公开(公告)号：US3905349A

公开(公告)日：1975-09-16

申请号：US31287472

申请日：1972-12-07

申请人： NIELSEN JOHN ,  CHURCH JOSEPH H

发明人： NIELSEN JOHN ,  CHURCH JOSEPH H

IPC分类号： A63B69/40 ,  F41F1/04 ,  B65G51/28 ,  B65G53/14

CPC分类号： A63B69/409

摘要： A device for discharging spherical members such as tennis balls, baseballs, etc., comprises a discharge tube through which the spherical members are adapted to be fed, which includes a discharge end and an opposite receiving end having a receiving tube therein for the passage of the spherical members through the receiving tube and into the discharge tube. A fan is arranged to discharge air into a chamber for flow in the annular space around the receiving tube into the discharge tube, and it produces a reduced pressure at the inner end of the receiving tube so that spherical members such as tennis balls, baseballs, etc., which are delivered to the receiving tube are induced to flow into the discharge tube. The apparatus also includes a detent in the form of an elastic rubber sleeve member which arrests a ball after it is first induced to flow through the receiving tube and into the discharge tube toward the discharge end thereof. After the ball is arrested, the pressure within the tube builds up until the arresting force of the detent is overcome and the ball is hurled outwardly from the discharge end of the discharge tube.

摘要翻译： 用于排放诸如网球，棒球等球形部件的装置包括：排出管，通过该排出管，球形部件适于供给，其包括排出端和相对的接收端，其中具有用于通过的接收管 球形构件通过接收管并进入放电管。 风扇布置成将空气排放到用于在接收管周围的环形空间中流入放电管的室中，并且其在接收管的内端处产生减压，使得球形构件例如网球，棒球， 被输送到接收管的感应器等被引导到放电管中。 该装置还包括弹性橡胶套筒构件形式的制动器，其在首先被诱导流动通过接收管并且朝向其排出端进入排放管时停止球。 在球被阻止之后，管内的压力积聚直到制动器的止动力被克服，并且球从放电管的排出端向外侧推出。

公开(公告)号：US758772A

公开(公告)日：1904-05-03

申请号：US1902100288

申请日：1902-03-27

申请人： NIELSEN JOHN

发明人： NIELSEN JOHN

CPC分类号： F15B2211/30525