Patents Assigned to Perlin Materials Handling Development Co.
  • Caster having a three piece encapsulating bearing assembly
    Patent number: 4494271
    Abstract: A caster which includes a neck at its top portion and a support at its lower portion to which a wheel is rotatably connected. About the neck are a ball bearing retaining plate and a top plate above and releasably secured to the ball bearing retaining plate. Within the plates and about the neck is a completely enclosed raceway which encapsulates thrust ball bearings. The top plate can readily be removed from the ball bearing plate to permit inspection, cleaning, modification, repair and replacement of components of the casters.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: January 22, 1985
    Assignee: Perlin Materials Handling Development Co.
    Inventors: Morton J. Perlin, Richard P. Garneau