发明名称 Sealable collar vacuum cleaner bag
摘要 Air leakage passageways formed by an elongated sealing finger deflected through a sealable collar of a vacuum cleaner bag are substantially eliminated by the use of straddling tabs or an additonal elastic membrane across the collar opening which assure a total seal between the collar opening and the vacuum cleaner inlet fitting when the latter extends through the opening.
申请公布号 US5039324(A) 申请公布日期 1991.08.13
申请号 US19900566858 申请日期 1990.08.10
申请人 MASTERCRAFT INDUSTRIES, INC. 发明人 GOLDBERG, HOWARD
分类号 A47L9/14 主分类号 A47L9/14
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