Michael K Kriegsmann

US Patent:

7587971, Sep 15, 2009

Filed:

Mar 21, 2005

Appl. No.:

11/085665

Inventors:

Michael K. Kriegsmann - Glen Ellyn IL, US

Assignee:

Sunstream Scientific - Chicago IL

International Classification:

F01B 29/00

US Classification:

92 88, 92 85 R

Abstract:

A pneumatic cylinder designed to convert compressed air into mechanical output is disclosed. A piston assembly, sealed at both end by caps, contains and guides the motion of a piston assembly. Pressure forces on the piston assembly are transmitted via a mechanical structure that distends via a slot that runs the length of the piston assembly. A flexible steel band, which passes through the piston assembly, seals the slot to minimize air leakage. An air control device, such as a servo valve, is operatively coupled to the piston assembly and travels with the piston assembly when a differential pressure is produced on the piston assembly. This arrangement results in a dynamic relationship between airflow and differential pressure that is conducive to precision force and motion control. In addition, the end caps may include snubbers to diffuse sound waves associated with air moving in the piston assembly of the pneumatic cylinder.

US Patent:

8015913, Sep 13, 2011

Filed:

Jul 28, 2008

Appl. No.:

12/181114

Inventors:

Michael K. Kriegsmann - Chicago IL, US

Assignee:

Sunstream Scientific, Inc. - Chicago IL

International Classification:

F16J 15/18
F01B 31/12

US Classification:

92163, 92 5 R

Abstract:

A pneumatic cylinder designed to convert compressed air into mechanical output is disclosed. The pneumatic cylinder includes a piston and rod assembly with supporting components coaxially disposed and arranged to achieve a linear mechanical force in accordance with a differential pressure across the piston. A cylindrical sleeve, secured to end caps on both openings, encircles the piston and rod assembly and helps guide the piston during travel. A conductive coil is coupled to the cylindrical sleeve to provide sensing of a position of the piston. Additionally, a manifold, which serves as a conduit for airflow between each individual cylinder volume and an external air control device, is disposed such that the cylindrical sleeve and end caps are nested, in a concentric manner, within the manifold. A manifold divider assembly is disposed such that a plurality of end channels are isolated from each other. This arrangement results in a dynamic relationship between airflow and differential pressure that is conducive to precision force and motion control.

US Patent:

20050229776, Oct 20, 2005

Filed:

Mar 10, 2005

Appl. No.:

11/078863

Inventors:

Michael Kriegsmann - Glen Ellyn IL, US

International Classification:

A24D003/04

US Classification:

09208500B

Abstract:

A pneumatic cylinder designed to convert compressed air into mechanical output is disclosed. The pneumatic cylinder includes a piston and rod assembly with supporting components coaxially disposed and arranged to achieve a linear mechanical force in accordance with a differential pressure across the piston. A cylindrical sleeve, secured to end caps on both openings, encircles the piston and rod assembly and helps guide the piston during travel. Additionally, a manifold, which serves as a conduit for airflow between each individual cylinder volume and an external air control device, is disposed such that the cylindrical sleeve and end caps are nested, in a concentric manner, within the manifold. This arrangement results in a dynamic relationship between airflow and differential pressure that is conducive to precision force and motion control.