[특허]Longitudinal valve ready to use hose end sprayer

MeadWestvaco Calmar, Inc.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Longitudinal valve ready to use hose end sprayer

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05B-007/30 B05B-007/24
미국특허분류(USC)	239/318; 239/310; 239/353; 239/414; 239/525; 239/581.1; 137/893
출원번호	UP-0068121 (2005-02-28)
등록번호	US-7631819 (2009-12-24)
발명자 / 주소	Shanklin, Donald J. Englhard, Ronald F.
출원인 / 주소	MeadWestvaco Calmar, Inc.
인용정보	피인용 횟수 : 2 인용 특허 : 59

초록
▼

A sprayer head assembly comprises a sprayer head and a valve for controlling the flow of fluid through the assembly. The sprayer head comprises a chemical passage, a carrier fluid passage and a vent passage. A generally cylindrical bore is in communication with the chemical, vent carrier fluid passages. The valve is moveably positioned within the bore. The valve is moveable between a first position and a second position. The valve comprises a first passage and a chemical inlet passage that is in communication with the first passage. In the first position, the valve blocks the vent, chemical and carrier fluid passages. In the second position, the first passage is configured to be in communication with the carrier fluid passage while the chemical fluid passage is in communication with the chemical inlet passage. The valve defines a suction generating recess positioned within the first passage. The chemical inlet passage communicates with the first passage through an opening positioned within the suction generating recess. The first passage defines an outlet for discharging the carrier fluid and chemical in a first direction and the valve is rotatable about an axis that extends generally parallel to the first direction.

대표
청구항
▼

What is claimed is: 1. A sprayer head assembly for connection to a container that defines a cavity for storing a chemical to be sprayed, the sprayer head assembly comprising: a sprayer head; a cylindrical valve chamber comprising a valve chamber end wall, the valve chamber end wall having a single opening; a chemical passage that is configured to be in communication with the cavity and in communication with the valve chamber; a vent passage that is configured to be in communication with the cavity and in communication with the valve chamber; a carrier fluid passage that is configured to be in communication with a carrier fluid source and in communication with the valve chamber through the single opening; and a valve moveably positioned within the valve chamber between at least a first position and a second position, the valve comprising: a first passage and a chemical inlet passage in communication with the first passage, the valve being configured such that, in the first position, the valve blocks the vent passage, chemical passage and carrier fluid passage, in the second position, the first passage is configured to be in communication with the carrier fluid passage while the chemical passage is in communication with the chemical inlet passage; a proximal end wall including an outer surface and an inner surface, the proximal end wall having a first opening that, in the second position, is in communication with the single opening in the valve chamber end wall; and a suction generating recess positioned within the first passage, the chemical inlet passage communicating with the first passage through an opening positioned within the suction generating recess and wherein the first passage defines an outlet for discharging a carrier fluid and chemical in a first direction and wherein the valve is rotatable about an axis that is generally parallel to the first direction. 2. The sprayer head assembly as in claim 1, wherein the valve has a third position in which the first passage is configured to be in communication with the carrier fluid passage and the chemical inlet passage is configured to not be in communication with the chemical passage. 3. The sprayer head assembly as in claim 2, wherein the valve includes a second opening that in the third position is aligned with an outlet of the carrier fluid passage to place the carrier fluid passage in communication with the first passage. 4. The sprayer head assembly as in claim 1, wherein the chemical inlet passage includes a metering orifice. 5. The sprayer head assembly as in claim 1, wherein the sprayer head includes a retention structure which is configured to engage a corresponding retention structure on the valve in a snap fit. 6. The sprayer head assembly as in claim 5, wherein the retention structure comprises an annular ridge on the valve which engages a annular recess on the valve chamber. 7. The sprayer head assembly as in claim 5, wherein the retention structure is an annular ridge on an outer surface of the sprayer head which engages one or more tabs of the valve which extends over a portion of the outer surface. 8. The sprayer head assembly as in claim 1, comprising a first sealing member configured to provide a seal between the carrier fluid passage and the valve chamber. 9. The sprayer head assembly as in claim 8 wherein the first sealing member is positioned within a recess formed in the valve chamber. 10. The sprayer head assembly as in claim 9, wherein the first sealing member forms an annular ring that generally surrounds an outlet of the carrier fluid passage. 11. The sprayer head assembly as in claim 8, further comprising a second sealing member configured to provide a seal between the chemical inlet passage and the valve chamber. 12. The sprayer head assembly as in claim 11, wherein the second sealing member is positioned within a second recess on the valve chamber. 13. A sprayer head assembly for connection to a container that defines a cavity for storing a chemical to be sprayed, the sprayer head assembly comprising: a sprayer head comprising: a chemical passage that is configured to be in communication with the cavity, a carrier fluid passage that is configured to be in communication with a carrier fluid source, a vent passage that is configured to be in communication with the cavity; a generally cylindrical valve chamber that is in communication with the chemical passage, vent passage, and carrier fluid passage; and a valve moveably positioned within the valve chamber between at least a first position and a second position, the valve comprising: a first passage and a chemical inlet passage in communication with the first passage, the valve being configured such that, in the first position, the valve blocks the vent passage, chemical passage and carrier fluid passage, in the second position, the first passage is configured to be in communication with the carrier fluid passage while the chemical passage is in communication with the chemical inlet passage; wherein the valve further comprises a suction generating recess positioned within the first passage, the chemical inlet passage communicating with the first passage through an opening positioned within the suction generating recess and wherein the first passage defines an outlet for discharging a carrier fluid and chemical in a first direction and wherein the valve is rotatable about an axis that is generally parallel to the first direction, and a retention structure which is configured to engage a corresponding retention structure on the valve in a snap fit. 14. The sprayer head assembly of claim 13, wherein the retention structure comprises an annular ridge on the valve which engages an annular recess on the valve chamber. 15. The sprayer head assembly as in claim 13, wherein the retention structure is an annular ridge on an outer surface of the sprayer head which engages one or more tabs of the valve which extends over a portion of the outer surface. 16. The sprayer head assembly as in claim 13, wherein the valve includes a first opening that in the second position is aligned with an outlet of the carrier fluid passage to place the carrier fluid passage in communication with the first passage. 17. The sprayer head assembly as in claim 13, wherein the valve has a third position in which the first passage is configured to be in communication with the carrier fluid passage and the chemical inlet passage is configured to not be in communication with the chemical passage. 18. A sprayer head assembly, comprising: a sprayer head, comprising: a chemical passage; a carrier fluid passage; a vent passage; a valve chamber that is in communication with the chemical passage, vent passage, and carrier fluid passage; and a recess in the valve chamber; a sealing member positioned in the recess; and a valve positioned within the valve chamber and moveable between at least a first position and a second position, the valve comprising: a first passage defining an outlet in a first direction; a suction generating recess positioned in the first passage; an opening in the suction generating recess; a chemical inlet passage in communication with the first passage through the opening; and wherein the valve is rotatable about an axis that is generally parallel to the first direction and the valve blocks the vent passage, chemical passage and carrier fluid passage in the first position and in the second position, the first passage is in communication with the carrier fluid passage and the chemical passage is in communication with the chemical inlet passage. 19. The sprayer head assembly of claim 18, wherein the sealing member forms an annular ring that generally surrounds an outlet of the carrier fluid passage. 20. The sprayer head assembly of claim 18, further comprising a second sealing member between the chemical inlet passage and the valve chamber.

이 특허에 인용된 특허 (59)

이 특허를 인용한 특허 피인용횟수: 2

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Longitudinal valve ready to use hose end sprayer

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이 특허에 인용된 특허 (59)

이 특허를 인용한 특허 피인용횟수: 2

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Longitudinal valve ready to use hose end sprayer

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이 특허에 인용된 특허 (59)

이 특허를 인용한 특허 피인용횟수: 2

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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