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1.Independently operable press brakes having tandem coupling means 失效
Title translation: 独立操作的具有串联联接装置的压力机制动器公开(公告)号:US3393635A
公开(公告)日:1968-07-23
申请号:US57514666
申请日:1966-08-25
Applicant: PACIFIC PRESS & SHEAR CORP
Inventor: RICHARDSON ROLLAND A
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公开(公告)号:US3524384A
公开(公告)日:1970-08-18
申请号:US3524384D
申请日:1968-04-10
Applicant: PACIFIC PRESS & SHEAR CORP
Inventor: RICHARDSON ROLLAND A
CPC classification number: B30B15/20 , B30B15/166 , B30B15/18 , F15B21/087
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公开(公告)号:US3371569A
公开(公告)日:1968-03-05
申请号:US46721065
申请日:1965-06-28
Applicant: PACIFIC PRESS & SHEAR CORP
Inventor: PEARSON EUGENE W , RICHARDSON ROLLAND A
CPC classification number: B23D15/14 , B23D15/08 , B23D35/005 , Y10T83/8776 , Y10T83/8853 , Y10T83/8864 , Y10T83/8867
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4.Temperature compensated control means for press brakes and the like 失效
Title translation: 用于压制机等的温度补偿控制装置公开(公告)号:US3323401A
公开(公告)日:1967-06-06
申请号:US49342765
申请日:1965-10-06
Applicant: PACIFIC PRESS & SHEAR CORP
Inventor: PEARSON EUGENE W , RICHARDSON ROLLAND A
CPC classification number: B30B15/24 , B30B15/14 , Y10T83/8854 , Y10T83/8867
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公开(公告)号:US3659498A
公开(公告)日:1972-05-02
申请号:US3659498D
申请日:1970-08-13
Applicant: PACIFIC PRESS & SHEAR CORP
Inventor: RICHARDSON ROLLAND A
CPC classification number: F15B13/022 , B23D15/14 , B30B15/24 , F15B11/16 , F15B11/22 , F15B2211/20576 , F15B2211/40515 , F15B2211/41563 , F15B2211/428 , F15B2211/45 , F15B2211/50518 , F15B2211/50554 , F15B2211/50563 , F15B2211/5151 , F15B2211/5153 , F15B2211/526 , F15B2211/528 , F15B2211/55 , F15B2211/57 , F15B2211/7142 , F15B2211/75
Abstract: The ram attitude system of U.S. Pat. No. 3,349,669 of Oct. 31, 1967 is made less critical as to adjustments by incorporating a novel valve assembly for each of the two pumps, the valve assembly associated with the pump supplying the leading hydraulic motor, causing a continuously increasing by-pass of said hydraulic motor with deviation of the ram of a machine, to set up corresponding corrective forces in a non-proportional manner but with no sharp changes in such corrective forces.
Abstract translation: 美国专利制度 1967年10月31日的第3,349,669号对于通过为两个泵中的每个泵并入新颖的阀组件而进行调整的关键性不太关键,阀组件与提供前导液压马达的泵相关联,导致连续增加的旁路 所述液压马达具有机器的冲头的偏差,以非比例的方式设置相应的校正力,但是没有这种校正力的急剧变化。
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公开(公告)号:US3464320A
公开(公告)日:1969-09-02
申请号:US3464320D
申请日:1967-05-16
Applicant: PACIFIC PRESS & SHEAR CORP
Inventor: RICHARDSON ROLLAND A
CPC classification number: B30B15/24 , B30B15/16 , B30B15/186 , F15B11/044 , F15B2211/20538 , F15B2211/3059 , F15B2211/50518 , F15B2211/50536 , F15B2211/5151 , F15B2211/528 , F15B2211/55 , F15B2211/575 , F15B2211/615 , F15B2211/7053 , F15B2211/71
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