Patent · US Expired

Anti-tip caster suspension for a wheelchair

US6543798B2 · kind B2 · utility

120Cited by

24References

28Claims

0Family size

Assignee

Pride Mobility Products Corporation · US

Inventors

Walter E. Schaffner · Shavertown, US
Walter Watkins · Courtdale, US
Gerald White · Hunlock Creek, US

Key dates

Filing date	Mar 19, 2001
Grant date	Apr 8, 2003
Priority date	—
Expiry date	Mar 19, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61G5/043
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An anti-tip suspension for a wheelchair having rear casters is defined. The suspension includes a rocker arm support, a rocker arm and a spring. The rocker arm is pivotally attached to the rocker arm support so that it is rotatable with respect to the rocker arm support. The spring engages the rocker arm and rocker arm support, biasing them away from one another. The rocker arm includes a rotation limiter that limits the rotation of the rocker arm with respect to the rocker arm support in one direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.