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US 8,511,688 B2Granted
Intermittent sealing device
AssigneePraxair Technology, Inc.
InventorsDavid Gordon Wilson, Jon M. Ballou
Life of this patent
Estimating the term…
Abstract
An exemplary embodiment disclosed herein relates to an articulatable sealing device. The device includes a plurality of seal elements each of which is urgable against a seal-surface, a fixing member tightenable about a perimeter of the seal elements, and a retractor in operable communication with the plurality of seal elements and able to move the plurality of seal elements in a desired direction.
Claims14
A sealing device, comprising:
- a plurality of seal elements each of which is urgable against a seal-surface, each seal element has an arcuate male edge on a first side and an arcuate female edge on a second side opposite the first side, and wherein the arcuate male edge of one seal element is engagable with the arcuate female edge of an adjacent seal element and is sealable thereto;
- a fixing member tightenable about a perimeter of the seal elements;
- a retractor in operable communication with the plurality of seal elements and able to move the plurality of seal elements in a desired direction;
- and
- at least one pull rod sized to communicate an urging force of the retractor to the fixing member while preventing excess heat from reaching the retractor.
2 more elements
A sealing device, comprising:
- a plurality of seal elements each of which is urgable against a seal-surface;
- a fixing member tightenable about a perimeter of the seal elements;
- a retractor in operable communication with the plurality of seal elements and able to move the plurality of seal elements in a desired direction;
- and
- at least one pull rod sized to communicate an urging force of the retractor to the fixing member while preventing excess heat from reaching the retractor.
2 more elements
Dependencies are inferred from the claim text.