The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 1989
Filed:
Mar. 28, 1988
Ferdinand Lutz, Heppenheim, DE;
BBC Brown Boveri Aktiengesellschaft, Mannheim, DE;
Abstract
A high-voltage switchgear having a fixed and a moving contact member includes a hydraulic drive for operation of the moving contact member having a piston and cylinder configuration with a piston coupled to the moving contact member. A fluid reservoir configuration supplies fluid under pressure to the piston for driving the piston. A compressor unit at ground potential charges the fluid reservoir configuration. Electrically-insulating, pressure-resistant lines respectively connect the compressor unit with the piston and cylinder configuration and with the fluid reservoir configuration. The piston and cylinder configuration and the fluid reservoir configuration are disposed spatially close to and at the same electrical potential as the moving contact member.