Bellows pump having adjustable stop cam for varying the stroke

US4655690A · kind A · utility

Assignee

• Lang Apparatebau GmbH · DE

Inventors

• Kay Boedecker · Chieming, DE
• Robert Scheurl · Inzell, DE
• Hans-Erwin Strasser · Siegsdorf, DE

Key dates

• Filing date: Nov 21, 1985
• Grant date: Apr 7, 1987
• Expiry date: Nov 21, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B43/0063
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A bellows pump with the improvement of an adjustable index for uniformly controlling the amount of fluid displaced in each expansion and compression cycle.