公开(公告)号：US4852479A

公开(公告)日：1989-08-01

申请号：US129638

申请日：1987-12-07

申请人： David W. Hubbard

发明人： David W. Hubbard

IPC分类号： G07B17/00

CPC分类号： G07B17/00508 ,  G07B2017/00548 ,  Y10T74/18328 ,  Y10T74/18624 ,  Y10T74/19833

摘要： This invention relates to a postage meter having a plurality of worm gears for adjusting the rotational position of postage print wheels. Each worm gear selectively moves a rack which is an engagement with a postage print wheel so as to provide rotational movement to the print wheel. Sensors are provided so that the rotational position of each worm gear can be determined thereby indicating the position of the print wheels.

摘要翻译： 本发明涉及一种具有多个用于调整邮票打印轮的旋转位置的蜗轮的邮资计费器。 每个蜗轮选择性地移动与邮资打印轮接合的齿条，以便向打印轮提供旋转运动。 设置传感器，使得可以确定每个蜗轮的旋转位置，从而指示打印轮的位置。

公开(公告)号：US4778018A

公开(公告)日：1988-10-18

申请号：US73790

申请日：1987-07-13

申请人： Robert A. Cordery ,  William G. Hart ,  David W. Hubbard ,  Morton Silverberg

发明人： Robert A. Cordery ,  William G. Hart ,  David W. Hubbard ,  Morton Silverberg

IPC分类号： G01G3/16 ,  G01G11/00 ,  G01G19/00 ,  G01G3/14 ,  G01G23/02 ,  G01G23/10

CPC分类号： G01G19/005 ,  G01G3/16

摘要： Apparatus and method of determining the mass of an article by the shift of the period of oscillation of a flexibly mounted platform. An article whose mass is to be determined is placed upon the platform. The platform is caused to oscillate and the period of harmonic motion is calibrated. This period is compared against the period of harmonic motion when there is no article upon the platform, and the difference, or shift, in frequency, allows a determination of the mass of the article.

摘要翻译： 通过灵活安装的平台的振荡周期的移动来确定物品的质量的装置和方法。 将要确定其质量的物品放在平台上。 使平台振荡，谐波运动的周期被校准。 这个时期与平台上没有物品的谐波运动时期进行比较，频率的差异或偏移允许确定物品的质量。

公开(公告)号：US4680595A

公开(公告)日：1987-07-14

申请号：US795584

申请日：1985-11-06

申请人： Antonio S. Cruz-Uribe ,  David W. Hubbard ,  Gopalan Raman

发明人： Antonio S. Cruz-Uribe ,  David W. Hubbard ,  Gopalan Raman

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  G01D15/16

CPC分类号： B41J2/14233 ,  B41J2002/14387 ,  B41J2002/14419

摘要： An impulse ink jet print head and method of fabricating same. The print head comprises a plurality of superposed, contiguous plates including a nozzle plate with at least a pair of nozzles for ejecting ink droplets in a direction perpendicular to a plane of the plates. Another plate is a channel plate defining at least a pair of coplanar axially aligned elongated chambers, each connected to an ink supply and having an outlet communicating with an associated nozzle. A diaphragm plate overlies the channel plate and has transducers thereon for displacing ink in each of the chambers to eject discrete ink droplets from the nozzles. Other plates may include a manifold plate for directing ink to a plurality of pairs of chambers and a restrictor plate with restictor orifices positioned between the manifold plate and each of the chambers. The method of fabricating the print head includes forming the different plates, forming the transducers, and assembling all of the components in a particular relationship.

摘要翻译： 脉冲喷墨打印头及其制造方法。 打印头包括多个重叠的连续板，其包括具有至少一对喷嘴的喷嘴板，喷嘴板沿垂直于板平面的方向喷射墨滴。 另一个板是限定至少一对共面轴向对准的细长室的通道板，每个细长室连接到供墨装置并具有与相关喷嘴连通的出口。 隔膜板覆盖在通道板上并且在其上具有用于移动每个室中的墨的换能器，以从喷嘴喷射离散的墨滴。 其他板可以包括用于将油墨引导到多对室的歧管板和具有定位在歧管板和每个室之间的再生孔的限流板。 制造打印头的方法包括形成不同的板，形成换能器，并以特定的关系组装所有的部件。

公开(公告)号：US4411328A

公开(公告)日：1983-10-25

申请号：US361310

申请日：1982-03-24

申请人： David W. Hubbard

发明人： David W. Hubbard

IPC分类号： G01G1/29

CPC分类号： G01G1/29

摘要： A weighing device is disclosed which comprises a frame, a pan element for supporting a load to be weighed, a channel member connected to the pan for retaining a plurality of weight elements in a vertically movable manner, a motor supported within the frame and a shaft member operatively connected to and extending from the motor, the shaft member including a spring for supporting the pan element. A plurality of collapsible support members are secured at one end thereof to the frame and each have at their opposite ends a device that is adapted to receive and lift one of the weight elements when the support member is in an extended and non-collapsed position. A camming arm is secured to the shaft member and extends in a direction toward the support members. A switch is provided for energizing the motor when the pan is depressed by a load. The motor turns the shaft member and guides the camming arm into contact with successive collapsed support members in a step-by-step manner to place a number of the support members in an extended position and lift a corresponding number of the weights substantially equal to the weight of the load.

摘要翻译： 公开了一种称重装置，其包括框架，用于支撑待称重负载的盘元件，连接到盘的通道构件，用于以可垂直移动的方式保持多个重量元件，支撑在框架内的马达和轴 构件可操作地连接到电动机并从电动机延伸，所述轴构件包括用于支撑盘元件的弹簧。 多个可折叠的支撑构件在其一端固定到框架，并且每个在其相对端处具有适于在支撑构件处于延伸和非收缩位置时接收和提升其中一个配重元件的装置。 凸轮臂固定在轴构件上并朝向支撑构件的方向延伸。 提供了一个开关，用于在锅被负载压下时使电动机通电。 电动机转动轴构件并且引导凸轮臂与连续的倒塌的支撑构件以一步一步的方式接触，以将多个支撑构件放置在延伸位置，并将相应数量的重量提升到基本等于 负载重量。