And Roller Or Bearing To Accommodate Deflection Of Spring Patents (Class 267/243)
  • Mobile refueling vessel
    Patent number: 9931986
    Abstract: A mobile vessel for refueling engines at remote refueling sites. The vessel has a tank with side walls and a rectangular bottom portion. The bottom portion is configured to rest on the ground and it includes an inner wall and a lower plate. The bottom portion further includes spacer elements between the inner wall and lower plate that defines a gap there between for collecting fuel that may leak from the tank.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: April 3, 2018
    Assignee: MRB Enterprise Inc.
    Inventor: Mark William Beard
  • Semi-elliptical spring suspension with automatic spring rate varying capacity
    Patent number: 5251886
    Abstract: A semi-elliptical spring suspension system is provided in conjunction with a trailing arm and the suspension system may be readily mounted from the longitudinal side members of a vehicle frame. The suspension system semi-elliptical spring comprises a composite spring whose spring rate increases dramatically as the load on the spring is increased and the suspension system is constructed in a manner which isolates the semi-elliptical spring from twisting forces and wind up torque.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: October 12, 1993
    Inventor: Joseph S. Bursel