US 11,672,344 B2
Support surface
Steven DuFresne, Hartland, WI (US)
Assigned to Anthro Form, LLC, Waukesha, WI (US)
Filed by Anthro Form, LLC, Waukesha, WI (US)
Filed on Jul. 14, 2022, as Appl. No. 17/864,997.
Claims priority of provisional application 63/351,191, filed on Jun. 10, 2022.
Claims priority of provisional application 63/221,657, filed on Jul. 14, 2021.
Prior Publication US 2023/0036247 A1, Feb. 2, 2023
Int. Cl. A47C 7/18 (2006.01); A47C 7/24 (2006.01); A47C 7/02 (2006.01); A47C 31/12 (2006.01)
CPC A47C 7/029 (2018.08) [A47C 7/24 (2013.01); A47C 31/126 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A chair comprising:
a base;
a support surface provided on the base, the support surface comprising a single unitary body formed of a single-density substrate, the support surface further comprising:
a top surface contoured to accommodate a pelvis of a user;
a bottom surface; and
cutouts extending into a portion of the support surface from the bottom surface towards the top surface, the cutouts being positioned beneath an expected location of a user's bony prominences and configured to provide a controlled structural collapse of the support surface by varying a stiffness in a cross-section;
a fabric cover coupled to the support surface; and
a low-friction interface positioned between the support surface and the fabric cover and extending across a top surface of the support surface, the low-friction interface positioned between the support surface and the expected location of the bony prominences of the user, the interface comprising a low-friction fabric.