Sprayer with detergent or chemical additive feed
阅读：507发布：2023-06-10
专利汇可以提供Sprayer with detergent or chemical additive feed专利检索，专利查询，专利分析的服务。并且A sprayer connectable to a hose and including a body having a compound four-position valve controlling a primary passageway and two sets of auxiliary passageways. An antisiphon device attached to the body connects the hose to the primary passageway, while an extension tube, also attached to the body, forms a continuation of the primary passageway and terminates in a spray nozzle. The auxiliary passageways, shunting the primary passageway, include a common reservoir mounted on the underside of the body for containing either a liquid soap or detergent or pellets of a soluble chemical, such as a pesticide or plant food additive compound. The valve, operable by a finger lever, may be shifted from an ''''off'''' position where the main passageway is closed, to a ''''rinse'''' position where only the primary passageway is open, to a ''''liquid'''' position where both the primary and a first set of auxiliary passageways are open, and to a ''''pellet'''' position where both the primary and the second set of auxiliary passageways are open.，下面是Sprayer with detergent or chemical additive feed专利的具体信息内容。
1. A sprayer comprising: a. a body having a primary passageway through it, a lid on the underside of the body, means at the upstream end of the primary passageway for connection with a water supply line, a first orifice from the primary passageway to the underside of the lid at an upstream position, and a second orifice from the primary passageway to the underside of the lid at a downstream position, said orifices forming portions of an auxiliary passageway shunting the primary passageway and the diameter of the primary passageway at the upstream orifice being substantially larger than the diameter of the downstream orifice, whereby flow in the primary passageway produces a positive pressure differential in the primary passageway at the orifices; b. an additive reservoir adapted to be attached to the underside of the lid and completing the auxiliary passageway; c. rotatable valve means controlling the flow through the auxiliary passageway, and including: d. disc means carried upon said valve means at the underside of the lid and adapted to abut against the orifice exits, said upstream orifice and downstream orifice being oriented 180* apart with respect to the valve axis with one being positioned at a greater radial distance from the axis than the others; e. a first pair of ports through the disc means adapted to register with the orifice exits when said disc means is moved to one position; and f. a second pair of ports through said disc means adapted to register with the orifice exits when said disc means is moved to another position.
2. A sprayer, as defined in claim 1, including: a baffle means carried by said valve means in spaced relation to the underside of said disc means and opposite one of said first ports, said baffle means being adapted to register with said upstream orifice exit when said disc is moved to said one position.
3. A sprayer, as defined in claim 2, including: a tube carried upon the underside of said disc means, having one end connected to the disc means at the opposite of said first pair of ports and the other end disposed near the bottom of the reservoir, said tube being mounted in a position whereby it registers with said downstream orifice when said disc means is moved to said one position.
4. A sprayer, as defined in claim 2, wherein: a. said rotatable valve means is provided with a depending stem on which said disc means is mounted; b. said disc means is held on said stem by a locking deivce; and c. said baffle means extends from said locking device.
5. A sprayer, as defined in claim 4, wherein: a. said depending stem is circular in cross section except for a longitudinal planar surface on one side; b. said disc means is provided with a central aperture corresponding in shape to said stem; c. said stem is provided with an annular groove on the outside terminating in an angular ear at each edge of said planar surface; and d. said locking device includes a generally circular ring adapted to fit into said groove, said ring having an opening to permit said locking device to snap onto said stem and a notch at each side of said opening positioned to engage an ear of said stem.
6. A sPrayer, as defined in claim 5, wherein: said baffle means extends laterally from said ring of said locking device at a position spaced from said opening.
7. A sprayer, as defined in claim 1, including: cooperating stop means between said body and said disc means for limiting rotation.
8. A sprayer, as defined in claim 1, wherein: each of said second pair of ports is an elongated circumferential slot adapted to register with said orifice exits when said valve is moved to positions slightly to either side of a central position with respect to the corresponding port.
9. A sprayer comprising: a. a body having a primary passageway through it, a lid on the underside of the body, means at the upstream end of the primary passageway for connection with a water supply line, a first orifice from the primary passageway to the underside of the lid at an upstream position and a second orifice from the primary passageway to the underside of the lid at a downstream position, said first and second orifices forming portions of auxiliary passageways shunting the primary passageway and the diameter of the primary passageway at the upstream orifice being substantially larger than the diameter at the downstream orifice, whereby the fluid pressures established by flow in the primary passageway produce a positive pressure differential in the primary passageway at the orifices; b. an additive reservoir adapted to be connected to the underside of the lid and adapted to complete each auxiliary passageway; and c. a compound valve having a first closure means in the primary passageway between the orifices and a second closure means cooperating with both said orifices, said valve being adapted to open both the primary passageway and a first auxiliary passageway when moved to a first position, to at least partially open the primary passageway and to open a second auxiliary passageway when moved to a second position, to close the primary passageway and the upstream orifice to the reservoir when moved to a third position and to open the primary passageway only when moved to a fourth position.
10. A sprayer, as defined in claim 9, wherein: said rotatable compound valve is provided with stop means which limits its rotation in one direction at said first position and in the opposite direction at said fourth position.
11. A sprayer, as defined in claim 9, wherein said second closure means includes a disc having ports adapted to register with the respective orifices and said stop means comprises: a pair of abutments on the underside of said lid; and a pair of flanges extendung radially outwardly from the sides of said disc, each flange having an upwardly extending tab thereon, said flanges and tabs engaging against said abutments to limit the rotation of said compound valve.
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