Robert L Carlo

US Patent:

6502447, Jan 7, 2003

Filed:

Dec 14, 2000

Appl. No.:

09/736966

Inventors:

Kenneth L. Adams - Lockport NY
Michael E. Harmer - Medina NY
Robert L. Carlo - Ransomville NY

Assignee:

Voss Manufacturing, Inc. - Sanborn NY

International Classification:

B21D 5304

US Classification:

72326, 723796, 72385, 72414

Abstract:

A progressive die for forming a turbulator having multiple rows of axial corrugations. The corrugations are slit and offset such that artificial turbulence is generated as it passes through the corrugations. The device includes a plurality of dies disposed along an axial material direction. A flat strip of material enters the dies and is folded about its longitudinal axis in a relatively wide V-fold. As the strip of material moves forward, it is intermittently stamped in the series of dies. The initial dies create a central V-shaped fold that gradually narrows into a U-shaped channel with straight walls. Once the first corrugation is formed, a series of progressive dies form the remaining corrugations in alternating fashion. Next, the material moves through a slitting station that provides apertures and an axial offset such that adjacent sections of the corrugation are slit and offset in the axial direction.

US Patent:

53500121, Sep 27, 1994

Filed:

Aug 21, 1992

Appl. No.:

7/934011

Inventors:

Kazimierz Sadowski - Ransomville NY
Donald Ziemendorf - Sanborn NY
Robert Carlo - Ransomville NY
Gary Kochems - North Tonawanda NY

Assignee:

Voss Manufacturing, Inc. - Sanborn NY

International Classification:

F28D 102

US Classification:

165152

Abstract:

A serpentine louvered heat exchange element comprising a folded metallic strip having a length and width wherein the length is over ten times the width prior to being folded. The strip has back and forth folds with legs having substantially equal lengths defined therebetween. A plurality of the legs are provided with louvres having openings which allow the passage of fluid. Each of the folds have a fold apex with an observable preformed fold arc.