Selector adaptor for converting a cellular phone to a bag phone

• US 5,423,083 A
• Filed: 02/14/1994
• Issued: 06/06/1995
• Est. Priority Date: 02/14/1994
• Status: Expired due to Fees

• Current Assignee: Robert N. Stellmach
• Original Assignee: Robert N. Stellmach
• Inventors: Stellmach, Robert N.
• Primary Examiner(s): Eisenzopf, Reinhard J.
• Assistant Examiner(s): LE, THANH C
• Application Number:
  US08/195,095
• Time in Patent Office: 477 Days
• Field of Search: 455/89, 455/90, 455/127, 455/343, 379/58, 379/437, 379/457
• US Class Current: 455/573
• CPC Class Codes: H04B 1/3877 Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters

Abstract

A selector adapter for a transportable cellular phone that has been converted to a bag phone including a master module which contains the circuits for alternately connecting one of a plurality of power sources to the cellular phone and a connector module for connecting the master module to the cellular phone and the power sources.

Claims

1. A selector adaptor for a cellular transportable phone that has been made into a bag phone comprising in combination,

a) a first, a second, a third and a fourth set of connector means,

b) said first set of connector means being connectable to the cellular phone,

c) said second set of connector means being connectable to a source of 12 volts DC from an 110 volt AC adaptor,

d) said third set of connector means being connectable to a battery pack, and

e) said fourth set of connector means being connectable to a cigarette lighter,

f) and circuit means in said selector adapter for selectively connecting said sets of connector means,

g) said circuit means includes (i) a first circuit for connecting said first set of connector means to said third set of connector means while disconnecting said second and fourth sets of connector means from said first and third set of connector means, (ii) a second circuit for connecting said first set of connector means to said fourth set of connector means and to said third set of connector means while disconnecting said third set of connector means and said second set of connector means from said first set of connector means, (iii) and a third circuit for connecting said second set of connector means to said third set of connector means while disconnecting both said second and third set of connector means from said first and fourth set of connector means.

2. The selector adapter according to claim 1 wherein said circuit means includes a relay circuit comprised of a pair of normally open switches, a pair of normally closed switches, a first and a second switch member for actuating said switches, and an actuating coil for actuating said switches.

3. The selector adapter according to claim 1 wherein said circuit means includes a resistor and a thermistor connected in parallel to control the charging current.

4. The selector adapter according to claim 1 wherein each of said sets of connector means is a plurality of connector pins, said selector adapter being connectable to a connector module having four adapter cords extending therefrom.