Claims
- 1. A dual plate gas assisted heater module comprising:a main module having an internal chamber and including first and second vertically spaced annular gasket members; a first and a second subchamber each selectively communicating with the main module internal chamber and being disposed vertically spatially apart with respect to one another such that the internal chamber separates the first and second subchambers; a movable disk-shaped poppet member disposed within the internal chamber and engageable with the first and second annular gasket members to cause sealing of one of the first and second subchambers when moved toward and into engagement with a selective one of the first and second subchambers.
- 2. A heater module as defined in claim 1 further characterized by the main chamber including at least one valve for providing selectively controllable access to said internal chamber.
- 3. A heater module as defined in claim 2 further characterized by the movable disk-shaped poppet member having upper and lower vertically spaced apart planar support surfaces disposed on vertically opposites sides thereof.
- 4. A heater module as defined in claim 3 further characterized by each of the two vertically planar spaced apart support surfaces of said movable member being located on said movable member at a distance such that when said movable member is moved, respectively, between engagement with the first and second subchambers, one of said first and second planar support surfaces is disposed in alignment with the at least one gate valve.
- 5. A heater module as defined in claim 4 further characterized by each of the first and second chambers being cylindrically shaped opening shaped as a circle into the main module internal chamber, the circle opening of the first and second gasket members each having a diameter which is smaller than the surface area of the movable disk-shaped poppet member.
- 6. A heater module as defined in claim 5 further characterized by each of the first and second subchambers having a means for communicating an inert gas between the supply of inert gas and each subchamber.
- 7. A heater module as defined in claim 6 further characterized by means for providing a vacuum source in selective communication with each of the first and second subchambers.
- 8. A heater module as defined in claim 7 further characterized by providing the movable disk-shaped poppet member as a substantially circular member having an outer diameter which is larger than the diameters of the circular opening of each of the first and second gasket members; andthe circular opening into each of the subchambers being disposed about the juncture of the main chamber and each of the subchambers and an annular seal being provided at the juncture for engagement with an associated face of the circular disk-shaped poppet member.
- 9. A heater module as defined in claim 8 further characterized by the circular vertically movable disk-shaped poppet member having a top surface associated with first subchamber and capable of being disposed in line with the at least one gate valve when the disk-shaped poppet member is moved to a lowered position.
- 10. A heater module as defined in claim 9 further characterized by a plurality of L-shaped holding members depending from the lower support surface of the circular disk-shaped poppet member, the generally L-shaped holding members being radially directed inwardly from points which are inwardly disposed relative to the inner diameter of each of the first and second subchambers.
- 11. A heater module as defined in claim 8 further characterized by the L-shaped members having a generally horizontal portion which extends in a plane generally coincident with the at least one gate valve when the movable disk-shaped poppet member is moved into an upper position coinciding with sealing of the first subchamber.
Parent Case Info
This application is based upon provisional application Ser. No. 60/055,332 filed on Aug. 8, 1998, on which priority for the present application is based.
US Referenced Citations (16)
Provisional Applications (1)
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Number |
Date |
Country |
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60/055332 |
Aug 1998 |
US |