US 12,221,323 B2
Structure for frame pieces of a pneumatic vacuum elevator
Killakathu Ramanathan Babu, Tamilnadu (IN)
Assigned to Killalathu Ramanathan Babu, (IN)
Appl. No. 17/928,634
Filed by Killakathu Ramanathan Babu, Tamilnadu (IN)
PCT Filed Oct. 5, 2021, PCT No. PCT/IB2021/059113
§ 371(c)(1), (2) Date Nov. 30, 2022,
PCT Pub. No. WO2023/021321, PCT Pub. Date Feb. 23, 2023.
Claims priority of application No. 202141037267 (IN), filed on Aug. 17, 2021.
Prior Publication US 2024/0300780 A1, Sep. 12, 2024
Int. Cl. B66B 9/04 (2006.01); B66B 11/00 (2006.01)
CPC B66B 9/04 (2013.01) [B66B 11/0005 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A structure (10) for one or more frame pieces of a pneumatic vacuum elevator (20) comprising:
at least two horizontal arc pieces (30), wherein each of the at least two horizontal arc pieces (30) comprises a rectangular shape with at least one demi bullnose edge; and
at least two vertical pieces (40),
wherein each of the at least two horizontal arc pieces (30) comprises:
a first arc end (70); and
a second arc end (80),
wherein each of the first arc end (70) and the second arc end (80) comprises an angled cut profile (90),
wherein each of the first arc end (70) and the second arc end (80) are adapted to receive a first coupling piece (100) at the angled cut profile (90),
wherein the first coupling piece (100) comprises at least two holes (110) adapted to mechanically couple the at least two horizontal arc pieces (30) with the respective at least two vertical pieces (40) using a screw-fixing mechanism, upon receiving the respective at least two vertical pieces (40) at the angled cut profile (90),
wherein the at least two holes (110) are positioned at a first predefined position on the first coupling piece (100).