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    • 2. 发明申请
    • Expandable portfolio
    • 可扩展组合
    • US20070235506A1
    • 2007-10-11
    • US11391742
    • 2006-03-29
    • David Shapiro
    • David Shapiro
    • B65D27/00B65D37/00B65D27/04
    • B42F7/08B42P2221/04B42P2241/04
    • A portable accordion file organizer including rectangular front and back panels, accordion walls connecting opposite sides and the bottom of the front and back panels, and N sequential divider panels Pn secured to the accordion walls between the front and back panels. Each divider panel has a height greater than the height of the divider panel in front of it and less than the height of the divider panel behind it. The divider panels also each have a cutout section in its top edge wherein the cutout sections of adjacent divider panels are laterally spaced from one another on alternating sides of the center of the divider panel, and have a height which is substantially at least the difference in the height of adjacent divider panels.
    • 一种便携式手风琴文件管理器,包括矩形前后面板,连接相对侧的手风琴壁和前后面板的底部,以及N个连续的分隔板P& 后面板。 每个分隔板的高度大于其前面的分隔板的高度,并且小于其后面的分隔板的高度。 分隔板还在其顶部边缘中具有切口部分,其中相邻分隔板的切口部分在分隔板的中心的交替侧面上彼此横向间隔开,并且具有至少基本上至少不同的高度 相邻隔板的高度。
    • 4. 发明授权
    • Calculator for evaluating numerical answers to problems
    • 用于评估问题数值解答的计算器
    • US4309761A
    • 1982-01-05
    • US60950
    • 1979-07-26
    • Roy W. ReachWilliam M. KahnDavid Shapiro
    • Roy W. ReachWilliam M. KahnDavid Shapiro
    • G06F15/02G06F17/10G06F3/023
    • G06F17/10G06F15/02
    • A programmable electronic calculator for numerical evaluation of mathematical problems operates through the application of one or more basic mathematical operators, properly grouped, to each input numerical operand of a mathematical problem according to the accepted rules of mathematical combinations. One may select any numerical operand, any of the four basic arithmetic operators, left parenthesis and right parenthesis to denote groupings, a storage register for receiving a numerical operand to be used in computation or a numerical operand representing a result of a partial or final computation, or a storage register whose contents it is desired to print. Entry of each numerical operand and mathematical operator is accompanied by a printed record of that numerical operand and that mathematical operator so that the mathematical problem may be continually monitored as it is being entered. Depression of an equals key is followed by evaluation of previously designated operations and printing of the result. Selection of a left (or opening) parenthesis causes the contents of first and second accumulator registers in an arithmetic unit to shift to third and fourth accumulator registers in the arithmetic unit respectively. Selection of a right (or closing) parenthesis causes the shifting and combining of previously stored numerical operands to produce the result of the arithmetic combination embraced within a sequence denoted by a mating left parenthesis. One may select a learn mode in which steps are entered in a learn memory by working out a mathematical problem, each selected operation corresponding to a step in the learn memory. Thereafter, one may select an automatic computation mode to cause the operations previously stored in the learn memory to be carried out in sequence until a desired result is obtained or a predetermined point in the program stored in learn memory is reached.
    • 用于数学问题数值评估的可编程电子计算器通过根据公认的数学组合规则,将一个或多个基本数学运算符应用于数学问题的每个输入数值操作数,进行适当分组。 可以选择任何数值操作数,四个基本算术运算符,左括号和右括号中的任一个表示分组,用于接收要用于计算的数字操作数的存储寄存器或表示部分或最终计算结果的数值操作数 ,或其内容需要打印的存储寄存器。 每个数字操作数和数学运算符的输入都伴随着该数值操作数和数学运算符的打印记录,以便数学问题可以在输入时连续监视。 对等号键的抑制之后是先前指定的操作的评估和结果的打印。 选择左(或开)括号会使算术单元中的第一和第二累加器寄存器的内容分别转移到算术单元中的第三和第四累加器寄存器。 选择右(或关闭)括号会导致先前存储的数字操作数的移位和组合,以产生包含在由左对齐的左括号表示的序列中的算术组合的结果。 人们可以通过计算数学问题来选择学习模式,其中步骤被输入到学习存储器中,每个所选择的操作对应于学习存储器中的步骤。 此后,可以选择自动计算模式以使得先前存储在学习存储器中的操作按顺序执行,直到获得期望的结果或达到存储在学习存储器中的程序中的预定点。
    • 9. 发明申请
    • Differential transmission system
    • 差速传动系统
    • US20070155576A1
    • 2007-07-05
    • US11325565
    • 2006-01-05
    • David Shapiro
    • David Shapiro
    • F16H48/06
    • B60K17/16B60K17/22F16H48/08F16H48/11
    • A differential transmission system including: a first-differential; and a second-differential, wherein the first and second differentials are coupled in series such that the output of the first-differential serves as input to the second-differential. In a first embodiment, power is transmitted from the first-differential to the second-differential by means of a first first-differential output gear and a second first-differential output gear respectively coupled to a first second-differential input gear and a second second-differential input gear. In a second embodiment, power is transmitted from the first-differential to the second-differential by means of a pulley and belt system. In a third embodiment, power is transmitted from the first-differential to the second-differential by means of a sprocket and chain system.
    • 一种差动传动系统,包括:第一差速器; 和第二差分器,其中所述第一和第二差动器串联耦合,使得所述第一差分器的输出用作所述第二差分器的输入。 在第一实施例中,通过分别耦合到第一第二差分输入齿轮和第二第二差动输入齿轮的第一第一差分输出齿轮和第二第一差分输出齿轮将功率从第一差速器传输到第二差速器, 差速输入齿轮 在第二实施例中,通过皮带轮和皮带系统将动力从第一差速器传递到第二差速器。 在第三实施例中,动力通过链轮和链条系统从第一差速器传递到第二差速器。