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1. 发明授权

US4341393A Hand cart 失效
标题翻译：手推车
公开(公告)号：US4341393A
公开(公告)日：1982-07-27
申请号：US12223
申请日：1979-02-15
申请人： Donald J. Gordon , Frank H. Johnson , George L. Schick , J. David Smart
发明人： Donald J. Gordon , Frank H. Johnson , George L. Schick , J. David Smart
IPC分类号： B62B1/12 , B62B1/18 , B62B1/20 , B62B1/26 , B62B1/02
CPC分类号： B62B1/20 , B62B1/202
摘要： A hand cart comprises a truck and an upwardly open container mounted on the truck. The truck has an elongate frame provided at one end thereof with a handle and at the opposite end thereof with a nose, against which the container abuts with projections on the front of the container engaging in openings at the base of the nose, and a manually actuable clip or the like is provided for releasably securing the rear of the container to the frame. With the container attached to the frame, the cart can be used as a wheelbarrow and, with the container removed, the truck can be used by itself. A detachable nose extension and a detachable bag support are disclosed and the truck can be disassembled for flat packaging.
摘要翻译：手推车包括卡车和安装在卡车上的向上敞开的容器。卡车具有一个细长的框架，其一端设有手柄，并在其相对端设有一个鼻子，容器与容纳物接合在鼻子底部的开口处的容器的前部上的突起抵靠着，手动提供可致动的夹子或类似物可释放地将容器的后部固定在框架上。当容器附接到框架上时，推车可以用作独轮车，并且随着容器被移除，卡车可以自己使用。公开了可拆卸的鼻部延伸部和可拆卸的袋支撑件，并且可以将卡车拆卸以进行平面包装。

2. 发明授权

US5115276A Magnetic brush development apparatus 失效
标题翻译：磁刷开发装置
公开(公告)号：US5115276A
公开(公告)日：1992-05-19
申请号：US755402
申请日：1991-09-05
申请人： Edward T. Miskinis , Frank H. Johnson , Francis M. Paczkowski
发明人： Edward T. Miskinis , Frank H. Johnson , Francis M. Paczkowski
IPC分类号： G03G15/09
CPC分类号： G03G15/09
摘要： A magnetic brush development apparatus for applying pigmented marking particles to a latent image charge pattern on a dielectric member. The magnetic brush development apparatus comprises a housing defining, in a portion thereof, a sump for containing a mixture of magnetic carrier particles and pigmented marking particles. A mixer is located in the sump of the housing for mixing magnetic carrier particles and pigmented marking particles so as to effect a triboelectric attraction of the pigmented marking particles to the magnetic carrier particles. The mixed magnetic carrier particles and attracted pigmented marking particles are attracted to an intermediate member, transported by the intermediate member from the sump, and then separated by the intermediate member such that the magnetic carrier particles are returned to the sump. A magnetic brush development roller including a magnetic core and a shell rotatable relative to one another, has the shell coated with a prescribed layer of magnetic carrier particles and an electrical bias applied to the shell. The marking particles are attracted from the intermediate member to the magnetic brush and then transferred to a latent image charge pattern on the dielectric member to develop such pattern.
摘要翻译：一种用于将着色标记颗粒施加到电介质构件上的潜像电荷图案的磁刷显影装置。磁刷显影装置包括在其一部分中限定用于容纳磁性载体颗粒和着色标记颗粒的混合物的贮槽的壳体。混合器位于壳体的贮槽中，用于混合磁性载体颗粒和着色标记颗粒，以使着色标记颗粒对磁性载体颗粒进行摩擦吸引。混合的磁性载体颗粒和吸引的着色标记颗粒被吸引到中间构件，由中间构件从贮槽输送，然后由中间构件分离，使得磁性载体颗粒返回到贮槽。一种包括磁芯和可相对旋转的壳体的磁刷显影辊具有涂覆有规定层的磁性载体颗粒的壳体和施加到壳体上的电偏压。标记颗粒从中间构件被吸引到磁刷，然后转移到电介质构件上的潜像电荷图案以形成这种图案。

3. 外观设计

USD261125S Hand cart 失效
公开(公告)号：USD261125S
公开(公告)日：1981-10-06
申请号：US11371
申请日：1979-02-12
申请人： Donald J. Gordon , Frank H. Johnson , George L. Schick , J. David Smart
设计人： Donald J. Gordon , Frank H. Johnson , George L. Schick , J. David Smart

4. 发明授权

US3618099A Miss distance determining hyperbolic system 失效
标题翻译：超短距离测距系统
公开(公告)号：US3618099A
公开(公告)日：1971-11-02
申请号：US3618099D
申请日：1969-11-28
申请人： FRANK H JOHNSON
发明人： JOHNSON FRANK H
IPC分类号： G01S11/02 , G01S19/48 , G01S1/04
CPC分类号： G01S11/02
摘要： To determine continuously the minimum distance by which a first moving vehicle will travel past a second moving vehicle, there is transmitted from said second vehicle four frequencies, f1, f2, f3 and f4, which provide in space two sets of moving isophases which alternate direction of travel. A receiver at said first vehicle having three spaded antennas measures the velocity of the isophases as they sweep past said antennas by a phase comparison of the signals received at each antenna. The sum of the measured velocities corresponding to the alternating isophases and the measured velocity of the other isophases are coupled to a computer which determines therefrom the minimum miss distance.

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