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US 2022/0397131 A1Published application
Piston unit of a working cylinder
AssigneeBuemach Engineering International B. V.
InventorJosef Bueter
Life of this patent
Estimating the term…
Abstract
A piston unit of a working cylinder includes a piston and a piston rod. The piston has an axial bore hole formed therein. The piston rod is received in the axial bore hole. The piston rod and the piston are connected by a material-bond by a circumferential laser ring weld seam. The laser ring weld seam defines a pressure medium-tight sealing plane.
Claims9
1-8. (canceled)
A piston unit of a working cylinder, comprising:
- a piston and a piston rod, said piston having an axial bore hole formed therein, said piston rod being received in said axial bore hole,
- said piston rod and said piston being connected with a material-bond by a circumferential laser ring weld seam, said laser ring weld seam defining a pressure medium-tight sealing plane.
The piston unit of a working cylinder according to wherein said piston rod has a chromium-plated outer lateral surface.
Dependencies are inferred from the claim text.