Tony R Lehnig

US Patent:

60424583, Mar 28, 2000

Filed:

Jun 29, 1998

Appl. No.:

9/106633

Inventors:

Tony R. Lehnig - West Chester OH
Frederick C. Young - Maineville OH
David R. Linger - Cincinnati OH

Assignee:

Cold Jet, Inc. - Loveland OH

International Classification:

B24C 504

US Classification:

451102

Abstract:

An entrained particle flow turning device capable of turning entrained particle fluid flow about an abrupt turn without significant particle size and mass degradation provides significant improvement as part of a complete particle blast system. The turning base allows for preservation of independent particle mass during fluid transportation through a delivery hose ending with passage into a blast nozzle through an abrupt angular change in particle direction. The turning base allows access and confined areas for preferred ergonomic characteristics.

US Patent:

56605803, Aug 26, 1997

Filed:

Feb 28, 1995

Appl. No.:

8/395665

Inventors:

Tony R. Lehnig - West Chester OH

Assignee:

Cold Jet, Inc. - Cincinnati OH

International Classification:

B24B 100

US Classification:

451 38

Abstract:

A convergent-divergent Single/Multiple Expansion wave contour wall and wave Reflection solid wall Nozzle (S/MERN) for use with particle blast systems is provided which includes a single contoured converging-diverging wall opposing a generally flat, solid wall disposed generally parallel to the direction of the jet flow. The transition from a circular delivery hose to the rectangular throat of the S/MERN nozzle is preferably in only one dimension, with the distance between the side support walls being substantially the same as the diameter of the delivery hose. The S/MERN nozzle relies on reflection from the flat, solid wall for Mach wave expansions, rather than reflections of opposing expansion waves as in conventional nozzles.

US Patent:

20150196921, Jul 16, 2015

Filed:

Jan 14, 2015

Appl. No.:

14/596607

Inventors:

- Loveland OH, US
Tony R. Lehnig - West Chester OH, US

International Classification:

B02C 19/00
B02C 23/16
B24C 7/00

Abstract:

A fragmenter provides fragmentation of frangible blast media entrained in a subsonic flow. The flow is converged prior to reaching a fragmenting element, and the convergence may be followed by a constant cross-section area section. Immediately upstream and downstream of the fragmenting element may be an expansion area to reduce the potential of water ice buildup.