Patents by Inventor Richard J. Renk

Richard J. Renk 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).

  • Gear case
    Patent number: 5676221
    Abstract: A gear case assembly and lubricant retaining device therefore wherein the assembly includes a gear case having a hub and/or shaft receiving opening therein and a lubricant retaining device extending toward the interior of said case to reduce lubricant flow through said opening. A part of said lubricant retaining device acts as a diverter to restrict lubricant flow toward said opening and consequential potential losses therethrough.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: October 14, 1997
    Assignees: Carol Ann Mackay, Helen Lou Kurtz
    Inventors: Richard J. Renk, Richard M. Ebert
  • Filler cap
    Patent number: 5255815
    Abstract: The cap is for use in closing the end of an opening as may be provided in a container. The cap has an elastomeric top which is deflectable by a presser plate urged toward the top and opening by a biasing spring. Deflection of the elastomeric top enables the cap to seat and adjust around the opening and accommodate variances therein.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: October 26, 1993
    Assignees: Carol Ann Mackay, Helen Lou Kurtz
    Inventors: Richard J. Renk, Richard M. Ebert
  • Lubricant retaining device
    Patent number: 5123297
    Abstract: A resilient sealing device is provided for accommodating tolerance variations between a lubricant holding case and a hub member. The device has a sealing face including deformable lips which are urged toward the hub by a resilient column and deformable legs held in a retaining channel, with both the column and the legs allowing the lips to recede back into the channel while the edges of the sealing face are held by the edges of the channel.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: June 23, 1992
    Assignees: Carol Ann Mackay, Helen Lou Kurtz
    Inventors: Richard J. Renk, Richard M. Ebert
  • Traction motor suspension bearing lubricator
    Patent number: 5082089
    Abstract: A device for applying lubricant to a rotatable journal having a lubricating body is biased for movement toward the journal along a defined path. Movement of the lubricating body toward the journal is controlled by a low wear, fast-disconnect retaining mechanism.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: January 21, 1992
    Assignees: Carol Ann Mackay, Helen Lou Kurtz
    Inventors: Richard J. Renk, George E. Boller, Richard M. Ebert
  • Lubricant restricting device
    Patent number: 5038631
    Abstract: A device for restricting the flow of lubricant from a locomotive traction motor gear case and along an armature drive shaft of the traction motor and into the drive shaft's bearing mounting assembly, portions of which extend into the gear case. The device may also restrict lubricant flow into a return drain port of the drive shaft's bearing mounting assembly as a result of gear generated splash within the case.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: August 13, 1991
    Assignees: Carol Ann Mackay, Helen Lou Kurtz
    Inventors: Richard J. Renk, George E. Boller, Richard M. Ebert
  • Lubricant restricting device
    Patent number: 4892000
    Abstract: A device for restricting the flow of lubricant from a locomotive traction motor gear case and along an armature drive shaft of the traction motor and into the drive shaft's bearing mounting assembly, portions of which extend into the gear case. The device may also restrict lubricant flow into a return drain port of the drive shaft's bearing mounting assembly as a result of gear generated splash within the case.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: January 9, 1990
    Assignees: Carol A. MacKay, Helen L. Kurtz
    Inventors: Richard J. Renk, George E. Boller, Richard M. Ebert
  • Gear case
    Patent number: 4470324
    Abstract: A lubricant retaining device for use with a gear case having a pair of matable sections with a shaft receiving opening therein. The lubricant retaining device extends inwardly to the interior of said case to reduce lubricant flow through the shaft receiving opening.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: September 11, 1984
    Assignees: Carol A. Mackay, Helen L. Kurtz
    Inventors: Richard J. Renk, George E. Boller
  • Gear case
    Patent number: 4347759
    Abstract: A lubricant retaining device for use with a gear case having a pair of matable sections with a shaft receiving opening therein. The lubricant retaining device extends inwardly to the interior of said case to reduce lubricant flow through said shaft receiving opening.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: September 7, 1982
    Inventors: Richard J. Renk, George E. Boller
  • Bearings (bearing thrust lubrication)
    Patent number: 4229056
    Abstract: A bearing having a lubricant reservoir and a thrust load face wherein a lubricant transfer device is provided to transfer lubricant from the reservoir to the area of the thrust load face.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: October 21, 1980
    Assignee: Gladys D. Miller
    Inventor: Richard J. Renk
  • Traction motor suspension bearing lubrication
    Patent number: 4025079
    Abstract: A traction motor suspension bearing assembly includes a member which engages an axle surface to restrict lubricant losses.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: May 24, 1977
    Assignee: Gladys D. Miller
    Inventors: Richard J. Renk, George E. Boller
  • Traction motor bearing lubrication assembly
    Patent number: 3940189
    Abstract: A traction motor suspension bearing and assembly wherein a bearing liner having grooves cooperating with a member on an axle surface to restrict lubricant losses.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: February 24, 1976
    Assignee: Gladys D. Miller
    Inventors: Richard J. Renk, George F. Boller
  • Closure cap
    Patent number: D256721
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: September 2, 1980
    Assignee: Gladys D. Miller
    Inventors: George E. Boller, Richard J. Renk