Patents Assigned to Keystone Lamp Manufacturing Corporation
  • Patent number: 4028543
    Abstract: An elongated tubular element is bent to form an upwardly extending vertical portion, a downwardly extending vertical portion and a horizontal portion joining the two vertical portions and functioning as a support element. A lamp fixture is mounted adjacent the top of the upwardly extending vertical portion and a counterweight is mounted adjacent the lower end of the downwardly extending vertical portion. The counterweight causes the center of gravity of the lamp to be below the horizontal portion of the tubular element so that when the horizontal portion is resting on a support surface, the lamp is balanced in a substantially upright position.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: June 7, 1977
    Assignee: Keystone Lamp Manufacturing Corporation
    Inventor: Joseph Oster
  • Patent number: D243550
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: March 1, 1977
    Assignee: Keystone Lamp Manufacturing Corporation
    Inventor: Joseph Oster