US 12,239,237 B2
Non-upholstered ergonomic seat with anatomical properties for maximum comfort
Bartosz Bodnar, Jozefoslaw (PL); Katarzyna Warzecha, Jozefoslaw (PL); Waclaw Niedzielski, Piaseczno (PL); Maciej Bodnar, Wroclaw (PL); and Filip Olenderek, Wroclaw (PL)
Assigned to INVENTRA Sp. z o.o., Warsaw (PL)
Appl. No. 18/246,579
Filed by Black Special Systems Sp. z o.o., Wroclaw (PL)
PCT Filed Sep. 28, 2021, PCT No. PCT/PL2021/000072
§ 371(c)(1), (2) Date Mar. 24, 2023,
PCT Pub. No. WO2022/075867, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 435589 (PL), filed on Oct. 5, 2020.
Prior Publication US 2023/0414000 A1, Dec. 28, 2023
Int. Cl. A47C 7/02 (2006.01); A47C 7/46 (2006.01)
CPC A47C 7/021 (2013.01) [A47C 7/029 (2018.08); A47C 7/46 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A seat having a profiled upper surface with recesses and inclinations of a part of the upper surface, wherein the upper surface of the seat is variously shaped such that from a rear edge, said upper surface is inclined downwards, following an arc, towards a front edge of the seat, and the upper surface has rear recesses, central recesses, front recesses, and the side recesses arranged thereon, symmetrically in relation to the longitudinal symmetry axis of the seat, where all of which are located within a profiled ergonomic niche with a shape similar to the letter H, while a transverse arm of the profiled ergonomic niche connects longitudinal arms of the profiled ergonomic niche forming a relief groove, while the rear recesses, central recesses, and front recesses have different lengths and depths, and have an ellipsoidal shape; and are arranged one after the other along a longitudinal arm of the profiled ergonomic niche, and side recesses are arranged between the central recesses and front recesses and side edges of the seat.