A pressurized tank sprayer includes a base tank including a neck and a mouth. A lid having a top portion and a depending skirt is positioned upon the tank. Threads are provided on the neck of the tank and engage threads on the depending skirt of the lid in order to secure the lid to the tank. The th
A pressurized tank sprayer includes a base tank including a neck and a mouth. A lid having a top portion and a depending skirt is positioned upon the tank. Threads are provided on the neck of the tank and engage threads on the depending skirt of the lid in order to secure the lid to the tank. The threads include locking features that prevent the lid from becoming forcibly detached from the tank during removal of the lid if excess pressure remains in the tank. An annular seal is seated in the lid and provides a seal between the tank and the lid. The annular seal includes an annular sealing surface and a concave interior surface. The annular sealing surface contacts the interior surface of the tank while the concave interior surface is exposed to the interior of the tank.
대표청구항▼
1. A tank sprayer comprising: a. a tank defining an interior chamber and having a mouth configured to provide access to the interior chamber, the tank further including a neck portion defining the mouth, and the neck portion having an interior neck surface and an exterior neck surface;b. a lid confi
1. A tank sprayer comprising: a. a tank defining an interior chamber and having a mouth configured to provide access to the interior chamber, the tank further including a neck portion defining the mouth, and the neck portion having an interior neck surface and an exterior neck surface;b. a lid configured to cover the mouth of the tank when the lid is secured to the tank, the lid including (i) a top portion, (ii) an annular wall depending from the top portion, the annular wall having an outer annular wall surface and (iii) a skirt depending from the top portion and having an interior skirt surface, the skirt being spaced apart from the annular wall to define an interior space therebetween,c. a seal positioned within the space and having a first lip, a second lip that is spaced apart from said first lip, and a transverse body portion connected between said first lip and said second lip; andd. a pump configured to advance air into the interior chamber of the tank,wherein said top portion of said lid includes a ramp structure that projects into said interior space with a curved profile to define a ramped seal seat surface,wherein, when (i) said transverse body portion is positioned in contact with said ramped seal seat surface, and (ii) said first lip is positioned in contact with said outer annular wall surface, said seal extends beyond said ramped seal seat surface so as to position said second lip in contact with said interior neck surface at a seal location, andwherein (i) a first gap is defined between said second lip and said interior neck surface on a first side of said seal location, and (ii) a second gap is defined between said second lip and said interior neck surface on a second opposite side of said seal location. 2. The tank sprayer of claim 1, wherein: the skirt has a first plurality of threads formed on the interior skirt surface,the neck portion has a second plurality of threads formed on the exterior neck surface, andthe first plurality of threads is configured to meshingly engage with the second plurality of threads. 3. The tank sprayer of claim 2 wherein the first plurality of threads and the second plurality of threads include means for permitting an axial shift of the first plurality of threads relative to the second plurality of threads in response to an increased pressure within the tank during rotatable disengagement of the first plurality of threads relative to the second plurality of threads, said axial shift permitting said increased pressure to be released from the tank without disengagement of the first plurality of threads from the second plurality of threads. 4. The tank sprayer of claim 1, wherein: the first lip of the seal is spaced apart from the second lip of the seal so as to define a void therebetween, andthe void is in fluid communication with the interior chamber of the tank, whereby an increase in pressure in the interior chamber causes an increase in pressure in the void. 5. The tank sprayer of claim 1, wherein the pump is attached to the lid. 6. A tank sprayer comprising: a tank having (i) an interior chamber, (ii) a first opening configured to provide access to said interior chamber, and (iii) a neck portion defining said first opening and having an interior neck surface and an exterior neck surface;a lid configured to cover said first opening when said lid is secured to said tank, said lid having a fluid port and including (i) a top portion, (ii) an annular wall depending from said top portion, said annular wall having an outer annular wall surface, and (iii) a skirt depending from said top portion and having an interior skirt surface, said skirt being spaced apart from said annular wall to define an interior space therebetween;a seal positioned within said space and having a first lip, a second lip that is spaced apart from said first lip, and a transverse body portion connected between said first lip and said second lip;a pump attached to said lid and configured to advance air into said interior chamber of said tank; anda hose assembly including (i) a hose positioned in fluid communication with said fluid port of said lid, and (ii) a nozzle in fluid communication with said hose,wherein said top portion of said lid includes a ramp structure that projects into said interior space with a curved profile to define a ramped seal seat surface,wherein, when (i) said transverse body portion is positioned in contact with said ramped seal seat surface, and (ii) said first lip is positioned in contact with said outer annular wall surface, said seal extends beyond said ramped seal seat surface so as to position said second lip in contact with said interior neck surface at a seal location, andwherein (i) a first gap is defined between said second lip and said interior neck surface on a first side of said seal location, and (ii) a second gap is defined between said second lip and said interior neck surface on a second opposite side of said seal location. 7. The tank sprayer of claim 6, wherein: said skirt has a first plurality of threads formed on said interior skirt surface,said neck portion has a second plurality of threads formed on said exterior neck surface, andsaid first plurality of threads is configured to meshingly engage with said second plurality of threads. 8. The tank sprayer of claim 6, wherein: the first lip of the seal is spaced apart from the second lip of the seal so as to define a void therebetween, andsaid gap is in fluid communication with said interior chamber of said tank, whereby an increase in pressure in said interior chamber causes an increase in pressure in said void. 9. The tank sprayer of claim 6, wherein said lid includes at least one handle configured to be grasped by a user. 10. The tank sprayer of claim 7 wherein said first plurality of threads and said second plurality of threads include means for permitting an axial shift of said first plurality of threads relative to said second plurality of threads in response to an increased pressure within said tank during rotatable disengagement of said first plurality of threads relative to said second plurality of threads, said axial shift permitting said increased pressure to be released from said tank without disengagement of said first plurality of threads from said second plurality of threads. 11. The tank sprayer of claim 1, wherein; said ramped seal seat surface includes a concave ramped seal seat surface, andsaid transverse body portion of said seal includes a convex exterior body surface configured to mate with said concave ramped seal seat surface. 12. The tank sprayer of claim 1, wherein the interior skirt surface is positioned in contact with the exterior neck surface when the neck portion is positioned within the space. 13. The tank sprayer of claim 1, wherein: said lid defines an annular recess formed around said annular wall,said annular recess is juxtaposed to said space,said seal further has a projection connected to said first lip, said projection being positioned in said annular recess, andsaid seal is generally h-shaped when said seal is viewed in a cross-sectional view. 14. The tank sprayer of claim 7, wherein; said ramped seal seat surface includes a concave ramped seal seat surface, andsaid transverse body portion of said seal includes a convex exterior body surface configured to mate with said concave ramped seal seat surface. 15. The tank sprayer of claim 7, wherein the interior skirt surface is positioned in contact with the exterior neck surface when the neck portion is positioned within the space. 16. The tank sprayer of claim 7, wherein: said lid defines an annular recess formed around said annular wall,said annular recess is juxtaposed to said space,said seal further has a projection connected to said first lip, said projection being positioned in said annular recess, andsaid seal is generally h-shaped when said seal is viewed in a cross-sectional view.
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이 특허에 인용된 특허 (22)
Ladina Joseph M. (Marietta GA) Exley Timothy R. (Stone Mountain GA) Szedon William A. (Stone Mountain GA), Cam follower closure on container with cam track finish.
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