초록 ▼

A leak-free drinking beaker comprises a container as well as a lid closing the container, a drink opening which opens into the interior of the container, and a valve extending over the drink opening, which valve is held in the closed position under a certain pretension and can be released against sa

A leak-free drinking beaker comprises a container as well as a lid closing the container, a drink opening which opens into the interior of the container, and a valve extending over the drink opening, which valve is held in the closed position under a certain pretension and can be released against said pretension under the influence of a pressure difference. The valve is a double-acting non-return valve and comprises a flexible valve element and two separate valve seats, the valve element and one of the valve seats has a blocking action in a direction opposed to the direction in which the valve element has a blocking action with the other valve seat.

대표청구항 ▼

A leak-free drinking beaker comprises a container as well as a lid closing the container, a drink opening which opens into the interior of the container, and a valve extending over the drink opening, which valve is held in the closed position under a certain pretension and can be released against sa

A leak-free drinking beaker comprises a container as well as a lid closing the container, a drink opening which opens into the interior of the container, and a valve extending over the drink opening, which valve is held in the closed position under a certain pretension and can be released against said pretension under the influence of a pressure difference. The valve is a double-acting non-return valve and comprises a flexible valve element and two separate valve seats, the valve element and one of the valve seats has a blocking action in a direction opposed to the direction in which the valve element has a blocking action with the other valve seat. nding being sized and dimensioned to biasedly engage a corresponding surface of a fuel receiving assembly to provide electrically conductive engagement of said retainer with a fuel receiving assembly. 6. A fuel cap for engaging a fuel receiving assembly to removably seal a fuel port defined by a fuel receiving assembly, a fuel cap including a handle and a fuel port closure having a seal generally retained on said cap between said fuel port closure and an electrically conductive retainer, at least a portion of said handle and said cap being electrically conductive, said electrically conductive retainer being attached to said cap and contacting said conductive portion of said cap for providing an electrically conductive path from said handle to said retainer, said fuel port closure being sized and dimensioned for engaging at least an internal surface of a fuel receiving assembly, said retainer being adapted for flexibly and conductively contacting a conductive portion of an external surface of a fuel receiving assembly as said fuel cap is being disengaged and as vapors are permitted to escape between said cap and a fuel receiving assembly. 7. The cap of claim 6 wherein said fuel port closure is spaced from said handle and said seal is generally positioned between said fuel port closure and said handle, said retainer being attached to said handle and spaced from said seal and said fuel port closure. 8. The cap of claim 6 further comprising said retainer being spaced from said seal for receiving a portion of a fuel receiving assembly therebetween, said retainer and seal being sized and dimensioned for maintaining engagement of said seal with a fuel receiving assembly prior to disengagement of said retainer from a fuel receiving assembly. 9. The cap of claim 6 wherein said retainer includes an inwardly extending engaging portion which biasedly engages a portion of a fuel receiving assembly for maintaining a conductive electrical contact therebetween. 10. The cap of claim 6 wherein said retainer includes a plurality of fingers generally inwardly radially extending being sized and dimensioned to biasedly engage a corresponding surface of a fuel receiving assembly to provide electrically conductive engagement of said retainer with a fuel receiving assembly. 11. A method of establishing a common electrical potential and preventing escape of fuel vapors from a fuel port prior to establishing said common electrical potential, said method comprising the steps of: providing a fuel receiving assembly defining a fuel port, providing a fuel cap for engagement with and covering of said fuel port, providing an electrically conductive retainer coupled to said fuel cap, providing a handle on said fuel cap, at least a portion of said handle and said fuel cap being electrically conductive, providing a fuel port closure for engaging said fuel receiving assembly, providing a seal on said fuel cap for sealing said fuel port when said fuel cap is engaged with at least a portion of said fuel receiving assembly, sealing said fuel port when said cap is engaged with said fuel receiving assembly, establishing a common electrically conductive path from said handle to said electrically conductive retainer and between said electrically conductive retainer and an electrically conductive portion of said fuel receiving assembly, maintaining an electrically conductive path from said handle to said electrically conductive retainer and between said electrically conductive retainer and said electrically conductive portion of said fuel receiving assembly, and disengaging said seal between said fuel cap and said fuel receiving assembly and maintaining the electrically conductive path from said handle to said fuel receiving assembly at least until fuel vapor has been permitted to escape between said fuel cap and said fuel receiving assembly. 12. A fuel cap for engaging a fuel receiving assembly to removably close a portion of the fuel receiving assembly, t