IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0260391
(2016-09-09)
|
등록번호 |
US-10143350
(2018-12-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
16 |
초록
▼
A system for coupling a container storing a treating chemistry to a surface cleaning device capable of dispensing the treating chemistry to a surface to be cleaned includes a cap provided on the container and a receiver provided on the surface cleaning apparatus. The cap and receiver include plunger
A system for coupling a container storing a treating chemistry to a surface cleaning device capable of dispensing the treating chemistry to a surface to be cleaned includes a cap provided on the container and a receiver provided on the surface cleaning apparatus. The cap and receiver include plunger valve assemblies that are opened when the cap is coupled with the receiver.
대표청구항
▼
1. A system for coupling a container storing a treating chemistry to a surface cleaning device capable of dispensing the treating chemistry to a surface to be cleaned, comprising: a receiver provided on the surface cleaning device, comprising: a bottom wall and a receiver sidewall defining a receive
1. A system for coupling a container storing a treating chemistry to a surface cleaning device capable of dispensing the treating chemistry to a surface to be cleaned, comprising: a receiver provided on the surface cleaning device, comprising: a bottom wall and a receiver sidewall defining a receiver cavity;a receiver inlet channel through the bottom wall and having an outlet through which fluid can flow into a storage tank of the surface cleaning device; anda receiver plunger valve assembly positioned within the receiver inlet channel to control the flow of fluid through the outlet of the receiver inlet channel, wherein the receiver plunger valve assembly is biased towards a closed condition in which the receiver plunger valve assembly closes the receiver inlet channel; anda cap received on the container to close an open top of the container, comprising: an end face and a cap sidewall configured to be at least partially received by the receiver cavity;a cap outlet channel through the end face; anda cap plunger valve assembly positioned within the cap outlet channel to control the dispensing of fluid from the container through the cap outlet channel, wherein the cap plunger valve assembly is biased towards a closed condition in which the cap plunger valve assembly closes the cap outlet channel;wherein the cap plunger valve assembly comprises a cap plunger, a valve seal carried on the cap plunger, and a biasing element, wherein the biasing element biases the cap plunger and valve seal toward the closed condition; andwherein the cap is configured to be coupled with the receiver, and wherein the receiver plunger valve assembly and the cap plunger valve assembly are configured to engage with each other and move to an open condition upon coupling of the cap with the receiver to permit fluid to flow through the cap and the receiver. 2. The system of claim 1, wherein the receiver plunger valve assembly is configured to at least partially open prior to the cap plunger valve assembly upon inserting the cap into the receiver cavity and wherein the cap plunger valve assembly is configured to close prior to the receiver plunger valve assembly upon removing the cap from the receiver cavity. 3. The system of claim 1, wherein: the receiver plunger valve assembly comprises a receiver plunger and a receiver spring which biases the receiver plunger toward the closed condition;the biasing element comprises a cap spring; andthe spring constant of the cap spring is greater than the spring constant of the receiver spring, such that upon engagement of the cap plunger and the receiver plunger, the receiver plunger valve assembly is opened prior to the cap plunger valve assembly. 4. The system of claim 3, wherein the receiver further comprises a collar on the bottom wall which retains the receiver plunger relative to the receiver inlet channel, wherein the receiver plunger is configured to engage the collar in a fully depressed position of the receiver plunger valve assembly. 5. The system of claim 1, wherein the receiver plunger valve assembly comprises a receiver plunger, a receiver valve seal carried on the receiver plunger, and a receiver biasing element, wherein the receiver biasing element biases the receiver plunger and the receiver valve seal toward the closed condition such that the receiver valve seal seals against a sealing surface of the receiver. 6. The system of claim 5, wherein the receiver plunger comprises a stem and a plunger head, wherein the circumference of the plunger head comprises a wavy profile to facilitate the flow of fluid around the plunger head and into the receiver inlet channel. 7. The system of claim 5, wherein the receiver plunger valve assembly further comprises a retaining element retaining the receiver plunger relative to the receiver inlet channel, wherein the retaining element includes a collar supporting the receiver plunger relative to the receiver inlet channel and supported within the receiver inlet channel by a plurality of arms. 8. The system of claim 1, wherein the cap plunger comprises a stem and a plunger head, wherein the valve seal is provided on the stem, adjacent the plunger head. 9. The system of claim 1, wherein the cap plunger valve assembly further comprises a retaining element retaining the cap plunger and valve seal relative to the cap. 10. The system of claim 9, wherein the retaining element comprises a webbing that includes a first aperture for receiving the cap plunger and a plurality of second apertures which define channels through which fluid can flow through the retaining element. 11. The system of claim 1, wherein the cap further comprises a rim on the end face defining an inlet to the cap outlet channel, wherein the biasing element biases the valve seal toward the rim to seal the inlet to the cap outlet channel. 12. The system of claim 11, wherein the valve seal comprises an angled sealing face which seats within the rim to form a fluid tight seal between the valve seal and the rim when the cap plunger valve assembly is in the closed condition. 13. The system of claim 1, wherein the cap further comprises stop wall spaced from the end face, wherein the cap sidewall extends between the end face and the stop wall, and wherein the stop wall engages an upper end of the receiver when the cap is coupled with the receiver. 14. The system of claim 13, wherein a first distance is defined between a head of the receiver plunger valve assembly and the upper end of the receiver and a second distance is defined between the a head of the cap plunger valve assembly and the stop wall, wherein the first distance is less than the second distance such that the head of the cap plunger valve assembly engages the head of the receiver plunger valve assembly prior to the stop wall engaging the upper end of the receiver. 15. The system of claim 14, wherein the cap further comprises a cap seal on an exterior of the cap sidewall, wherein the cap seal engages the receiver sidewall to form a seal between the cap and the receiver when the cap is coupled with the receiver. 16. The system of claim 1, wherein the receiver and cap are made from at least one of polypropylene, polyphenylene-polystyrene blends, ethylene propylene diene monomer (EPDM), or stainless steel. 17. The system of claim 1, and further comprising a cover removably received on the cap and a cover seal between the cover and the cap, wherein the cover seal comprises an aperture and engages the cap plunger valve assembly to at least partially open the cap plunger valve assembly to vent gas from within the container through the aperture. 18. The system of claim 17, wherein a vapor membrane is positioned within the aperture of the cover seal. 19. The system of claim 18, wherein the cover seal is provided on an inner surface of the cover and an upper face of the cover seal comprises a plurality of vent channels to facilitate the flow of a gas between the upper face of the cover seal and the cover.
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