Invention Grant
- Patent Title: Pneumatic pin lifting device and pneumatic lift cylinder
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Application No.: US16485728Application Date: 2018-02-12
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Publication No.: US11373896B2Publication Date: 2022-06-28
- Inventor: Michael Dür , Martin Kienreich
- Applicant: VAT HOLDING AG
- Applicant Address: CH Haag
- Assignee: VAT HOLDING AG
- Current Assignee: VAT HOLDING AG
- Current Assignee Address: CH Haag
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: EP17156138 20170214
- International Application: PCT/EP2018/053403 WO 20180212
- International Announcement: WO2018/149780 WO 20180823
- Main IPC: H01L21/687
- IPC: H01L21/687

Abstract:
Disclosed is a pin lifting device for moving and positioning a substrate. Also, a pneumatic drive cylinder is provided having a cylindrical housing enclosing a first internal volume and a first piston assembly, having a first piston and a first piston rod. The first piston assembly can be moved into a fitting position by pressurization of the first internal volume. The device has at least one supporting pin connected to the first piston rod. The drive cylinder has a second piston assembly, which has a second piston and a second piston rod. The second piston assembly is arranged for motion coaxial to the first piston assembly. An end surface of the second piston rod faces the first piston. The first and second piston assemblies are arranged so the first piston and the second piston rod have no contact in the fitting position.
Public/Granted literature
- US20190393073A1 PNEUMATIC PIN LIFTING DEVICE AND PNEUMATIC LIFT CYLINDER Public/Granted day:2019-12-26
Information query
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