| CPC B60N 2/1605 (2013.01) [B60N 2/14 (2013.01); B60N 2/164 (2013.01); B60N 2/1685 (2013.01)] | 19 Claims |

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1. A seat riser system, the system comprising:
a base having a base center line, a first base end, a second base end opposite and spaced apart from the first base end along the base center line, a first base side extending between the first base end and the second base end, and a second base side opposite and spaced apart from the first base side, wherein the base includes a top base side and a bottom base side opposite and spaced apart from the top base side, wherein the seat is closer to the top base side than it is to the bottom base side, wherein the base further includes a coupling flange extending along the entirety of each of the first base end, the second base end, the first base side, and the second base side, wherein the coupling flange is spaced apart from the bottom base side such that, when the one or more coupling coupling flange is coupled to a floor surface, the bottom base side is disposed opposite the floor surface from the coupling flange; and
a seat having a seat center line, a first seat end, a second seat end opposite and spaced apart from the first seat end along the seat center line, a first seat side extending between the first seat end and the second seat end, a second seat side opposite and spaced apart from the first seat side, and a bottom seat surface rotationally coupled to the base such that the seat is rotatable about a seat rotational axis between a first rotational position and a second rotational position,
wherein the seat is movable in a direction having a component vector in a direction parallel to the rotational axis and relative to the base between a raised position and a lowered position, wherein the seat is disposed above the coupling flange in the lowered position, and
wherein the base includes a four-bar linkage, wherein the four-bar linkage is movable to cause the seat to move between the raised position and the lowered position, wherein an end of the four-bar linkage is rotatably coupled to a portion of the base that is closer than the coupling flange to the bottom base side.
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