Handling: hand and hoist-line implements – Detachable lifter – Sliding graspers
Reexamination Certificate
2000-08-22
2001-11-20
Lillis, Eileen D (Department: 3652)
Handling: hand and hoist-line implements
Detachable lifter
Sliding graspers
C220S759000
Reexamination Certificate
active
06318776
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to tongs for holding and moving a cooking container such as a fry pan, a pot and the like and more particularly, to tongs for holding a cooking container in a safe manner, upon moving the cooking container being in a heating state, without being exposed to danger of burns.
2. Description of the Related Art
Various kinds of tongs or clamping instruments are developed in order to move cooking containers in a heating state or cooking containers where other contents are contained, all of which are difficult in being held in accordance with the cooking states of the cooking containers irrespective of existence
on-existence of their bails. Generally, an instrument for holding the cooking container includes a body being of a bar shape adequate to be held by one hand of a user, a rotary lever adapted to be inserted and drawn in upward and downward directions into/from the interior and exterior of a space portion formed in the body, and a holding member moving forwardly and backwardly on the front portion of the body by using the rotation of the lever, for holding and releasing the cooking container. Additionally, the instrument for holding the cooking container further includes a locking device for rigidly holding the cooking container in the state where the lever is inserted into the space portion.
Under the above construction, the conventionally developed instruments for holding the cooking container have been mainly focused to any one of the following factors: the convenience in use (that is, the manipulation by one hand or both hands), the complexity of the whole configuration, the rigidity of the holding of the cooking container, the accuracy in operation of the locking device and so on. Therefore, various endeavors for holding and moving in a safe manner the cooking container by the easy and stable manipulation of the cooking container holding instrument upon holding and releasing of the cooking container are made and will be unceasingly tried.
SUMMARY OF THE INVENTION
It is, therefore, an object of the present invention to provide tongs for holding a cooking container capable of holding and releasing the cooking container in a complete manner, thereby holding and moving the cooking container in a safe manner.
It is another object of the present invention to provide tongs for holding a cooking container capable of constructing a power transmission device for converting a rotating force of an operating lever into a rectilinear motion of a movable member with on the one hand, a rotary disc and a rail for guiding the movement of the rotary disc and on the other hand, a pair of gears being engaged and rotated, thereby ensuring the reliability of the power transmission and the endurance of the loading caused due to the holding of the cooking container.
To attain these and other objects of the present invention, there is provided tongs for holding a cooking container including: a body being of a shape adequate to be held by one hand and extending by a predetermined length in a longitudinal direction thereof, the body having a fixed holding part being in contact with the high-cut outer peripheral wall of the cooking container at the end portion thereof and a receiving chamber formed in the interior thereof; a movable member having a movable holding part being in contact with the high-cut inner peripheral wall of the cooking container at the end portion thereof in order to hold the cooking container in co-operation with the fixed holding part of the body, the movable member received within the receiving chamber and having one end connected to a spring means installed in the body, thus to be disposed within the body forwardly and backwardly relative to the fixed holding part; an operating lever supported rotatably on the body at the one end thereof, thus to be inserted and drawn into/from the interior and exterior of the receiving chamber; and a power transmission device having a rotary member and a guide member, the rotary member and the guide member converting a rotating force of the operating lever into a rectilinear motion of the movable member, in co-operation with each other, as the operating lever is inserted into the receiving chamber, for moving the movable member into the interior of the receiving chamber to be engaged with the high cut portion of the cooking container, thereby holding the cooking container in co-operation with the fixed holding part and the movable member; whereby as the operating lever is drawn from the receiving chamber, the co-operating relationship of the rotary member and the guide member is released and by the recovering force of the spring means, the movable member moves forwardly relative to the fixed holding part, thus to release the holding state of the cooking container.
REFERENCES:
patent: 2077273 (1937-04-01), Serio
patent: 2228547 (1941-01-01), Whitehead
patent: 2777725 (1957-01-01), Weir
patent: 3304112 (1967-02-01), Elliott
patent: 3474486 (1969-10-01), Morris et al.
patent: 4241946 (1980-12-01), Spoeth, Jr.
patent: 4577367 (1986-03-01), Durand
patent: 5704092 (1998-01-01), Nicollet et al.
patent: 6000100 (1999-12-01), Montgelard
patent: 1279608 (1986-12-01), None
Cha Steve
Chin Paul T.
Klauber & Jackson
Lillis Eileen D
Sung Chang Mart Co., Ltd.
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