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US 6,270,713 B1Granted
Tip seal for scroll type compressors and manufacturing method therefor
AssigneeAmerican Standard International Inc.
InventorsDaniel R. Crum, William L. Stichman
Life of this patent
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Abstract
A single piece tip seal for use in scroll compressors is produced using a polyetheretherkeytone base material injected into a mold having two ingates to the mold cavity.
Claims7
A method of fabricating a tip seal for a scroll compressor from an engineered material comprising the steps of:
- defining a cavity in a mold, said cavity being in the shape of an involute curve of generally rectangular cross-section;
- providing a first and a second ingate into said cavity;
- flowing a material suitable for use as a tip seal in a scroll compressor into said two ingates;
- and
- causing said flow of material into each of said two ingates to diverge within said cavity such that four different flows of material fill said cavity, two of said flows flowing into each other therein.
2 more elements
Dependencies are inferred from the claim text.