Plastic article or earthenware shaping or treating: apparatus – Stock pressurizing means operably associated with downstream... – Including additional rotating means downstream of the...
Reexamination Certificate
2001-01-08
2003-08-05
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Stock pressurizing means operably associated with downstream...
Including additional rotating means downstream of the...
C425S131100, C425S19200R, C425S461000, C425S462000, C425S465000, C425S466000
Reexamination Certificate
active
06602066
ABSTRACT:
TECHNICAL FIELD
This invention relates to an extruder for a formable material.
BACKGROUND
Formable materials (such as, for example, the popular Play-Doh® formable material) are used by children to form a variety of shapes and articles. Formable materials may be molded by hand or by molds. Additionally, extrusion devices may be used to mold formable materials into shapes and articles.
SUMMARY
In one general aspect, a toy includes a chamber having a longitudinal axis, a hollow interior, a first opening, and a second opening. The toy includes a die coupled to the first opening of the chamber, and an extruder positioned at the second opening of the chamber. A cavity is defined by the interior of the chamber, the first opening, and the extruder. The extruder is configured to rotate and to advance longitudinally through the chamber relative to the die. Rotation of the extruder causes the chamber and the formable compound received within the cavity to rotate relative to the die, and advancement of the extruder forces the rotating formable compound through the die.
Implementations may include one or more of the following features. For example, the toy may include a housing that includes a body, a first shelf extending from a first portion of the body, a second shelf extending from a second portion of the body, and a base that supports the body. The extruder may be mounted to the second shelf and able to move relative to the housing. The chamber may be positioned between the first shelf and the second shelf to receive the extruder and to rotate relative to the housing. The die may be positioned between the chamber and the first shelf and is stationary with respect to the housing. The second opening of the chamber may be coupled to the second shelf.
The toy may include a rotary device that causes rotation of the extruder. The rotary device may include a crank. The rotary device may include an electro-mechanical device.
The extruder may include a surface that contacts the formable compound received within the cavity, and a diameter of the cylindrical interior may be approximately the same as a diameter of the extruder surface. The extruder may include a screw.
In another general aspect, forming a formable compound includes coupling a first opening of a chamber to a die. The chamber has a longitudinal axis and a hollow interior. An extruder is received at a second opening of the chamber to define a cavity bound by the hollow interior, the extruder, and the first opening. Formable compound is received within the cavity. The extruder is advanced along the longitudinal axis of the chamber and the chamber and the formable compound are rotated relative to the die, such that movement of the extruder forces the formable compound through the die.
Embodiments may include one or more of the following features. For example, the received formable compound may have a first color. A formable compound of a second color may be received within the cavity.
The extruder may be mounted to a second shelf of a housing to permit movement of the extruder relative to the housing. The chamber may be positioned between the first shelf and a second shelf of the housing to receive the extruder and to rotate relative to the housing. The die may be positioned between the chamber and the first shelf, the die being stationary with respect to the housing.
Advancement of the extruder may include rotation of the extruder around the longitudinal axis. Advancement of the extruder may include rotating a rotary device attached to the extruder. The rotary device may include a crank. The rotary device may include an electro-mechanical device. Advancement of the extruder may include contacting a surface of the extruder to the formable compound.
The toy may be used to form ornamental twist extrusions. In particular, the toy may be used to form multi-colored twist extrusions by filling the cavity with two or more differently-colored formable compounds.
Other features and advantages will be apparent from the description and drawings, and from the claims.
REFERENCES:
patent: 2420616 (1947-05-01), Palmer
patent: 2578105 (1951-12-01), Taylor
patent: 3157933 (1964-11-01), Boggild et al.
patent: 3262404 (1966-07-01), Morz et al.
patent: 3264685 (1966-08-01), Boggild et al.
patent: 3685936 (1972-08-01), Meth et al.
patent: 3892510 (1975-07-01), Meth et al.
patent: 4014972 (1977-03-01), Rentz
patent: 4076476 (1978-02-01), Ventura
patent: 4569815 (1986-02-01), Rentz et al.
patent: 4815961 (1989-03-01), Kindred
patent: 4993932 (1991-02-01), D'Andrade
patent: 5183671 (1993-02-01), Perez
patent: 5409364 (1995-04-01), Schultheis et al.
patent: 5431866 (1995-07-01), DeMasters et al.
patent: 5891502 (1999-04-01), Heck et al.
Fish & Richardson P.C.
Hasbro Inc.
Leyson Joseph
Mackey James P.
LandOfFree
Extruder for formable materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extruder for formable materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extruder for formable materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3106265