Foods and beverages: apparatus – Means to treat food – By isolating a fluid constituent
Reexamination Certificate
2000-06-22
2001-10-02
Simone, Timothy F. (Department: 1761)
Foods and beverages: apparatus
Means to treat food
By isolating a fluid constituent
C099S501000, C099S506000, C099S581000, C100S125000, C100S213000, C100S231000
Reexamination Certificate
active
06295921
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The juice extractor for citrus fruits is designed for extracting the juice from citrus fruits in kitchens. restaurants, etc.
2. Description of the Prior Art
The already existing juice extractors, described in U.S. Pat. Nos. 4,961,374; 2,090,913; 2,177,939; 2,220,372, consist of a body; a cone-shaped lower bearing member attached to the upper part of the body; a lower cone-shaped fruit holder placed over the lower cone-shaped bearing member: an upper cone-shaped fruit holder, attached to an oval moving pressing member which is put in motion by a vertical rack member. The rack member passes through an opening in the body where it combines with a gear. The gear is put in motion by a shaft member, attached to a handle. There are also known devices of this kind with console attachment of the working elements. ratchet incorporated into the moving mechanism etc., but in common to all existing models, the multiplication of the hand force is performed by a rack member and a gear member. The kinematics connection of the rack and gear members and the limitations of the size of the gear member restricts the maximum strength of the pressing part. This limits the application of the existing models of juice extractors, making difficult the extraction from such fruits as grapefruits or cutting potatoes. In addition to the above mentioned limitations, small parts of the fruit pulp pass through the holes on the lower fruit holder and diminish the quality of the juice.
SUMMARY OF THE INVENTION
Subject of this invention is the improvement of the juice extractor, obtained by replacing the hard kinematics connection by a glissade connection
By this replacement, an unlimited length of the movement of the pressing part, is reached without changing the necessary force. The change in the geometry of the leverage system enlarges the potential fields of application of the juice extractor. It makes possible the usage of the device for other purposes requiring greater strength like cutting potatoes and apples, or can smashing. This is made possible, because the pressure of the pressing device can reach over 1000 kg.
Another subject of this invention is the better quality of the extracted juice obtained by changing the shape of the lower fruit holder and the placement of a perforated cone-shaped extractor over it.
Another subject of this invention is the attachment of the upper fruit holder that allows easier removing for washing.
According to this invention, the juice extractor consists of a base; a vertical carrying column attached to the base; a cylindrical element, console attached to the column; a cone-shaped juice collector placed over the inner step of the cylindrical element; a lower step-cone shaped fruit holder with a tore-shaped juice collecting canal in its lower part with holes on the two lower steps and the tore-shaped canal; a perforated cone-shaped vessel, placed over the lower fruit holder; an upper fruit holder, attached to the lower flange of the pressing pipe of the pressing device; a pressing device console attached to the upper part of the supportive column, consisting of attaching sleeve member, a hollow body, a rib attaching these two details, a pressing pipe, a spring, a frictional washer, a springing element, a stop washer, a stop mechanism, a lid and an air-cushioned mechanism. The pressing pipe passes through the center of the hollow body. Over the lower flange of the hollow body is placed the spiral spring, and above it there is a frictional washer with asymmetrically placed hole in it and horizontal cylindrical axis at its opposite side. Over this washer is placed the springing element; the stop washer placed axially over the springing element; the semi-cylindrical stopping part, passing radial through the wall of the hollow body with a handle on its outer side. Over the upper flange of the hollow body is mounted the lid, and through its central opening passes the pressing pipe. Over the lower flange of the lid there is a radial semi-cylindrical canal equal to the diameter of the stopping part. Over the upper flange of the lid axially to the pressing pipe is located the cylinder of the air-cushioned mechanism. Over the upper side of he cylinder of the air-cushioned mechanism is placed a lid. Through the inner opening of the pressing pipe passes the spiral spring attached in its lower side to a fixed peg and in its upper side to the lid of the cylinder of the air-cushioned mechanism. Over the rib connecting the body and the attaching sleeve member of the pressing device is placed horizontal cylindrical hinge, attached to the handle. On the handle, parallel to the above mentioned hinge, is placed cylindrical axis connecting the hinge with the cylindrical axis of the frictional washer.
A variant of the described construction exists with an eccentric sleeve member in the back opening of the handle. This enables the change of the leverage system geometry.
REFERENCES:
patent: 2090913 (1937-08-01), Johnson
patent: 2177939 (1939-10-01), Johnson
patent: 2183804 (1939-12-01), Bloomfield
patent: 2220372 (1940-11-01), Johnson
patent: 2703522 (1955-03-01), Smith
patent: 4961374 (1990-10-01), Lee
patent: 2545017 (1977-04-01), None
patent: 4333140 (1977-04-01), None
Abrahams Colin P.
Simone Timothy F.
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