Apparatus for accepting and retaining an information card

• US 5,325,429 A
• Filed: 06/08/1992
• Issued: 06/28/1994
• Est. Priority Date: 06/08/1992
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Kurgan, Jeffery F.
• Primary Examiner(s): Dwyer, James L.
• Assistant Examiner(s): Chiang, Jack
• Application Number:
  US07/894,873
• Time in Patent Office: 750 Days
• Field of Search: 379/58, 379/429, 235/475, 235/476, 235/477, 235/478, 235/479, 235/480, 235/481, 235/482, 235/483, 235/492, 235/441, 235/486
• US Class Current: 379/429
• CPC Class Codes: G06K 7/0021 for reading/sensing record carriers having surface contacts
• CPC Class Codes: G06Q 20/346 Cards serving only as information carrier of service
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
• CPC Class Codes: H04B 1/3816 Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/0274 for an electrical connector module

Abstract

The present patent application discusses a low profile information card chamber (107) used in a radiotelephone (101). The information card chamber accepts, retains and makes electrical contact to an information card (105). The information card chamber (107) makes electrical contact to the information card when the information card is properly inserted (105). The electrical contacts are located on the lower platform (213) of the information card chamber (107). Upon inserting the information card (105) into the information card chamber (107), the information card (105) is translated away from the electrical contacts (205). Prior to being fully inserted, the information card (105) is translated towards the electrical contacts (205). The two translational devices allow an information card (105) to be inserted into the information card chamber (107) without excessive wiping of the electrical contacts (205) by the information card (105).

Claims

1. An information card chamber for accepting, retaining and making electrical contact to an information card, the information card chamber having at least a first and a second platform, the first platform raised from the plane of and substantially parallel to the second platform, the information card chamber comprising:

means for making electrical contact to the information card when the information card is properly inserted, said means for making electrical contact disposed only on a first side of the first platform;

first means for translating the information card away from said means for making electrical contact while said information card is inserted, said first means disposed only on said first side of the first platform; and

second means for translating the information card towards said means for making electrical contact while said information card is inserted, said second means fixedly disposed only on a first side of the second platform.

2. An information card chamber in accordance with claim 1 further comprising third means for translating a first end of the information card away from said means for making electrical contact, such that the information card makes proper contact to said means for making electrical contact when the information card is properly inserted.

3. An information card chamber for accepting, retaining and making electrical contact to an information card, the information card chamber having at least a first and a second platform, the first platform raised from the plane of and substantially parallel to the second platform, the information card chamber comprising:

a first set of electrical contacts including at least one electrical contact, said first set of electrical contacts partially exposed on a first side of the first platform, such that said first set of electrical contacts makes electrical contact to the information card when the information card is properly inserted;

a first cantilevered spring coupled to said first side of the first platform, translating said information card away from said first set of electrical contacts, said first cantilevered spring having a first predetermined spring constant (k₁); and

a second cantilevered spring coupled to a first side of the second platform, translating said information card towards said first set of electrical contacts, said second cantilevered spring having a second predetermined spring constant (k₂).

4. An information card chamber in accordance with claim 3 wherein said second predetermined spring constant (k₂) is greater than said first predetermined spring constant (k₁).

5. An information card chamber in accordance with claim 3 wherein the information card chamber further comprises a third cantilevered spring disposed on said first side of the first platform, translating a first end of said information card such that every electrical contact of said first set of electrical contacts makes electrical contact to the information card when the information card is properly inserted.

6. An information card chamber in accordance with claim 5 wherein said third cantilevered spring has a third predetermined spring constant (k₃) and said third predetermined spring constant (k₃) is less than said second predetermined spring constant (k₂).

7. An information card chamber in accordance with claim 3 wherein said information card chamber further comprises a first inclined plane coupled said first side of the first platform, translating a first end of said information card such that every electrical contact of said first set of electrical contacts makes electrical contact to the information card when the information card is properly inserted.

8. A radiotelephone including a microprocessor and an information card chamber disposed within a radiotelephone housing, the information card chamber for accepting, retaining and making electrical contact to an information card, the radiotelephone comprising:

a first set of electrical contacts, each contact having a first and a second end, said first end of each contact coupled to the microprocessor disposed within the radiotelephone housing, said second end of each contact exposed within the information card chamber, such that said first set of electrical contacts makes electrical contact to the information card when the information card is properly inserted;

first means for translating the information card away from said first set of electrical contacts while said information card is inserted; and

second means for translating the information card towards said first set of electrical contacts while said information card is inserted, said second means fixedly disposed within the information card chamber.

9. A radiotelephone in accordance with claim 8 further comprising third means for translating a first end of the information card away from said means for making electrical contact, such that the information card makes proper contact to said means for making electrical contact when the information card is properly inserted.

10. A radiotelephone in accordance with claim 8 wherein the information card chamber comprises at least a first and a second platform, said second platform raised from and substantially parallel to said first platform.

11. A radiotelephone in accordance with claim 10 wherein said first means for translating further comprises a first cantilevered spring coupled to a first side of the first platform, translating said information card away from said first set of electrical contacts, said first cantilevered spring having a first predetermined spring constant (k₁).

12. A radiotelephone in accordance with claim 11 wherein said second means for translating further comprises a second cantilevered spring coupled to a first side of the second platform, translating said information card towards said first set of electrical contacts, said second cantilevered spring having a second predetermined spring constant (k₂).

13. A radiotelephone in accordance with claim 12 wherein said second predetermined spring constant (k₂) is greater than said first predetermined spring constant (k₁).

14. A radiotelephone in accordance with claim 13 further comprising a third cantilevered spring disposed on a first side of the first platform, translating a first end of said information card such that every electrical contact of said first set of electrical contacts makes electrical contact to the information card when the information card is properly inserted.

15. A radiotelephone in accordance with claim 14 wherein said third cantilevered spring has a third predetermined spring constant (k₃) and said third predetermined spring constant (k₃) is less than said second predetermined spring constant (k₂).