Pressure fluid operated cylinder device

US4751867A · kind A · utility

Assignee

• Atlas Copco Aktiebolag · SE

Inventors

• Par Johansson · carrer de Sertori, SE
• Per-Olof H. Krantz · Borås, SE

Key dates

• Filing date: Jun 19, 1981
• Grant date: Jun 21, 1988
• Expiry date: Jun 19, 2001

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B15/2838
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pressure fluid operated cylinder device having means to indicate that the piston (14) is at or near an end position. The indicating means comprises a rod-like member (1) which is actuated by the piston (14). The movement of rod (1) is transformed into a rotary movement by rack (2) and pinion (16). A cam (4) actuates a valve (5) or a microswitch (6).