US 12,466,352 B2
Restraint systems and restraint system methods
Mike Syrcle, Spokane Valley, WA (US)
Assigned to ADVANCED CONCEPTS IN MANUFACTURING LLC, Spokane Valley, WA (US)
Filed by Advanced Concepts in Manufacturing LLC, Spokane Valley, WA (US)
Filed on May 17, 2021, as Appl. No. 17/322,843.
Application 17/322,843 is a continuation in part of application No. 15/916,094, filed on Mar. 8, 2018, granted, now 11,007,960.
Claims priority of provisional application 62/485,169, filed on Apr. 13, 2017.
Prior Publication US 2021/0270295 A1, Sep. 2, 2021
Int. Cl. B60R 21/02 (2006.01); F15B 1/24 (2006.01); F15B 15/20 (2006.01); F15B 15/26 (2006.01); A63G 31/00 (2006.01); B60R 21/00 (2006.01)
CPC B60R 21/02 (2013.01) [F15B 1/24 (2013.01); F15B 15/202 (2013.01); F15B 15/204 (2013.01); A63G 31/00 (2013.01); B60R 2021/0097 (2013.01); B60R 2021/022 (2013.01); B60R 2021/028 (2013.01); F15B 2015/268 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A manually operable piston assembly comprising:
a piston head within a cylinder, the piston head separating fluid in the cylinder to define rod-side fluid and head-side fluid, wherein the piston head is operably coupled to a seat restraint bar; and
a piston style accumulator in fluid communication with the head-side fluid;
at least one check valve operably arranged to control fluid between the rod-side fluid and the head-side fluid;
at least another check valve operably arranged to control fluid between the head side fluid and the piston style accumulator; and
the piston and check valves configured to operate in at least six positions comprising:
a first position of locking extend static;
a second position of extend movement flow;
a third position of manual override retract flow;
a fourth position of manual override extend flow;
a fifth position of locking retract static; and
a sixth position of retract movement flow.