US 12,325,333 B2
Multi-pivot seat base assembly
Gilbert Dubocquet, Saint-Jean-Sur-Richelieu (CA); Hélène Trahan, Beloeil (CA); Martin Laliberté, Beloeil (CA); Alain-Olivier Boudreau, St-Jean-sur-Richelieu (CA); Carl Grégoire, Ste-Julie (CA); Philippe Noël, Beloeil (CA); and Stéphane Poulin, Ste-Julie (CA)
Assigned to DEMERS, AMBULANCE MANUFACTURER INC./DEMERS, MANUFACTURIER D'AMBULANCES INC., Beloeil (CA)
Appl. No. 17/997,378
Filed by DEMERS, AMBULANCE MANUFACTURER INC./ DEMERS, MANUFACTURIER D'AMBULANCES INC., Beloeil (CA)
PCT Filed May 3, 2021, PCT No. PCT/CA2021/000039
§ 371(c)(1), (2) Date Oct. 28, 2022,
PCT Pub. No. WO2021/223007, PCT Pub. Date Nov. 11, 2021.
Claims priority of provisional application 63/020,593, filed on May 6, 2020.
Prior Publication US 2023/0166641 A1, Jun. 1, 2023
Int. Cl. B60N 2/04 (2006.01); A61G 3/00 (2006.01); B60N 2/01 (2006.01); B60N 2/02 (2006.01); B60N 2/50 (2006.01); B60N 2/24 (2006.01)
CPC B60N 2/04 (2013.01) [A61G 3/003 (2013.01); B60N 2/01 (2013.01); B60N 2/0224 (2013.01); B60N 2/502 (2013.01); B60N 2/02253 (2023.08); B60N 2/24 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A multi-pivot seat base assembly including:
a first pivot assembly having a first shaft mountable to a floor;
a proximate arm having a proximate end pivotally mounted to the first shaft of the first pivot assembly and a distal end;
a distal arm having a proximate end and a distal end provided with a seat receiving element;
a second pivot assembly pivotally interconnecting the distal end of the proximate arm and the proximate end of the distal arm; the second pivot assembly including a second shaft;
a pivot linking mechanism so configured that a pivotal movement of the distal arm about the second pivot assembly causes a pivotal movement of the proximate arm about the first pivot assembly;
a damping mechanism connected to at least one of the first and second pivot assemblies; and
a controllable locking mechanism associated with at least one of the first and second pivot assemblies to selectively prevent pivotal movement thereof.