Patents Assigned to White Shield Inc.
  • Patent number: 5690487
    Abstract: A disposable oral suction tip includes a tubular body having a suction line attachment end, a mouthpiece end, an exterior surface and at least one central passage that extends between the suction line attachment end and the mouthpiece end. A mouthpiece is secured to the mouthpiece end of the tubular body. At least one vacuum release channel is provided having a first end and a second end. The at least one vacuum release channel extends along the exterior surface of the tubular body. The first end of the at least one vacuum release channel is positioned to be placed into a patient's mouth along with the mouthpiece. The second end is spaced from the mouthpiece such that the at least one vacuum release channel provides direct venting of the oral cavity.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: November 25, 1997
    Assignee: White Shield Inc.
    Inventors: Ronald L. S. Whitehouse, Connie Watson
  • Patent number: 5509802
    Abstract: An oral suction tip is described which includes a tubular body. The tubular body has a peripheral sidewall, a first end, a second end, and a single passage for transmitting fluids extending between the first end and the second end. A mouthpiece is provided at the second end of the tubular body. At least one vacuum release aperture extends through the sidewall of the tubular body in direct communication with the fluid passage. The at least one vacuum release aperture is spaced from the mouthpiece, such that when the mouthpiece is inserted into a patient's mouth the at least one vacuum release aperture is not confined within the patient's mouth. A porous guard overlies in spaced relation the at least one vacuum release aperture. This prevents accidental blockage of the at least one vacuum release aperture and also prevents regulation of the suction by means of the at least one vacuum release aperture.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: April 23, 1996
    Assignee: White Shield Inc.
    Inventors: Ronald L. S. Whitehouse, Connie Watson