VACUUM SEALING SYSTEM AND DEVICE
First Claim
1. An apparatus for a gate valve between chambers, the apparatus comprising:
- a valve housing defining a flow path between the chambers;
a male valve portion rotatable on a fixed axis in said housing, said male valve portion comprising at least a first male mating surface positioned at a first angle less than perpendicular to said axis;
a female valve portion fixed in said valve housing for receiving said male portion, said female valve portion comprising at least a first female mating surface positioned at a second angle matching said first angle;
an o-ring for sealing said male valve portion to said female valve portion when said male valve portion is rotated into said female valve portion from a fully open position to a fully closed position;
a polished surface which said o-ring contacts when said male valve portion is rotated;
means for providing a sliding action between said male valve portion and said female valve portion when said male valve portion is rotated into said female valve portion, said means for providing a sliding action compressing said o-ring in said fully closed position thereby sealing the gate valve and closing said flow path; and
means for rotating said male valve portion between said fully open position and said fully closed position.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for a gate valve between chambers includes a valve housing defining a flow path. A male valve portion is rotatable on a fixed axis in the housing. The male valve portion including a first male mating surface positioned at a first angle less than perpendicular to the axis. A female valve portion is fixed in the valve housing for receiving the male portion. The female valve portion including a first female mating surface positioned at a second angle matching the first angle. An o-ring seals the male valve portion to the female valve portion when the male valve portion is rotated into the female valve portion. A polished surface contacts the o-ring when the male valve portion is rotated. When the male valve portion is rotated into the female valve portion the o-ring is compressed thereby sealing the gate valve and closing the flow path.
8 Citations
20 Claims
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1. An apparatus for a gate valve between chambers, the apparatus comprising:
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a valve housing defining a flow path between the chambers; a male valve portion rotatable on a fixed axis in said housing, said male valve portion comprising at least a first male mating surface positioned at a first angle less than perpendicular to said axis; a female valve portion fixed in said valve housing for receiving said male portion, said female valve portion comprising at least a first female mating surface positioned at a second angle matching said first angle; an o-ring for sealing said male valve portion to said female valve portion when said male valve portion is rotated into said female valve portion from a fully open position to a fully closed position; a polished surface which said o-ring contacts when said male valve portion is rotated; means for providing a sliding action between said male valve portion and said female valve portion when said male valve portion is rotated into said female valve portion, said means for providing a sliding action compressing said o-ring in said fully closed position thereby sealing the gate valve and closing said flow path; and means for rotating said male valve portion between said fully open position and said fully closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for a gate valve between chambers, the apparatus comprising:
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a valve housing defining a flow path between the chambers; a male valve portion rotatable on a fixed axis in said housing, said male valve portion comprising a first male mating surface positioned at a first angle less than perpendicular to said axis and a second male mating surface positioned at a second angle less than perpendicular to said axis; a female valve portion fixed in said valve housing for receiving said male portion, said female valve portion comprising a first female mating surface positioned at a third angle matching said first angle and a second female mating surface positioned at a fourth angle matching said second angle; an o-ring positioned on said first male matting portion for sealing said male valve portion to said female valve portion when said male valve portion is rotated into said female valve portion from a fully open position to a fully closed position; a polished surface on said first female portion which said o-ring contacts when said male valve portion is rotated; a slider between said second male valve portion and said second female valve portion where when said male valve portion is rotated into said female valve portion, said slider provides a sliding action and compresses said o-ring in said fully closed position thereby sealing the gate valve and closing said flow path; and an actuator rotating said male valve portion between said fully open position and said fully closed position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for a gate valve between chambers, the apparatus comprising:
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means for housing the gate valve defining a flow path between the chambers; means for closing said flow path; means for receiving said means for closing; means for sealing said means for closing and said means for receiving; means for contacting said means for sealing in a low friction manner; means for providing a sliding action between said means for closing and said means for receiving; and means for rotating said means for closing between a fully open position and a fully closed position. - View Dependent Claims (20)
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Specification