公开(公告)号：US4074927A

公开(公告)日：1978-02-21

申请号：US708477

申请日：1976-07-26

Applicant: David J. Ball

Inventor： David J. Ball

IPC: H01R13/639 ,  H01R13/187 ,  H01R13/424 ,  H01R13/622 ,  H01R13/629 ,  H01R13/64 ,  H01R13/658 ,  H01R13/6583 ,  H01R13/54

CPC classification number: H01R13/424 ,  H01R13/187 ,  H01R13/622 ,  H01R13/629 ,  H01R13/64 ,  H01R13/6583

Abstract: An electrical connector having cooperable mating and unmating plug and receptacle means carrying a dielectric insert member within a cylindrical shell and having an insert member compressible retainer ring for immovably axially holding an insert member against a positioning shoulder within the shell.

Abstract translation: 一种电连接器，其具有可配合的配合和拆卸插头和插座装置，其在圆柱形壳体内承载电介质插入件，并具有用于不可移动地将插入件轴向保持在壳体内的定位肩部的可压缩保持环。

公开(公告)号：US4508407A

公开(公告)日：1985-04-02

申请号：US446120

申请日：1982-12-02

Applicant: David J. Ball

Inventor： David J. Ball

IPC: H01R13/622 ,  H01R13/627

CPC classification number: H01R13/622 ,  H01R13/627

Abstract: A self-locking connector in which balls carried by a connector shell are spring biased toward a locking ring which is rotatable with the coupling nut of the connector. The ring is formed with a circular array of detent recesses with which the balls engage when the coupling nut is rotated. The balls and recesses are arranged so that only one ball engages a recess at any instant so that there are a large number of locking positions for the coupling nut.

Abstract translation: 一个自锁连接器，其中由连接器壳承载的球弹簧偏压朝向可与连接器的联接螺母旋转的锁定环。 环形成有圆形的止动凹槽阵列，当联接螺母旋转时，该凹槽与球接合。 球和凹槽被布置成使得只有一个球在任何时刻接合凹部，使得联接螺母存在大量的锁定位置。

公开(公告)号：US4458220A

公开(公告)日：1984-07-03

申请号：US284187

申请日：1981-07-17

Applicant: Paul Carter ,  David J. Ball

Inventor： Paul Carter ,  David J. Ball

IPC: H01R13/7197 ,  H03H7/01 ,  H01R23/08

CPC classification number: H01R13/7197

Abstract: A plug and receptacle electrical connector has incorporated within one of its parts an insulative enclosure maintaining the pin or sockets contacts, as the case may be, in an electrically insulated relation, which enclosure also has cavities formed about each of the pin contacts for receiving inductors and/or one or more specially formed capacitors therein.Each inductor is an elongated hollow cylinder formed of a magnetic material (e.g., sintered ferrite), one such inductor being received within a member cavity and the pin (or socket) contacts on being assembled in the connector part extending through the respective inductor openings. A capacitor consists of an insulative cylinder with an axial opening therethrough and has select portions coated with first and second electrically conductive film electrodes. One film electrode provides interconnection between adjacent capacitors when they are stacked within the receiving cavities and with springlike contacts which interconnect one terminal of the capacitor/s to an electrically conductive ground shell. The other terminal of each capacitor is connected to a pin or socket contact, as the case may be.

Abstract translation: 插头和插座电连接器在其部分的一个部分内并入一个绝缘外壳，其保持销或插座接触（视情况而定）为电绝缘的关系，该外壳还具有围绕每个引脚触头形成的腔，用于接收电感器 和/或一个或多个特殊形成的电容器。 每个电感器是由磁性材料（例如，烧结铁氧体）形成的细长中空圆柱体，一个这样的电感器被容纳在构件空腔内，并且销（或插座）在组装在延伸穿过各个电感器开口的连接器部件中接触。 电容器由具有穿过其中的轴向开口的绝缘筒组成，并且具有涂覆有第一和第二导电膜电极的选择部分。 一个膜电极在相邻的电容器堆叠在接收腔内时提供互连，并且具有将电容器的一个端子与导电的接地壳相互连接的弹性接触。 每个电容器的另一个端子连接到引脚或插座触点，视情况而定。

公开(公告)号：US4915623A

公开(公告)日：1990-04-10

申请号：US317179

申请日：1989-02-28

Applicant: David J. Ball ,  Edward Varney ,  Philip Curtis ,  Martin Dzidrums

Inventor： David J. Ball ,  Edward Varney ,  Philip Curtis ,  Martin Dzidrums

IPC: B01J6/00 ,  C04B11/02 ,  C04B11/028

CPC classification number: B01J6/001 ,  C04B11/0281

Abstract: The invention concerns an improved method of calcining gypsum in which non-reactive hot gas is passed into contact with the gypsum from a source through a plurality of tubes extending downwardly into the gypsum. The invention also contemplates an improved apparatus which comprises a calcining kettle and a plurality of tubes connected to a common source of non-reactive hot gas and extending downwardly into the kettle and having openings in their lower regions to release the hot gas into the contents of the kettle. The invention provides a method and apparatus which produces gypsum plaster of improved quality and with less insoluble anhydrite.

公开(公告)号：USRE31995E

公开(公告)日：1985-10-01

申请号：US571918

申请日：1984-01-19

Applicant: David J. Ball

Inventor： David J. Ball

IPC: H01R13/187 ,  H01R13/622 ,  H01R13/631 ,  H01R13/64 ,  H01R13/641

CPC classification number: H01R13/622 ,  H01R13/187 ,  H01R13/631 ,  H01R13/64 ,  H01R13/641

Abstract: An electrical connector having a receptacle including a receptacle shell and a plug including a plug housing, a coupling nut threaded on the plug housing and engaged with a coupling ring, the coupling nut having threaded engagement with the plug housing and the coupling ring having locking flanges engageable with cooperable locking lands on the receptacle shell, the plug and receptacle being adapted to be fully electrically mated and locked by rotation of the coupling ring through about 90 degrees. An arcuate detent member subtending an angle of about 180 degrees is keyed to the plug housing for relative axial movement of the plug housing, and is received within an annular groove in the coupling ring for resilient forcible selective engagement of opposite radially outwardly enlarged ends of the arcuate detent member with two sets of radially outwardly formed recesses in the coupling ring. When the coupling ring is rotated to the fully locked position of the plug and receptacle means, the ends of the arcuate member are forcibly snapped into one set of recesses to indicate attainment of the locked and fully mated position by sound and by feel. Rotation of the coupling ring in the opposite direction unlocks the plug and receptacle and the enlarged ends of the detent member are released from the first set of recesses to engage a second set of recesses in the coupling ring to audibly and tactilely indicate attainment of the unlocked position. The resilient arcuate member comprises an enlarged center portion forming a key which is designated to mate with and ride in a keyway on the plug housing with an enlarged portion of the keyway defining a dog-leg in the path of the axial travel of the plug housing. The key .[.makes audible contact with a terminal wall of the dog leg.]. .Iadd.momentarily moves out of contact with the plug housing on the key entering the dog-leg .Iaddend.producing an intensified audible snap .Iadd.of the arcuate detent member into the coupling ring recesses .Iaddend.when the fully mated and locked position of the connector is attained.

公开(公告)号：US4277125A

公开(公告)日：1981-07-07

申请号：US57134

申请日：1979-07-12

Applicant: David J. Ball

Inventor： David J. Ball

IPC: H01R13/639 ,  H01R13/187 ,  H01R13/622 ,  H01R13/631 ,  H01R13/64 ,  H01R13/641

CPC classification number: H01R13/622 ,  H01R13/187 ,  H01R13/631 ,  H01R13/64 ,  H01R13/641

Abstract: An electrical connector having a receptacle including a receptacle shell and a plug including a plug housing, a coupling nut threaded on the plug housing and engaged with a coupling ring, the coupling nut having threaded engagement with the plug housing and the coupling ring having locking flanges engageable with cooperable locking lands on the receptacle shell, the plug and receptacle being adapted to be fully electrically mated and locked by rotation of the coupling ring through about 90 degrees. An arcuate detent member subtending an angle of about 180 degrees is keyed to the plug housing for relative axial movement of the plug housing, and is received within an annular groove in the coupling ring for resilient forcible selective engagement of opposite radially outwardly enlarged ends of the arcuate detent member with two sets of radially outwardly formed recesses in the coupling ring. When the coupling ring is rotated to the fully locked position of the plug and receptacle means, the ends of the arcuate member are forcibly snapped into one set of recesses to indicate attainment of the locked and fully mated position by sound and by feel. Rotation of the coupling ring in the opposite direction unlocks the plug and receptacle and the enlarged ends of the detent member are released from the first set of recesses to engage a second set of recesses in the coupling ring to audibly and tactilely indicate attainment of the unlocked position. The resilient arcuate member comprises an enlarged center portion forming a key which is designated to mate with and ride in a keyway on the plug housing with an enlarged portion of the keyway defining a dog-leg in the path of the axial travel of the plug housing. The key makes audible contact with a terminal wall of the dog leg producing an intensified audible snap when the fully mated and locked position of the connector is attained.

Abstract translation: 一种具有插座的电连接器，包括插座壳体和插头，插头包括插头壳体，螺纹连接在插头壳体上并与联接环接合的联接螺母，联接螺母与插头壳体螺纹接合，并且联接环具有锁定凸缘 可与插座壳体上的可配合的锁定平台接合，插头和插座适于通过约90度的联接环的旋转而被完全电配合和锁定。 对角180度角的弓形棘爪构件与插头壳体相关联，用于插头壳体的相对轴向运动，并且被接纳在联接环中的环形槽内，用于弹性强制选择性地接合相对的径向向外扩大的端部 弓形止动构件，在联接环中具有两组径向向外形成的凹槽。 当联接环旋转到插头和插座装置的完全锁定位置时，弓形构件的端部被强制地卡扣成一组凹部，以通过声音和感觉来指示锁定和完全匹配的位置。 联接环沿相反方向的旋转解锁插头和插座，并且止动构件的扩大的端部从第一组凹部释放，以接合联接环中的第二组凹部，以可听见和触觉地指示达到解锁 位置。 弹性弓形构件包括形成钥匙的扩大的中心部分，该钥匙被指定为与插头壳体上的键槽配合并且骑在插头壳体上的键槽中，其中键槽的扩大部分在插头壳体的轴向移动的路径中限定狗腿 。 当达到连接器的完全配合和锁定位置时，该钥匙与狗腿的终端壁发生可听见的接触，产生强化的听觉卡扣。

公开(公告)号：US5580002A

公开(公告)日：1996-12-03

申请号：US295001

申请日：1994-08-24

Applicant: Arthur G. T. Ward ,  David J. Ball ,  Philip Curtis ,  Edward Varney

Inventor： Arthur G. T. Ward ,  David J. Ball ,  Philip Curtis ,  Edward Varney

IPC: B02C15/04 ,  B01J6/00 ,  B02C15/00 ,  B02C23/06 ,  B02C23/24 ,  C04B7/45 ,  C04B11/028 ,  C04B11/036 ,  F27B15/00 ,  F27D3/00 ,  B02C23/32

CPC classification number: B02C15/00 ,  C04B11/0283 ,  F27B15/00 ,  F27D2003/0071

Abstract: Hot gas is introduced into a fluidised bed of granular material, for example gypsum, contained in a vessel 10 having a grinding device or mill 11 in its lower region, which may comprise grinding rollers 15 cooperating with a table 17 on the base of the vessel. The gas may be supplied through a tube 20 passing down through the vessel, while raw material is fed into the bed, preferably by a feed screw 34. The ground product is discharged from the bed by an overflow 28 which determines the level of the bed.

Abstract translation: 热气体被引入颗粒状材料的流化床中，例如石膏，容纳在其下部区域中具有研磨装置或研磨机11的容器10中，该容器10可包括与容器底部的工作台17配合的研磨辊15 。 气体可以通过下游通过容器的管20供应，而原料优选地通过进料螺杆34进料到床中。研磨产物通过溢流28从床中排出，溢流28确定了床的水平 。

公开(公告)号：US5011668A

公开(公告)日：1991-04-30

申请号：US318498

申请日：1989-03-02

Applicant: David J. Ball ,  Edward Varney

Inventor： David J. Ball ,  Edward Varney

IPC: F27B9/00 ,  B01J6/00 ,  C04B2/10 ,  C04B2/12 ,  C04B11/02 ,  C04B11/028 ,  C04B11/036 ,  F27B15/10

CPC classification number: C04B11/0281

Abstract: In a method and apparatus for calcining calcium sulphate dihydrate or like heat sensitive material, in which a bed of the material is heated in a vessel (41) by the direct introduction of a hot gas through a tube (21) extending downwardly into the bed, the proportion of insoluble anhydrite (II) in the product is reduced by lowering the temperature of the hot gas before it contacts the material of the bed. This is done by indirect heat exchange through the wall of the tube 21 with a relatively cool substance, for example, powdered gypsum or recycled exhaust gases, in an outer tube (26). The cooling material in the outer tube contacts the material in the bed before the latter is contacted by the hot gas.

Abstract translation: 在用于煅烧硫酸钙二水合物或类似热敏材料的方法和装置中，其中通过将热气体直接引入通过向下延伸到床中的管（21）而在容器（41）中加热材料床 通过降低热气体在与床的材料接触之前的温度来降低产物中不溶性硬石膏（II）的比例。 这是通过管21的壁与外管（26）中的相对较冷的物质例如粉状石膏或再循环废气的间接热交换来完成的。 外管中的冷却材料在床之间与热气体接触时接触床中的材料。

公开(公告)号：US4460227A

公开(公告)日：1984-07-17

申请号：US284249

申请日：1981-07-17

Applicant: David J. Ball

Inventor： David J. Ball

IPC: H01R13/52 ,  H01R13/56

CPC classification number: H01R13/5205

Abstract: A multi-wire cable grommet constructed of a pliable material has a plurality of apertures extending therethrough and wire-sealing wall portions, one for each cable wire. Centrally located and extending angularly inwardly from the aperture wall is a generally cone-shaped wall portion which terminates in an opening smaller than the wire diameter. The opening in the cone-shaped portion lies on the aperture axis and is encompassed by a bead with wall thickness being relatively thin so that any wire movements transversely of the aperture axis will be taken up by bending of the conical wall rather than by any tendency of the conical member opening bead to be stretched away from sealing relationship with the wire.

Abstract translation: 由柔韧材料构成的多线电缆索环具有延伸穿过其中的多个孔和线密封壁部分，每个电缆线一个。 位于中心并且从孔壁成角度地延伸的是大致锥形的壁部分，该壁部分终止于小于线径的开口中。 锥形部分中的开口位于孔径轴线上并且被一个具有相对薄的壁厚的珠子包围，使得横向孔径轴线的任何线材移动将被锥形壁的弯曲而不是任何倾向 所述圆锥形构件开口凸缘被拉开以远离与所述导线的密封关系。