Mechanically expandable annular seal
A mechanically expandable annular reusable seal assembly to form an annular hermetic barrier between two stationary, parallel, and planar containment surfaces is described. A rotatable ring, attached to the first surface, has ring wedges resembling the saw-tooth array of a hole saw. Matching seal wedges are slidably attached to the ring wedges and have their motion restricted to be perpendicular to the second surface. Each seal wedge has a face parallel to the second surface. An annular elastomer seal has a central annular region attached to the seal wedges' parallel faces and has its inner and outer circumferences attached to the first surface. A rotation of the ring extends the elastomer seal's central region perpendicularly towards the second surface to create the fluid tight barrier. A counter rotation removes the barrier. 6 figs.
- Research Organization:
- Westinghouse Hanford Co
- DOE Contract Number:
- AC14-76FF02170
- Assignee:
- RLO; EDB-94-124973
- Patent Number(s):
- US 4394022; A
- Application Number:
- PPN: US 6-306998
- OSTI ID:
- 7147623
- Country of Publication:
- United States
- Language:
- English
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