US 12,257,941 B2
Air cushion arrangement for a seat, for example a vehicle seat
Erich Dörfler, Landsberg (DE); Helmut Auernhammer, Höttingen (DE); Jürgen Baumgartl, Treuchtlingen (DE); and Michael Scherb, Arberg (DE)
Assigned to ALFMEIER PRÄZISION SE, Treuchtlingen (DE)
Filed by ALFMEIER PRÄZISION SE, Treuchtlingen (DE)
Filed on May 25, 2023, as Appl. No. 18/201,988.
Application 18/201,988 is a continuation in part of application No. 17/612,708, granted, now 11,759,382, previously published as PCT/EP2020/058065, filed on Mar. 24, 2020.
Claims priority of application No. 102019113629.6 (DE), filed on May 22, 2019.
Prior Publication US 2023/0382283 A1, Nov. 30, 2023
Int. Cl. B60N 2/90 (2018.01)
CPC B60N 2/914 (2018.02) [B60N 2/976 (2018.02)] 7 Claims
OG exemplary drawing
 
1. Pulsation module comprising:
a cylinder,
a plurality of pneumatic elements,
a plurality of outlet lines, and
a roller,
the pneumatic elements having an interior volume for filling with air and being arranged concentrically inside the cylinder,
wherein each of the pneumatic elements being connected to a respective outlet line,
where said roller being arranged within said cylinder and being arranged eccentrically relative to said cylinder,
where said pneumatic elements and said roller are arranged such that an eccentric motion of said roller about the longitudinal axis of said cylinder can change the interior volume of said pneumatic elements for providing an air pulse through the outlet line.