Cap for vacuum container
a vacuum container and cap technology, applied in the field of cap for vacuum containers, can solve the problems of troublesome forging of doors 21 against doorframes, and achieve the effect of better sealing a gap
Inactive Publication Date: 2004-07-01
CHEN JEN FU
View PDF2 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0007] According to the present invention, a vacuum storage device includes a can, a cap for closing the can, an inflatable seal for better sealing a gap between the can and the cap and a pump for pumping air from the can to the exterior and into the seal.
Problems solved by technology
Forcing the doors 21 against the doorframes is however troublesome.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] Referring to FIGS. 1.about.4, according to the preferred embodiment of the present invention, a vacuum storage device includes a can 2, a cap 4, a pump 6, a pressure sensitive switch 8, a power unit 9 and a seal 10.
[0018] The can 2 defines a space 21 for storing articles. The can 2 includes a closed lower end and an open upper end.
[0019] The cap 4 can be mounted on the can 2. The cap 4 includes a collar 40 and a disk 41 formed on an internal face of the collar 40. An upper space 42 is defined in the collar 40 above the disk 41, and a lower space 43 is defined in the collar 40 under the disk 41. An annular rib 44 is formed on a lower side of the disk 41. The annular rib 44 includes an annular flange.
[0020] The seal 10 is installed between the collar 40 and the annular rib 44. The seal 10 is retained in position by means of the annular flange of the annular rib 44. The seal 10 is hollow and inflatable.
[0021] The pump 6 is received in the upper space 42 and supported on an upper...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Pressure | aaaaa | aaaaa |
| Sensitivity | aaaaa | aaaaa |
Login to View More
Abstract
A vacuum storage device includes a can, a cap for closing the can, an inflatable seal for better sealing a gap between the can and the cap and a pump for pumping air from the can to the exterior and into the seal. The cap includes a collar and a disk formed on an internal face of the collar, thus defining an upper space in the collar above the disk for receiving the pump and a lower space in the collar under the disk for receiving the seal. The cap may include an annular rib formed on a lower side of the disk, and the seal may be installed between the collar and the annular rib. The annular rib may include an annular flange for retaining the seal in position. The pump may include a first duct and a second duct. The first duct extends through an orifice defined in the disk within the annular rib so that air can be pumped from the can through the duct when the cap is mounted on the can. The second duct extends through a second orifice defined in the disk into an orifice defined in the seal so that air can be pumped into the seal through the second duct. A cover may be mounted on the collar for shielding the pump in the upper space. A manual switch may be mounted on the cover and connected with the pump. A pressure sensitive switch may be connected with the pump and communicated with the can for detecting the pressure in the can and controls the pump based on the pressure in the can.
Description
BACKGROUND OF INVENTION[0001] 1. Field Of Invention[0002] The present invention relates to a cap for a vacuum container.[0003] 2. Related Prior Art[0004] Taiwanese Patent Publication No. 302897 discloses a vacuum safe including a plurality of chambers. Each chamber includes a doorframe and a door 21 equipped with a seal 22 for airtight engagement with the doorframe. After the doors 21 are opened and closed many times, the seals 22 might become deformed. When this happens, the seals 22 will provide inadequate effect of sealing, and a large force must be exerted on the doors 21 against such the doorframes for quite some time before adequate vacuum occurs in the chamber due to sufficient air pumped from the space. Forcing the doors 21 against the doorframes is however troublesome.[0005] The present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.SUMMARY OF INVENTION[0006] It is the primary objective of the present invention to prov...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B65B31/04
CPCB65B31/046
Inventor CHEN, JEN-FU
Owner CHEN JEN FU