公开(公告)号：US06412707B1

公开(公告)日：2002-07-02

申请号：US09778303

申请日：2001-02-06

申请人： Pedro Wirz

发明人： Pedro Wirz

IPC分类号： A62C1500

CPC分类号： B05B9/0877 ,  B05B9/0888

摘要： A portable backpack sprayer for spraying liquid chemicals such as pesticides, fungicides, and fertilizers having a large storage tank in which is mounted a pressure vessel. A manually actuated pumping assembly is connected with the bottom portion of the pressure vessel and also with the bottom portion of the tank. The pumping assembly comprises a reciprocating piston to draw liquid from the storage tank and pressurize it within the pressure vessel. The operator may discharge the pressurized liquid using a hose and a control valve affixed to the pressure vessel. The pumping assembly further comprises a double-walled piston and a leak barrier to collect any liquid that may leak from the piston. The reciprocating action of the piston is utilized to return the leaked liquid to the storage tank via a return siphon.

摘要翻译： 一种用于喷洒液体化学物质的便携式背包式喷雾器，例如具有大型储罐的农药，杀真菌剂和肥料，其中安装有压力容器。 手动致动的泵送组件与压力容器的底部以及罐的底部连接。 泵送组件包括往复式活塞，以从储罐中抽出液体并在压力容器内对其进行加压。 操作员可以使用附接到压力容器的软管和控制阀来排出加压液体。 泵送组件还包括双壁活塞和泄漏屏障以收集可能从活塞泄漏的任何液体。 活塞的往复运动用于通过回流虹吸将泄漏的液体返回到储罐。

公开(公告)号：US20060261181A1

公开(公告)日：2006-11-23

申请号：US11088483

申请日：2005-03-24

申请人： Pedro Wirz

发明人： Pedro Wirz

IPC分类号： A01G25/09 ,  B05B9/00 ,  B05B3/18 ,  B05B9/03

CPC分类号： A01M7/0046 ,  B05B9/0877

摘要： A backpack sprayer having a tank, an interior pressure chamber, and a piston assembly that is used to draw fluid into the pressure chamber and also to pressurize the chamber so as to expel the fluid under pressure, which piston assembly is connected by a linkage assembly to a handle bar that is manually operated by the operator of the sprayer to cause movement of the piston within a piston cylinder, the improvement including a piston cylinder cap that attached to the end of the piston cylinder and restrains downward movement of the piston arm.

摘要翻译： 一种具有罐，内部压力室和活塞组件的背包式喷雾器，其用于将流体引入压力室并且还对室施加压力，以便在压力下排出流体，该活塞组件通过连杆组件连接 到由喷雾器的操作者手动操作以使活塞在活塞气缸内移动的手柄杆，该改进包括附接到活塞气缸的端部并限制活塞臂的向下运动的活塞气缸盖。

公开(公告)号：US5335853A

公开(公告)日：1994-08-09

申请号：US916942

申请日：1992-07-20

申请人： Pedro Wirz

发明人： Pedro Wirz

IPC分类号： B05B9/08 ,  B05B15/00 ,  B05B9/04

CPC分类号： B05B9/0877 ,  B05B15/002 ,  B05B9/0888

摘要： A backpack spray apparatus for applying insecticides and fertilizers comprises a large tank in which is mounted a pressure vessel. A pumping assembly is connected with the bottom portion of the pressure vessel and also with the bottom portion of the container tank. It consists of a double-acting piston assembly, a valve, and passages to connect a portion of the cylinder chamber above the piston assembly to the pressure vessel and to the container tank, so that upon reciprocation of the piston there is pumping of liquid from the container tank to the pressure vessel. There is also a connection between the portion of the cylinder chamber below the piston assembly and the lower portion of the container tank, so that upon reciprocation of the piston assembly there is pumping of the liquid back and forth. An operator-actuated handle reciprocates the piston assembly. There is no diaphragm associated with the pumping assembly--all pumping being done by the pumping assembly. Any liquid that leaks from the piston assembly does not drop onto the operator or the earth but instead joins liquid being pumped back and forth as above indicated.

摘要翻译： 用于施用杀虫剂和肥料的背包式喷雾装置包括安装有压力容器的大型罐。 泵送组件与压力容器的底部以及容器罐的底部连接。 它由一个双作用活塞组件，一个阀和一个通道组成，用于将活塞组件上方的气缸室的一部分连接到压力容器和容器箱，以便在活塞往复运动时，泵送液体从 容器罐到压力容器。 在活塞组件下方的气缸室的部分和容器箱的下部之间还存在连接，使得在活塞组件往复运动时，液体来回泵送。 操作者致动的手柄使活塞组件往复运动。 没有与泵送组件相关联的隔膜 - 所有泵送都由泵送组件完成。 从活塞组件泄漏的任何液体不会落在操作者或地球上，而是如上所述连接被泵送的液体。