Package making – Closing packages and filled receptacles – Separate closure applying
Reexamination Certificate
2002-12-20
2004-05-25
Sipos, John (Department: 3721)
Package making
Closing packages and filled receptacles
Separate closure applying
C053S300000
Reexamination Certificate
active
06739109
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Technical Field of the Invention
The present invention relates to a sealing device, and in particular, to a sealing machine which used to seal a disposable cup by means of a thermal pressing process.
(b) Description of the Prior Art
Referring to
FIG. 1
, there is shown a conventional sealing device
10
having a front side being mounted with a thermal pressing mechanism
15
for pressing a film
16
onto the edge of a disposable cup
19
so that the film
16
is adhered to the edge of the cup
19
. A control box is secured to the top section of the thermal pressing mechanism
15
and is provided with a control panel
101
to control the operation of the sealing device
10
. The disadvantage of this conventional sealing device
10
is that the sealing process is slow and is not convenient. This is because the design to retrieve the disposable cup
15
after the cup
15
has been sealed in laborious.
FIG. 2
is another conventional sealing device
20
having a thermal pressing mechanism
21
and a holding platform
24
. A placing seat
26
is located below a through hole
25
of the holding platform
24
. The disadvantage of this conventional sealing device is that the height of the cup is only limited to one specific size and if the height is too tall or too short, this sealing device
20
cannot be used to seal the cup, as shown in
FIGS. 3 and 4
.
Referring to
FIG. 3
, when a tall up
19
enters the sealing device
20
, a safety blocking board
22
blocks the cup
19
from entering. Referring to
FIG. 4
, a short cup
19
cannot be lifted up by the placing seat
26
and it cannot conveniently remove the cup
19
.
Accordingly, it is an object of the present invention to provide a sealing device for a disposable cup which can mitigate the drawbacks as shown above.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a sealing device for a disposable cup, wherein a through hole provided to a cup placing seat is provided with a hollow cylindrical body which can move upward and downward to simultaneously elevate or lower the cup placing seat, allowing user to access the cup for use.
An aspect of the present invention is to provide a sealing device for a disposable cup having a main body with a plurality of corresponding securing rods mounted at the two sides of the front thereof, and one side of the securing rod for mounting with a rolled film and a downward pulling-film end being surrounded to the securing rod and then being mounted onto the securing rod, a control box having a control panel being provided with a safety blocking plate beneath the control panel, a thermal pressing mechanism being mounted below the control box and the two side wall of the main body being engaged with a sliding rail having a front section being a holding platform, the center position of the holding platform being a through hole and the external edge of the through hole being a cup-placing seat, and the holding platform being connected to a transmission rod and the transmission rod caused the holding platform to move out from the main body or being pulled back to the main body characterized in that the lateral wall of the main body is located at the sliding rail and is provided with a block body having a forward elevating sliding slot and the cup holding seat is provided with a through hole and the through hole has a size smaller than a hollow cylindrical body, and the bottom face of the hollow cylindrical body is protruded with two protruded securing sections, having provided each with an elevating and lowering block for mounting, a vertical through hole is obtained at the elevating and lowering block, and the through hole is positioned at the two ends at the bottom face of the holding platform, and the bottom end of the cylindrical body has a larger surface and the external side of the elevating and lowering device has a shaft with pulley, when the holding platform is driven to/or away from the main body, the individual pulleys enter the sliding slot and cause the second hollow cylindrical body to move upward or downward, if the hollow cylindrical body moves upward, the sealed cups are lifted up and when at lowering, the edge of the cup is placed onto the through hole of the cup-placing seat to proceed with next sealing.
The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
REFERENCES:
patent: 3378991 (1968-04-01), Andersen
patent: 3628301 (1971-12-01), Vermeulen
patent: 3724161 (1973-04-01), Vermeulen
patent: 4092817 (1978-06-01), Rist, III
patent: 4226072 (1980-10-01), Balzer et al.
patent: 5272854 (1993-12-01), Ye et al.
patent: 5577370 (1996-11-01), Pajak et al.
Lei Leong C.
Sipos John
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