Reciprocating pump, system or reciprocating pumps, and method of driving reciprocating pumps

US7458309B2 · kind B2 · utility

Inventors

• Tom M. Simmons · Kamas, US
• John M. Simmons · Marion, US
• David M. Simmons · Francis, US

Key dates

• Filing date: May 18, 2006
• Grant date: Dec 2, 2008
• Expiry date: Oct 29, 2026

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B43/0736
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Reciprocating pumps are disclosed. Particularly, reciprocating pumps including pressure chambers and fluid chambers defined by flexible members are disclosed. The volume of the pressure chambers and fluid chamber may be controlled using a piston driven by the flow of a control fluid to a pressure chamber and associated piston chamber. The flow of the control fluid may be directed to a first pressure chamber and associated piston chamber or a second pressure chamber and associated piston chamber. A pneumatically driven switch or an electrically driven switch may direct the flow of control fluid. The electrically driven switch may be controlled with a timer, a pressure sensor, or an optical sensor. The reciprocating pump requires minimal modification to permit the use of a pneumatic switch or electrical switch.