Receptacles – Receptacle having means to facilitate maintaining contents... – For a beverage
Reexamination Certificate
1999-05-28
2001-01-09
Newhouse, Nathan J. (Department: 3727)
Receptacles
Receptacle having means to facilitate maintaining contents...
For a beverage
C220S256100, C220S713000
Reexamination Certificate
active
06170693
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a drinking receptacle consisting essentially of a receptacle main body having heat-insulating function and an inner cover which has a drinking spout and which is to be applied to the top of the receptacle main body.
DESCRIPTION OF THE RELATED ART
A metallic drinking receptacle disclosed, for example, in Japanese Unexamined Patent Publication No. 251854/1995 consists essentially of a receptacle main body having an inner shell, an outer shell and a heat-insulating section defined between the !inner shell and the outer shell; and a cover which has a drinking spout and which is removably applied to the top of the receptacle main body. This cover has a cover plate which covers an upper opening of the receptacle main body and a side wall formed to surround the cover plate, with a drinking spout and an air vent being defined in the cover plate.
However, since the drinking spout and the air vent are normally unclosed, a drink in the receptacle spills out unless the drinking receptacle is carried upright, making it inconvenient to carry with. Further, since the drinking spout is uncovered, dusts and the like readily deposit on and around it. In addition, since air and the like flow in and out through the drinking spout and air vent, and since the cover has no heat-insulating function, it is difficult to maintain the temperature of the drink in the drinking receptacle.
SUMMARY OF THE INVENTION
It is an objective of the present invention to provide a drinking receptacle which has excellent portability and is free from deposition of dusts and the like on its cover having a drinking spout and which has improved heat-insulating. performance.
The drinking receptacle according to the present invention consists essentially of a receptacle main body containing an inner shell, an outer shell and a heat-insulating section defined between the inner shell and the outer shell; and an inner cover to be removably applied to the top of the receptacle main body. The inner cover has a drinking spout on its cover plate covering the upper opening of the receptacle main body, and an outer cover is removably applied to the inner cover to cover the cover plate. The outer cover and the inner cover are sealed from each other by a water-sealing structure.
Accordingly, the drinking receptacle is convenient to carry with since the water-sealing structure prevents the drink from spilling out even if the drinking receptacle is tilted in any direction. Further, since the cover plate is covered with the outer cover unless the drink is to be drunk, the drinking receptacle is hygienic with no deposition of dusts and the like on and around the drinking spout.
Meanwhile, if the cover plate is tilted, it allows the drink flowed out onto the upper surface of the cover plate to return through the drinking spout located at the lower side of the tilted cover plate into the receptacle main body, when the drinking receptacle is set upright, to leave no drink on the upper surface of the cover plate.
If the outer cover has heat-insulating function, the temperature of the drink in the receptacle can be maintained to give high heat-insulating performance.
Other aspects and advantages of the invention will become apparent from the following description, taken in conjunction with the accompanying drawings illustrated by way of examples the principles of the invention.
REFERENCES:
patent: 5253780 (1993-10-01), Adado
patent: 5456380 (1995-10-01), Ito et al.
patent: 5477979 (1995-12-01), Goessling et al.
patent: 5680951 (1997-10-01), Feltman, III et al.
patent: 5918761 (1999-07-01), Wissinger
patent: 7-251854 (1995-10-01), None
Armstrong, Westerman Hattori, McLeland & Naughton
Newhouse Nathan J.
Nippon Sanso Corporation
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