US Patent 7634934 Forged roller

Patent 7634934 was granted and assigned to National Machinery on December, 2009 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

All edits

Edits on 17 Sep, 2023

"Add patent inventor(s)"

Golden AI

edited on 17 Sep, 2023

Edits made to:

Infobox (+2 properties)

Infobox

Patent Inventor Names

Donald E. Krintzline0

Mark W. Bordner0

Edits on 16 Sep, 2023

"Add patent abstract"

Golden AI

edited on 16 Sep, 2023

Edits made to:

Article (+538 characters)

Article

Patent abstract

A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. The tools and staged forming create an improved roller with an advantageous grain pattern and devoid of structural defects previously attributable to the presence of sheared end face material in the radiused corners of the blank and flash at its mid-section.

Edits on 13 Jul, 2023

"Remove leading 0 from patent number"

Golden AI

edited on 13 Jul, 2023

Edits made to:

Infobox (+1/-1 properties)

‌