Patents Assigned to Capital Data
  • Safety tire valve
    Patent number: 5365967
    Abstract: A tire pressure indicator which includes a valve stem over-pressure indicator and a valve stem cap under-pressure indicator. The valve stem includes an air porting scheme that releases over-inflation air for escape through a whistling reed configuration. The valve stem cap includes a top translucent panel for coaction with a diaphragm spring contained therebelow. Normal tire pressure distends the diaphragm spring to an upward convex attitude in contact with the underside of the translucent panel to project a visual indicator.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: November 22, 1994
    Assignee: Capital Data
    Inventor: John C. Moore