Patents Represented by Attorney Jules Morris
  • Patent number: 6062570
    Abstract: A stem seal having first and second wiping members circumjacent a stem is disposed within a bore. A lubricant-bearing ring is disposed about the stem within the bore between the wiping members, under compression therefrom. Projections from the wiping members intrude into the lubrication ring so as to depress the central surface areas thereof. Similar projections are used to center a coil spring against one of these seal members and against an additional seal member. By forming the lubricant ring of open-cell loam or mesh construction, superior lubricant bearing capacities may be achieved.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: May 16, 2000
    Assignee: Barber-Colman
    Inventor: Irving C. Erickson