Magnetic pay telephone cash box proximity switch
First Claim
Patent Images
1. A cash box switch arrangement for a public telephone, comprising a housing;
- and a non-contacting magnetic sensing device having a magnet moveably positioned within said housing and having a reed switch mounted on a flexible circuit removably positioned in a predetermined location relative to said magnet within said housing, said sensing device being operatively arranged within the housing to detect the presence or absence of a cash box in the public telephone.
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Accused Products
Abstract
A cash box proximity switch arrangement is provided for public telephones and is mounted in an upper portion of a lower housing of the telephone above the vault area. The switch is contained in a sealed housing which prevents contamination from dirt, moisture and the like. A magnet can be arranged so as to provide a bi-stable magnetic circuit between the floor of the lower phone housing and a cash box lid attached to a cash box which has been installed in the vault area of the telephone housing.
10 Citations
15 Claims
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1. A cash box switch arrangement for a public telephone, comprising a housing;
- and a non-contacting magnetic sensing device having a magnet moveably positioned within said housing and having a reed switch mounted on a flexible circuit removably positioned in a predetermined location relative to said magnet within said housing, said sensing device being operatively arranged within the housing to detect the presence or absence of a cash box in the public telephone.
- View Dependent Claims (2, 3)
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4. In a public telephone, the improvement comprising
a non-contacting magnetic sensing device having a magnet moveably positioned within said device and having a reed switch mounted on a flexible circuit removably positioned in a predetermined location relative to said magnet within said device, said sensing device being operatively arranged to detect the presence or absence of a cash box in the public telephone; - and
means for removably mounting the device within the public telephone. - View Dependent Claims (5, 6, 14, 15)
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7. A payphone cashbox switch arrangement, comprising
a housing and means in the housing for detecting the presence or absence of a thing responsive to one of magnetic flux movement and magnetic flux change, said means having a magnet moveably mounted within the housing and having a reed switch mounted on a flexible circuit removably positioned in a predetermined location relative to said magnet within the housing.
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12. A method of assembling a payphone cashbox switch arrangement, comprising the steps of
forming a flexible circuit having a reed switch into a U-shaped part; -
positioning the U-shaped flexible circuit in a cavity of a housing unit; and placing a gasket in the housing unit to contact a formed lead of the reed switch associated with the flexible circuit and position the reed switch in a predetermined location in the housing unit relative to an adjacent magnet. - View Dependent Claims (13)
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Specification