Special receptacle or package – For holding a machine readable recording medium – For holding an optical disc
Reexamination Certificate
1999-10-13
2001-01-09
Foster, Jim (Department: 3728)
Special receptacle or package
For holding a machine readable recording medium
For holding an optical disc
C206S310000
Reexamination Certificate
active
06170656
ABSTRACT:
The present invention refers to a case for magnetic recording supports disc-shaped in formats such as digital video discs (DVD) or compact discs (CD) and the like that have an improved disc hold/release device.
Diverse cases of this type are known at the moment, the most known up to now being the CD cases for audio and data and software.
According to the state of the art, these cases include in their central part a projecting formation for a fitted or firm holding of the disc through its central orifice. This projecting formation is biased by compression, so that the disc can be released from its fitted holding, by exercising a pressure on the said projection.
As will be understood by the skilled in the art, a projecting formation according to the above said has a structure that is perfectly adapted to be manufactured in molding processes of the plastic materials that make up the walls of the case in an integral way with said walls.
Through ES-U-9800126 also in the name of the applicant, known is a case of this type where a pulse button with some L-shaped side branches is provided, as well as some holding teeth with pointed form with entry and exit angles with different and appropriate inclinations to obtain the release of the disc in cooperation with some circumferential projections for the support of the external edge in a slightly flexed mode in a radial direction.
According to diverse tests, the applicant has reached the conclusion that a configuration in L-shape of the side branches as is described in the prior art, has as a disadvantage that the areas for connection or transition of the side branches and the bottom wall of the case, may present after a specific number of taps on the button, plastic deformations, that is to say a non-recovery of the material, so that after a prolonged use the operation of the holding and releasing device may be damaged.
The purpose of the present invention is to develop a device of the type above said that allows solving the said disadvantage in order to obtain a lasting and safe-usage device.
This task is reached from a case according to the preamble of the first claim, and in which, according to the invention, the side branches that connect the button to the bottom wall of the case have a first portion at the vicinity of the button, generally at a right angle and a second portion that extends to the bottom wall of the case forming an acute angle with it lower than 30°.
With this simple measure, the material of the side branches in the above said areas for transition or connection to the button and bottom wall, do not undergo permanent plastic deformations that damage the long-lasting operation.
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patent: 5685425 (1997-11-01), Choi
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patent: 5896986 (1999-04-01), Bolognia et al.
patent: 97/41563 (1997-11-01), None
Cerda-Torres Ruben
Cerda-Vilaplana Gustavo
Adams, Schwartz & Evans P.A.
Foster Jim
Magnetic Imatge, S.A.
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