US 12,129,908 B2
Locking system
Hendrik Rottländer, Essen (DE); and Adrian Seuthe, Wetter (DE)
Assigned to H. Rottländer & A. Seuthe GbR (vertretungsberechtiger Gesellschafter Hendrik Rottländer, Langenberger, Essen (DE)
Appl. No. 17/927,907
Filed by H. Rottländer & A. Seuthe GbR (vertretungsberechtiger Gesellschafter Hendrik Rottländer, Langenberger, STR. 463, 45277), Essen (DE)
PCT Filed May 25, 2021, PCT No. PCT/EP2021/063909
§ 371(c)(1), (2) Date Nov. 28, 2022,
PCT Pub. No. WO2021/239733, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 10 2020 003 133.1 (DE), filed on May 26, 2020; and application No. 10 2021 100 029.7 (DE), filed on Jan. 4, 2021.
Prior Publication US 2023/0349400 A1, Nov. 2, 2023
Int. Cl. F16F 9/18 (2006.01); F15B 15/26 (2006.01); F16F 9/32 (2006.01); F16F 9/34 (2006.01); F16F 9/46 (2006.01); F16F 9/56 (2006.01)
CPC F16F 9/185 (2013.01) [F15B 15/26 (2013.01); F16F 9/3242 (2013.01); F16F 9/34 (2013.01); F16F 9/466 (2013.01); F16F 9/56 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A continuously variable locking system for a cylinder-piston arrangement having a cylinder, which comprises a cap and a base, a piston, which is arranged displaceably in the cylinder and comprises at least one annular piston seal on its outer surface in the circumferential direction, on which piston a piston rod is arranged, which can be pushed at least partially out axially at the cap end of the cylinder, a closing part, which is continuously variable between an open and a closed position, and a fluid disposed in the cylinder,
wherein the cylinder is formed with a double wall having an inner sleeve and an outer sleeve, the piston is disposed in the inner sleeve, a tubular compensating body having seals running in the circumferential direction on its outer and inner surface is displaceably arranged in an annular space between inner sleeve and outer sleeve, the closing part is arranged at the base end of the cylinder and the base end of the inner sleeve can be closed by means of the closing part,
wherein the closing part has an annular projection increasing in the axial direction on the outer circumference and a conical central projection,
wherein an annular projection and a central projection of the closing part pointing in the direction of the inner sleeve, so that a sealable flow gap is formed between the closure part and the inner sleeve, the width of which depends on the position of the closing part.