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11. 发明专利

JP2000088191A METHOD OF AND DEVICE FOR RECOVERING LIQUEFIED GAS 失效
公开(公告)号：JP2000088191A
公开(公告)日：2000-03-31
申请号：JP26330698
申请日：1998-09-17
申请人： HITACHI LTD , HITACHI SANSO KK
发明人： FUJIWARA FUKUO , WATANABE SHINJI , SONOBE KOJI , ABE YOSHINOBU
IPC分类号： F17C6/00
摘要： PROBLEM TO BE SOLVED: To quicken recovering work for liquefied gas by setting a vertical head between residual gas filled and gas recovering cylinders by utilizing a rotating mount, and cooling the gas recovering cylinder to set a temperature difference relative to the residual gas filled cylinder. SOLUTION: In a recovering method for liquefied gas for recovering a residual liquefied gas in a first vessel 1 to a second vessel 11, the openings of the vessels 1 and 11 are connected by a piping 21 to exhaust the piping by a vacuum pump 24, and also the vessel 1 is arranged in the upper part of the vessel 11 in a condition where the opening of the vessel 1 is made downward, the vessel 11 is cooled to recover the residual liquefied gas in its liquid condition to the vessel 11 from the vessel 1.

12. 发明专利

JPH1086071A FASTENING TOOL 失效
公开(公告)号：JPH1086071A
公开(公告)日：1998-04-07
申请号：JP24159796
申请日：1996-09-12
申请人： HITACHI LTD
发明人： FUJIWARA FUKUO , HISHINUMA MASAO
IPC分类号： B25B13/06
摘要： PROBLEM TO BE SOLVED: To remove foreign materials simultaneously with a bolt fastening action and prevent the foreign materials from being left in a container by providing a cleaning mechanism which sucks and removes the foreign materials, in a bolt fastening tool beforehand. SOLUTION: A bolt fastening tool 1 is provided with a cover part 2 for covering a bolt fastening part and a hose 3 connected to the cover part 2, and the hose 3 is connected to a vacuum cleaner 4 which becomes a suction source of foreign materials. When a bolt is fastened, the vacuum cleaner 4 is operated beforehand and the foreign materials produced inside the cover part 2 are sucked and removed simultaneously with the production, till the completion of fastening the bolt. This constitution can clean and remove the foreign materials produced from the bolt fastening part without omission and improve the reliability of a gas blast circuit breaker.

13. 发明专利

JPH06304767A MEMBER HOLDING DEVICE FOR FRICTION WELDING MACHINE 失效
公开(公告)号：JPH06304767A
公开(公告)日：1994-11-01
申请号：JP9575093
申请日：1993-04-22
申请人： HITACHI LTD , HITACHI SETSUBI ENG KK
发明人： SUZUKI HIDEO , FUKUDA SHINJI , YOSHIIKE KIYOMASA , MATSUSHIMA OSAMU , HASHIURA MASAYOSHI , FUJIWARA FUKUO , TAKEUCHI SHIGETAKA
IPC分类号： B23K20/12
摘要： PURPOSE:To prevent deformation of a member by the check pressure by fitting a rotation side member to hold the member outer periphery by a check claw, carrying out alignment and fixing the opposite surface of the member press- contact surface by a pin on a check face plate of a rotary head. CONSTITUTION:A pin hole of the member A is fitted on a pin 6 of setting material 5 to set it. The member A is held by the check claw 4 provided on the check face plate 2 on the tip of a rotation axis 1. The check claw 4 is fitted on a guide 3 of the check surface 2, the member A is held and centering is completed at the same time. Since the rotational force of a rotating check face plate 21 is transmitted to the member A via the pin 6, a slip is not generated between the check claw 4 and the member A and a flaw on the surface of the member A can be prevented. Since this is not a cap stopper type, the setup time can be reduced and productive efficiency is satisfactory.

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