Agitating – Mixing chamber removable from stirrer and support – Stirrer mounted through mixing chamber bottom wall
Reexamination Certificate
2001-09-04
2003-04-01
Cooley, Charles E. (Department: 1723)
Agitating
Mixing chamber removable from stirrer and support
Stirrer mounted through mixing chamber bottom wall
C366S206000, C241S037500
Reexamination Certificate
active
06540394
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a kitchen appliance having a housing and a motor which is accommodated in the housing; having protection means for the motor accommodated in the housing; and having a container, which can be placed onto the housing and is removable from the housing. The container contains a derivable tool and can be closed by means of a cover, and has control means, which cooperate with the cover and aid in controlling the protection means of the kitchen appliance.
The invention further relates to a container for a kitchen appliance, which container has the features outlined briefly above.
Such a kitchen appliance and such a container are known from the patent document U.S. Pat. No. 5,567,049 A. In the known kitchen appliance the cover of the container must be placed onto the container in a comparatively accurate angular position relative to the container and must be pressed down onto the container parallel to the height direction of the container, in order to guarantee that the cover is locked to the container with the aid of a snap-on latching hook. This process requires a comparatively precise manipulation. A first coupling device couples the cover to the control means. Furthermore, the construction of the known kitchen appliance is such that the first coupling device has an arm which is led out of the cover towards the container, as a result of which this projecting arm is relatively likely to be damaged once the cover has been removed.
In the known kitchen appliance the arm of the first coupling device cooperates with a control slide provided in the handle portion of the container. The control slide forms the control means, and is adapted and arranged to cooperate with a safety slide. The safety slide forms a part of the protection means of the known kitchen appliance and is led through an upper wall of the housing of the known kitchen appliance. In the known kitchen appliance the safety slide is spring-loaded with the aid of a pressure spring, as a result of which the control slide, which is disposed in the container, is also spring-loaded by said pressure spring when the container is placed on the kitchen appliance.
In the known kitchen appliance the construction outlined above leads to the situation that with the aid of the force exerted on the control slide via the arm of the first coupling means, i.e. ultimately the force exerted on the cover by the user, the control slide provided as control means is actuated compulsively (that is, is forced to move) when the cover is brought into its closed position. With the aid of the safety slide, which projects from the kitchen appliance, the control slide is actuated by the force of the pressure spring when the cover is removed.
This construction creates the problem that the area where the safety slide projects from the housing of the known kitchen appliance may become soiled comparatively easily, which soiling in an unfavorable case may even extend up to the pressure spring provided as the return spring. As a result of this soiling it is no longer guaranteed that the safety slide is movable into its locking position by means of the force of the pressure spring. This leads to the disadvantage that in spite of the removal of the container from the known kitchen appliance, the safety slide is in its disengaging position and thus driving of the motor continues despite the removal of the container from the kitchen appliance. This result is unsafe and undesirable.
BRIEF SUMMARY OF THE INVENTION
It is an object of the invention to preclude the aforementioned problems and to provide an improved kitchen appliance and an improved container for a kitchen appliance.
In order to achieve the aforementioned object, characteristic features in accordance with the invention have been provided in a kitchen appliance in accordance with the invention. In such a kitchen appliance the container has control means, which are movable between a rest position and an active position and which are coupled to the cover via first coupling means and are coupled to the protection means via second coupling means. The first coupling means are arranged such that as a result of a movement of the cover from its open position into its closed position the control means are compulsively moved from their rest position into their active position by means of the force exerted on the control means by the cover via the first coupling means; and such that as a result of a movement of the cover from its closed position into its open position the control means are compulsively moved from their active position into their rest position by means of the force exerted on the control slide by the cover via the first coupling means.
The second coupling means is arranged such that as a result of a movement of the container from its placement position into its operating position the protection means are compulsively moved from their locking position into their disengaging position, and such that as a result of the movement of the container from its operating position into its placement position the protection means are compulsively moved from their disengaging position into their locking position.
In order to achieve the aforementioned object characteristic features in accordance with the invention have been provided in a container in accordance with the invention, in such a manner that a container in accordance with the invention can be characterized in the manner defined hereinafter, namely:
A container for a kitchen appliance, which container serves to hold a substance to be processed and which is adapted to be placed onto a housing of the kitchen appliance in the area of a housing wall of the housing and which by its placement onto the housing can be brought into a placement position on the housing and which is adapted to be movable from its placement position into an operating position and vice versa, in which operating position it is also disposed on the housing of the kitchen appliance in the area of the housing wall, and which contains a derivable tool for processing a substance present in the container, which tool, and which can be closed by means of a removable cover, which cover is movable relative to the container between an open position and a closed position, and which has control means, which are movable between a rest position and an active position and which are coupled to the cover via first coupling means and which, moreover, can be coupled to protection means of the kitchen appliance via second coupling means, in which the first coupling means have a construction which is such that as a result of a movement of the cover from its open position into its closed position the control means are compulsively movable from their rest position into their active position by means of the force exerted on the control means by the cover via the first coupling means, and in which the first coupling means further have a construction which is such that as a result of a movement of the cover from its closed position into its open position the control means are compulsively movable from their active position into their rest position by means of the force exerted on the control slide by the cover via the first coupling means, and in which the second coupling means have a construction which is such that as a result of a movement of the container from its placement position into its operating position the protection means are compulsively movable from their locking position into their disengaging position, and in which the second coupling means further have a construction which is such that as a result of the movement of the container from its operating position into its placement position the protection means are compulsively movable from their disengaging position into their locking position.
Owing to the provision of the measures in accordance with the invention it is achieved in a simple and cost-effective as well as space-saving manner that both during the movement of the cover from its open position into its closed position and during the move
Bartlett Ernestine C.
Cooley Charles E.
Koninklijke Philips Electronics , N.V.
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