Patents by Inventor Ervin M. Rickert

Ervin M. Rickert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low grade material axle shaft
    Patent number: 4895700
    Abstract: A new SAE 1541M alloy steel composition consisting essentially of 0.40-0.48% carbon, 1.35-1.61% maganese, 0.16-0.30% silicon, 0-0.23% chromium and the balance iron and other materials not affecting hardenability of the steel, especially adapted for forming axle shafts in the 1.70-2.05" diameter range to be used as drive axles with an axle load carrying capacity between 30,000 and 44,000 pounds.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: January 23, 1990
    Assignee: Dana Corporation
    Inventors: Kent E. Davison, Ervin M. Rickert
  • Low grade material axle shaft
    Patent number: 4820357
    Abstract: A new SAE 1541M alloy steel composition consisting essentially of 0.40-0.48% carbon, 1.35-1.61% maganese, 0.16-0.30% silicon, 0-0.23% chromium and the balance iron and other materials not affecting hardenability of the steel, especially adapted for forming axle shafts in the 1.70-2.05" diameter range to be used as drive axles with an axle load carrying capacity between 30,000 and 44,000 pounds.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: April 11, 1989
    Assignee: Dana Corporation
    Inventors: Kent E. Davison, Ervin M. Rickert