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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0529359 (1995-09-18) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 83 인용 특허 : 13 |
Valves useful for pressure relief/ventilation/vacuum or pressure retention, particularly in packaging containers, are disclosed. The present valves include a first member which is substantially rigid, includes an outer sealing region and a raised section having at least one hole therethrough; and a
A valve comprising: a first member which is substantially rigid, includes an outer sealing region and a raised section having an area of highest elevation and at least one hole therethrough and being spaced apart from said outer sealing region; a second member which is substantially elastic, is in c
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