US 12,258,764 B2
Staircase with adjustable height risers
Vaea Augustino Santos, Vallejo, CA (US)
Filed by Vaea Augustino Santos, Vallejo, CA (US)
Filed on Feb. 24, 2023, as Appl. No. 18/174,286.
Prior Publication US 2024/0287811 A1, Aug. 29, 2024
Int. Cl. E04F 11/02 (2006.01); E04F 11/025 (2006.01); E04F 11/104 (2006.01); E04F 11/18 (2006.01)
CPC E04F 11/0255 (2013.01) [E04F 11/1041 (2013.01); E04F 11/1834 (2013.01); E04F 2011/1821 (2013.01); E04F 2011/1827 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A staircase device;
said staircase comprising staircase components;
said staircase components comprising a plurality of steps, a plurality of adjustable height risers, fixed-length banisters, fixed-length stringers, Newel posts; a lower landing and an upper landing;
each said adjustable height riser comprising a top riser portion connected to a bottom riser portion by at least one riser hinge, such that the height of said adjustable height riser is configured by a two-portion angle between said top riser portion and said bottom riser portion;
said staircase configured so that adjusting a height between said lower landing and said upper landing comprises modifying said two-portion angle over at least some of said plurality of adjustable height risers.