| 摘要 |
Improved valve for cushions, of the type including a nipple threadable on a tubular body, the nipple showing a diaphragm or choking disc of an existing seat or toric joint on the end of the tube, the disc being joined to the nipple by a series of brackets separated from each other by windows, characterized because the nipple has an entering stepped surrounding up to the upper part where a rotary skirt is lodged with a truncated cone or cylindrical shape, supported by an inner rib in the part of the skirt and is lodged in an existing crack at the bottom of the stepped existing at the nipple.
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