Coin retrieval device for a pay phone

Deposit and collection receptacles – Closures and chutes – Coin trap

Reexamination Certificate

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Details

C232S058000, C379S145000, C194S351000

Reexamination Certificate

active

06286755

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a coin retrieval device for a pay phone, which has a retrieval lever to open the jammed passage to allow the coin drop and the user can access the coin.
BACKGROUND OF THE INVENTION
A conventional pay phone or a game machine generally includes a coin box with a coin slot for users inserting coins in the coin slot to actuate pre-determined device of the machine. A passage is connected to the slot and leads the coin to a distinguish device which is located below the passage and distinguishes the coin according to its weight or size. When the passage is jammed by an object that is larger than the passage or cannot fit the size of the passage, the passage is jammed and no coin can reach the distinguish device. However, the users do not have any idea about the jam in the passage and another coin is inserted into the slot. Because the passage is stocked by the object so that the coin cannot drop into the coin-return assembly. It the object is stocked at a deep position of the passage, there will be many users insert their coins into the slot and cannot take them back. Besides, the passage usually is a straight passage that makes the coin drop at a relative high speed and the coin could enter the coin-return assembly directly, thereby failing to properly actuate the machine.
The present invention intends to provide a coin retrieval device that has a retrieval lever connected with a jam plate which will close the coin slot when pulling the retrieval lever. Therefore, no coin can be inserted into the coin slot.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a coin retrieval device for a pay phone and comprising a panel having a retrieval lever pivotably connected thereto. A guide means is pivotably connected to the panel and includes a guide plate having an end plate extending laterally therefrom and a jam plate pivotably connected to the end plate of the guide plate. A gap is defined between the guide plate and the jam plate. A coin slot is defined through the guide plate and communicates with the passage. A torsion spring is mounted to one of two pivotal pins of the guide means. One end of the second torsion spring is connected to the retrieval lever and the other end of the second torsion spring is connected to the guide plate so that the guide means is pivoted relative to the panel by lifting the retrieval lever. A distal end of the jam plate is pivoted toward the coin slot when the jam plate is pivoted relative to the guide plate so as to prevent from any coin inserted in the coin slot.
The object of the present invention is to provide a coin retrieval device that automatically closes the coin slot when the passage is jammed by an object.
Another object of the present invention is to provide a coin retrieval device that allows the user to retrieve the coin by lifting a retrieval lever of the device.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.


REFERENCES:
patent: 5018193 (1991-05-01), DeArkland
patent: 5483583 (1996-01-01), Chen
patent: 5704463 (1998-01-01), Morales
patent: 5871076 (1999-02-01), Anello et al.
patent: 6031901 (2000-02-01), Su
patent: 6076650 (2000-06-01), Schwarzli

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