between the maximum forward and backward positions. A limiter restricts rotation of the throttle and includes a first surface, a second surface, and a guide arranged to abut the first surface to inhibit rotation beyond the maximum forward position and to abut the second surface to inhibit rotation beyond the maximum backward position. The guide is closer to the second surface than to the first surface in the neutral position such that rotation from the neutral position to the maximum forward position occurs along a first arc and rotation from the neutral position to the maximum backward position occurs along a second arc smaller than the first arc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.