|Publication number||US20060231556 A1|
|Application number||US 10/964,437|
|Publication date||Oct 19, 2006|
|Filing date||Oct 13, 2004|
|Priority date||Oct 13, 2004|
|Publication number||10964437, 964437, US 2006/0231556 A1, US 2006/231556 A1, US 20060231556 A1, US 20060231556A1, US 2006231556 A1, US 2006231556A1, US-A1-20060231556, US-A1-2006231556, US2006/0231556A1, US2006/231556A1, US20060231556 A1, US20060231556A1, US2006231556 A1, US2006231556A1|
|Original Assignee||Chien Chiu|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (2), Classifications (9), Legal Events (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention relates to a vacuum canister, and more particularly to a vacuum canister assembly having a solid sealing structure for improving or facilitating vacuuming effect or action of the vacuum canister assembly.
2. Description of the Prior Art
Various kinds of typical vacuum canisters have been developed and comprise a piston tube slidably engaged in a sleeve pipe, and a head disposed in an interval formed by an anchor plate and a grating plate.
For example, U.S. Pat. No. 5,564,581 to Lin discloses one of the typical vacuum canisters comprising a cover having such a piston tube slidably and laterally engaged in a sleeve pipe of the cover, and having a head disposed in an interval formed by an anchor plate and a grating plate, in order to form a check valve, and for allowing the piston tube to pump and to vacuum the container.
However, the pumping structure of the typical vacuum canisters comprising a rough structure that may not be used to effectively vacuum the canisters. In addition, the cover includes a structure that fits a particular container, and the cover may not be attached onto the other containers for vacuuming the other containers.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional vacuum canisters.
The primary objective of the present invention is to provide a vacuum canister assembly including a solid and effective sealing structure for improving or facilitating vacuuming effect or action of the vacuum canister assembly.
In accordance with one aspect of the invention, there is provided a vacuum canister assembly comprising a container, a cover including a pad attached to bottom thereof, for engaging onto the container, the cover including a peripheral wall, a bottom wall attached to the peripheral wall, a peripheral fence extended from the bottom wall to form an annular channel between the peripheral wall and the peripheral fence, and at least one aperture formed in the bottom wall, a casing including a lower peripheral panel extended downwardly therefrom, an upper peripheral panel extended downwardly therefrom, a partition disposed between the lower and the upper peripheral panels and having a center hole and at least one orifice formed therein, the lower peripheral panel being engaged into the annular channel of the cover, a gasket including an extension extended downwardly therefrom and slidably engaged through the center hole of the casing, and a bore formed therein, a housing including a lower peripheral flap extended downwardly therefrom for engaging into the casing and for engaging with the upper peripheral panel of the casing, and including a chamber formed in the lower peripheral flap thereof and defined by a lower board, the lower board including a center hole and at least one perforation formed therein, a plug including a plug body slidably engaged in the chamber of the housing, and having a peg extended downwardly therefrom and engaged into the bore of the gasket and attached to the gasket, to allow the gasket and the peg of the plug to be moved in concert with each other, a barrel including a lower portion engaged onto the housing, and a piston rod slidably engaged into the barrel and including a piston attached to bottom, for drawing air when the piston rod is moved along the barrel in a reciprocating action. When the piston rod is moved into the barrel, the plug and the gasket may be movable relative to the housing and the casing to force the gasket to engage onto the partition of the casing, and to block the center hole and the orifice of the casing, and to block the aperture of the bottom wall of the cover, and to prevent air from being pumped into the container via the cover, and when the piston rod is pulled outwardly relative to the barrel, the plug and the gasket may be drawn and moved relative to the housing and the casing, to disengage the gasket from the partition of the casing, to open the center hole and the orifice of the casing, and also to open the aperture of the bottom wall of the cover, to allow air to be pumped from the container out through the cover.
A cap may further be provided for engaging onto the container, and the cover being engageable onto the cap for vacuuming the cap. The plug may include at least one latch extended from the peg thereof, to engage with the gasket, and to secure the gasket to the peg of the plug.
A sleeve may further be provided and may include an outer peripheral plate extended downwardly from an upper plate for engaging onto the container, and an inner peripheral plate extended downwardly from the upper plate, to define a bore therein and to engage into the container, and the cover includes a cylindrical member extended downwardly therefrom and engaged into the bore of the sleeve.
The sleeve includes at least one peripheral rib extended upwardly from the upper plate, the bottom wall of the cover includes at least one peripheral slot formed therein to receive the peripheral rib of the sleeve.
Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
Referring to the drawings, and initially to
The vacuum canister assembly 1 further includes a cover 12 having a planar or annular pad 13 attached to bottom thereof, for engaging onto the container 10 (
As shown in
As shown in
The lower peripheral panel 24 may be engaged into one of the annular channels 18 of the cover 12, and engaged with or contacted with or force-fitted onto one of the peripheral fences 17 of the cover 12. A gasket 30 includes an extension 31 extended downwardly therefrom and slidably engaged through the center hole 27 of the casing 23, and a bore 32 formed in the extension 31 of the gasket 30 and opened upwardly.
A housing 40 includes a lower peripheral flap 41 extended downwardly therefrom for engaging into the casing 23 and for engaging with the upper peripheral panel 25 of the casing 23, and includes a chamber 42 formed in the lower peripheral flap 41 thereof and defined by a lower board 43 which includes a center hole 44 and one or more perforations 45 formed therein and offset from the center hole 44 thereof.
A plug 50 includes a plug body 51 slidably engaged in the chamber 42 of the housing 40, and having a peg 52 extended downwardly therefrom and engaged into the bore 32 of the gasket 30, and preferably having one or more latches 53 extended from the peg 52 thereof, to engage with the gasket 30, and to secure or lock the gasket 30 to the peg 52 of the plug 50, and to allow the gasket 30 and the peg 52 of the plug 50 to be moved in concert with each other.
A barrel 60 may include a lower portion 61 engaged onto the housing 40, and a piston rod 62 may be slidably engaged into the barrel 60 and having a piston 63 attached to the bottom thereof, for pumping air when the piston rod 62 is moved along the barrel 60 in a reciprocating action.
In operation, as shown in
On the contrary, as shown in
The barrel 60 may include ventilating holes formed therein (not shown) for allowing air to flow out of the barrel 60 when the piston rod 62 is moved or forced into the barrel 60, to allow the pressurized air in the barrel 60 to flow out of the barrel 60 via the ventilating holes thereof, in which the ventilating holes of the barrel 60 are typical and will not be described in further details.
As shown in
As shown in
The cover 12 may include a cylindrical member 21 extended downwardly therefrom and engaged into the bore 74 of the sleeve 70, and preferably engaged with the inner peripheral plate 73 of the sleeve 70, to make an air tight seal between the cylindrical member 21 of the cover 12 and the inner peripheral plate 73 of the sleeve 70. The bottom wall 15 of the cover 12 may include one or more peripheral or annular slots 80 formed therein (
Accordingly, the vacuum canister assembly in accordance with the present invention includes a solid and effective sealing structure for improving or facilitating vacuuming effect or action of the vacuum canister assembly.
Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|WO2010030112A2 *||Sep 9, 2009||Mar 18, 2010||(주)한별특허기술개발||Air intake/discharge structure for vacuum pump and vacuum pump using the same|
|WO2014160608A1 *||Mar 21, 2014||Oct 2, 2014||3M Innovative Properties Company||Vacuum container, cap, and vacuum container assembly|
|U.S. Classification||220/203.18, 220/367.1, 141/65, 220/203.15, 220/231|
|International Classification||B65D51/16, B65B31/04|
|Oct 13, 2004||AS||Assignment|
Owner name: CHIU, CHIEN CHIH, TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WEI, HONG HWA;REEL/FRAME:015898/0387
Effective date: 20040910