Receptacles – Closures – With condition responsive vent or valve
Reexamination Certificate
1999-09-29
2001-03-20
Newhouse, Nathan J. (Department: 3727)
Receptacles
Closures
With condition responsive vent or valve
C220S912000, C116S13700R, C116S070000, C099S344000
Reexamination Certificate
active
06202875
ABSTRACT:
BACKGROUND OF THE INVENTION
a) Technical Field of the Invention
The present invention relates to a whistling device of a cooker lid and in particular, to a handle block mounted onto a cooker lid to adjust the size of an air hole on the lid and the sound produced. A steel bead or a whistle is placed in a screw cork to produce a whistling sound and the adjustment of the handle block of the cooker lid can control the volume of the sound and the amount of hot air released from a cooker.
b) Description of the Prior Art
Recently, various types of safety devices and alarming devices are provided to cooking utensils in order to provide safety and convenience to the user. Frequently, a whistle is provided to the cooker lid so that the hot air produced during cooking provides an alarming sound to alert the user. However, for cooker lids having a glass window, no whittling device is provided as a result of its complicated structure. There is only an air vent provided on the cooker lid. If a whistling device is to be mounted onto the glass mounted cooker lid, the structure of the whistling device may be very complicated and expensive to manufacture.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a whistling device of a cooker lid, wherein
(a) the cooker lid is circular having a center opening allowing the screw cork to pass through it and then fix to a screw hole of a protrusion at the bottom of the handle block, an annular rim at the bottom of the screw cork urges the circumference of the center opening;
(b) the screw cork has a center projection having a venting hole along the projection and at the center thereof and the outer surface of the projection is threaded such that the screw cork can pass through the center opening, two air-guiding slots are provided along the inner wall of the venting hole such that a steel bead within the venting hole will not block the venting hole but air can be released through the guiding slots, the size of the venting hole is adaptable for a steel bead or a whistle, and the steel bead is used to control the volume of sound produced by the released air from the cooker and control the time of cooking, the bottom of the screw cork is provided with an recess facilitating the mounting of the screw cork or dismantling of the screw cork, hot air is passed to a guiding hole at the lateral wall of the protrusion via the venting hole;
(c) the annular block is circular and has a circular opening, the size of the opening is adaptable for the protrusion at the bottom of the handle block, and an air hole is corresponding to the guiding hole at the lateral wall of the protrusion, the air hole aligns with an air outlet at the lateral wall of the handle block and a protruded arch is provided along the circumference of the annular block and at the top of the air hole, the arch can be mounted to an arch-shaped slot which is provided at the top of the air outlet, the arch is moveable along the arch-shaped slot to allow opening or releasing of the air outlet; and
(d) a handle block has an arch-shaped handle diametrically mounted across the edge of the handle block the air outlet is provided at lateral wall of the handle block and the arch-shaped slot is provided at the top of the air outlet, such that the protruded arch can be inserted into and moveable along the slot, the protrusion is provided at the center, bottom of the handle block, and the screw hole (refer to
FIG. 6
) is provided to the protrusion for the mounting of the screw cork, the lateral wall of the protrusion is provided with the guiding hole and the guiding hole is corresponding to the air hole at the annular block.
It is another object of the present invention to provide a whistling device of a cooker lid which can mitigate the drawbacks of the conventional cooker lid with alarming device.
The various features of novelty which characterize the invention are pointed out with particularity in the claim annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects obtained by its uses, references is made to the accompanying drawings and descriptive matter in which preferred embodiment of the invention is illustrated.
REFERENCES:
patent: 4418637 (1983-12-01), Heermans
patent: 4586455 (1986-05-01), Shibata
patent: 4690095 (1987-09-01), Walls et al.
patent: 4776296 (1988-10-01), Heermans
patent: 4857897 (1989-08-01), Chen
patent: 5471912 (1995-12-01), Lin
patent: 6004000 (1999-12-01), Hupf et al.
A & J
Newhouse Nathan J.
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