Matthew EVES;Eva NG;Mark BERTINETTI;Murray William LEE;Joshua Adam GUDIKSEN;Vincent CHU;Susan Robyn LYNCH;Scott Alexander HOWARD;Philip Thomas STALLARD;Shiva Kumar SHANMUGA SUNDARA
发明人:
Vincent CHU,Mark BERTINETTI,Joshua Adam GUDIKSEN,Scott Alexander HOWARD,Susan Robyn LYNCH,Eva NG,Philip Thomas STALLARD,Murray William LEE,Shiva Kumar SHANMUGA SUNDARA,Matthew EVES
申请号：
US13350475
公开号：
US20120103340A1
申请日:
2012.01.13
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A forehead support for a mask assembly includes a frame connector provided to a mask frame, a forehead cushion support movably mounted to the frame connector for generally linear movement between retracted and extended positions with respect to the frame connector, and an adjustment knob movably mounted to the frame connector and threadably engaged with the forehead cushion support such that turning movement of the adjustment knob causes the forehead cushion support to be moved between the retracted and extended positions. The adjustment knob includes a resilient prong having a ratchet bump. The ratchet bump is adapted to selectively engage a series of ridges provided to the frame connector to provide indexed incremental adjustment.
