发明名称 TILLAEGGSANORDNING FOER LOCKSYSTEM, SAOSOM BRUNNSLOCK.
摘要 The present invention concerns additional equipment for a cover system, such as a well cover, which cover system comprises a frame 13 which is fitted into the upper part of walls 11 forming the well space proper, or similar space 12, and a closed over-cover 14 fitted with at least one hole for a lifting hook 16 or similar use, which cover 14 being located on a shoulder 15 situated in frame 13, and which additional equipment comprises a closed additional cover 21 situated beneath the over-cover. In order to eliminate problems caused by leakage of water which can enter the well space through hole 16, the additional cover 21 is fitted with a suspension piece 22 by means of which it can be suspended on the shoulder 15 provided for the frame's 13 over-cover 14. <IMAGE>
申请公布号 FI910681(A) 申请公布日期 1992.08.13
申请号 FI19910000681 申请日期 1991.02.12
申请人 SVK JAEAETYMISSUOJA OY 发明人 ARMANTO, HEIKKI
分类号 E02D;E02D29/14;E03F5/02;(IPC1-7):E02D/ 主分类号 E02D
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