James G Koneazny

US Patent:

20020166445, Nov 14, 2002

Filed:

May 7, 2002

Appl. No.:

10/140483

Inventors:

James Tagge - Lenox MA, US
Andrew Howansky - Craryville NY, US
James Koneazny - Southfield MA, US

International Classification:

F15B011/00

US Classification:

091/508000

Abstract:

The invention is a bi-fluid actuator for precise bi-directional movement and positioning of a mechanical object or load. The bi-fluid actuator includes a pneumatic fluid container defining opposed first and second pneumatic fluid chambers, and having a first mechanical object secured between the chambers; a hydraulic fluid container defining opposed first and second hydraulic fluid chambers, and having a second mechanical object secured between the first and second hydraulic chambers; a pneumatic fluid controller; and, a hydraulic fluid controller. Directing pneumatic fluid into either the first or second pneumatic chambers, while controlling flow of hydraulic fluid between the first and second hydraulic chambers, controls movement and positioning of the mechanical objects which may be secured to a load.