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    • 1. 发明申请
    • EXCAVATING EQUIPMENT
    • 出口设备
    • WO1994019272A1
    • 1994-09-01
    • PCT/US1994001777
    • 1994-02-22
    • HELFGOTT & KARAS, P.C.YITSHAQ, Lipsker
    • HELFGOTT & KARAS, P.C.
    • B66C03/02
    • B66C3/02E02D17/13E02F3/26E02F3/47E02F5/02E02F9/2275E21B4/18E21B7/001
    • Excavating equipment comprising a rigid support structure (1) with surface clamping means (18) articulately mounted thereon; excavating means (2) downstream of the surface clamping means (18) in a direction of excavation; power means (7) coupled to the excavating means (2) for operating same and coupled to the surface clamping means for displacing them against rigid supporting surfaces so as to generate a counter-reaction to forces generated by operation of the excavating means; and equipment displacing means (20) coupled to the support structure for displacing the equipment into and out of an excavation. Alternately, when the equipment is used for excavating in rocky sites, the equipment can comprise a first rigid support structure (1) articulated to the first structure and a second rigid support structure (35) articulated to the first support structure; expansion means for displacing the second rigid structure with respect to the first rigid structure; rotary milling means (34) mounted on the second rigid structure; and power means (36) coupled to the rotary milling cutters for operating same.
    • 挖掘设备包括具有铰接地安装在其上的表面夹紧装置(18)的刚性支撑结构(1) 挖掘装置(2)在表面夹紧装置(18)的下游沿挖掘方向; 与所述挖掘装置(2)联接的动力装置(7),用于操作所述挖掘装置(2)并联接到所述表面夹紧装置,用于将其移动到刚性支撑表面上,以产生与挖掘装置的操作产生的力的反作用力; 以及联接到所述支撑结构的设备移位装置(20),用于将所述设备移入和移出挖掘。 或者,当设备用于在岩石场地挖掘时,设备可以包括铰接到第一结构的第一刚性支撑结构(1)和铰接到第一支撑结构的第二刚性支撑结构(35); 用于相对于第一刚性结构移动第二刚性结构的膨胀装置; 安装在第二刚性结构上的旋转铣削装置(34) 以及联接到所述旋转铣刀的用于操作所述旋转铣刀的动力装置(36)。
    • 3. 发明申请
    • A REMOTELY AUTHORIZED DATA TRANSACTION SYSTEM
    • 远程授权数据交易系统
    • WO1996021314A1
    • 1996-07-11
    • PCT/US1995016920
    • 1995-12-26
    • HELFGOTT & KARAS, P.C.GAZELLE, DavidKANION, Dror
    • HELFGOTT & KARAS, P.C.
    • H04M11/00
    • H04L63/0442H04L63/0823H04L63/083H04L63/0853
    • In a remotely authorized data transaction system (10), a data access device (11) generates an audio signal representative of transaction data corresponding to a transaction to be effected at a remote data transaction terminal, a public key (29) and an access code both characteristic of a particular user desiring access thereto. An access code authentication device (12) receives the audio signal and extracts therefrom the transaction data user's public key (29) and personal access code. An expected personal access code is derived responsive to the user's public key (29) and is compared to the received personal access code for producing a verification signal if they are identical, whereupon the transaction data is routed to the data transaction terminal. The audio signal is encrypted independent of time and so does not require an accurate battery powered internal clock thus avoiding re-synchronization problems when the battery is replaced.
    • 在远程授权的数据交易系统(10)中,数据访问装置(11)生成表示与要在远程数据交易终端进行的交易相对应的交易数据的音频信号,公钥(29)和访问码 特定用户希望访问它们的特征。 访问代码认证设备(12)接收音频信号并从中提取交易数据用户的公共密钥(29)和个人访问代码。 响应于用户的公开密钥(29)导出预期的个人访问代码,并将其与接收到的个人访问代码进行比较以产生验证信号,如果它们相同,则交易数据被路由到数据交易终端。 音频信号是独立于时间加密的,因此不需要精确的电池供电内部时钟,从而避免在更换电池时出现重新同步问题。
    • 9. 发明申请
    • FLUID ACTUATED CHUCK
    • 流体动力卡
    • WO1996029170A1
    • 1996-09-26
    • PCT/US1996003856
    • 1996-03-22
    • HELFGOTT & KARAS, P.C.R.S.R. ADTEC LTD.SHEFFER, Dov
    • HELFGOTT & KARAS, P.C.R.S.R. ADTEC LTD.
    • B23B31/177
    • B23B31/16254B23B31/001
    • This invention discloses a chuck apparatus (10) actuated by a fluid including a body (12), a plurality of master jaws (16) slidably mounted in the body (12), a fluid driven piston (26) mounted for axial motion relative to the body (12) along an axis (25), the piston (26) comprising a plurality of bores (50) extending therethrough along bore axes (52) inclined with respect to the axis (25), and a plurality of shafts (54), each being slidably mounted in one of the plurality of bores (50) and being coupled to one of the master jaws (16), and wherein axial movement of the piston (26) along the axis causes the plurality of shafts (54) to move and to cause the plurality of master jaws (16) to move therewith.
    • 本发明公开了一种由包括主体(12)的流体致动的卡盘装置(10),可滑动地安装在主体(12)中的多个主夹爪(16),流体驱动的活塞(26),其相对于 所述主体(12)沿着轴线(25),所述活塞(26)包括沿着相对于所述轴线(25)倾斜的孔轴线(52)延伸穿过的多个孔(50),以及多个轴 ),每个可滑动地安装在所述多个孔(50)中的一个中并且联接到所述主夹爪(16)中的一个,并且其中所述活塞(26)沿着所述轴线的轴向运动使得所述多个轴(54) 移动并使多个主夹爪(16)随之移动。