发明名称 FLEXIBLE VACUUM LIFTER
摘要 A flexible vacuum lifter which comprises a flexible elongated frame having a deformable resilient gasket secured to peripheral areas of one of the faces of the flexible lifter in order to define an enclosure. In the preferred embodiment of the invention the flexible lifter is backed with a cover sheet having a peripheral skirt that extends beyond the edges of the flexible lifter, with the cover sheet having an opening that permits a lifting frame to be directly secured to the flexible lifter.
申请公布号 US3640562(A) 申请公布日期 1972.02.08
申请号 USD3640562 申请日期 1970.03.17
申请人 VACUUM CONCRETE CORP. OF AMERICA 发明人 JACOB J. CRESKOFF
分类号 B66C1/02;(IPC1-7):F16B47/00 主分类号 B66C1/02
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