Patent ID: 9474584
Filing Date: 2016-10-25
CPC Classification: A61C

Claim Text:
1. A dental instrument servicing system, comprising: a holder having a passage extending from a first opening to a second opening that is smaller than the first opening, the first and second openings being sized to receive portions of a cushion; and a cushion having a first portion received within the passage, a second portion extending from the first portion through and beyond the second opening, a third portion extending from the first portion opposite the second portion outside the passage of the holder beyond the first opening, first and second spaced-apart surfaces, and a peripheral surface extending between the first and second surfaces, the peripheral surface including opposing sides generally tapering from the third portion to the second portion, the cushion having a discontinuous neck when the cushion is uncompressed, the neck adjacent a transition from the first portion to the second portion; and wherein the peripheral surface includes opposing ridges extending transversely to the first and second surfaces, outside the passage adjacent the second opening of the holder when the first portion of the cushion is received within the passage with the second portion of the cushion extending beyond the second opening, the ridges not extending across the first and second surfaces, wherein the second portion of the cushion extending beyond the second opening is of a larger size than the second opening.