1
Cooper Martin, Dronsuth Richard W, Mikulski Albert J, Lynk Jr Charles N, Mikulski James J, Mitchell John F, Richardson Roy A, Sangster John H: Radio telephone system. Motorola, Parsons Eugene A, Gillman James W, September 16, 1975: US3906166 (240 worldwide citation)

A portable duplex radio telephone system includes at least one base station transmitter having a predetermined base transmission range, and a plurality of portable or mobile units each having a predetermined portable maximum transmission range predeterminately shorter than the base transmission rang ...


2
Champlin Keith S: Electronic battery testing device. Gillman James W, Lisa Donald J, September 30, 1975: US3909708 (159 worldwide citation)

An improved self-contained electronic device for testing storage batteries and other dc sources is disclosed. The testing device is electrically connected to the battery by means of temporary spring clips. Adjustments are set to the particular electrical rating and temperature of the battery. The de ...


3
Selinko George J: Supporting and connecting structure for electric device. Motorola, Southard Donald B, Gillman James W, November 4, 1975: US3917372 (51 worldwide citation)

A structure for supporting a portable electric device and for making electrical connections thereto for energizing the device and connecting the same to external apparatus. The structure shown is particularly adapted to support a portable radio for use in a vehicle, and for automatically connecting ...


4
Opas George F: Antenna pattern generator and switching apparatus. Motorola, Parsons Eugene A, Gillman James W, November 25, 1975: US3922685 (45 worldwide citation)

A variable pattern antenna system including a plurality of radiating elements, a switching circuit for selectively applying signals to various ones of the radiating elements, a phase shifting circuit for shifting the phase of the signals applied to the elements, and a control circuit for operating t ...


5
Bevacqua Louis Albert: Anti-backlash universal coupling. Motorola, Gillman James W, Lisa Donald J, December 2, 1975: US3922883 (38 worldwide citation)

A coupling device in which pins on the head of a male member engage slots in the cavity of a flexible female member. The pins are oversize relative to the slots creating an interference fit that minimizes backlash. A plurality of relief slots let the engaging slots breath to accommodate movement of ...


6
Ocken Jr Alfred: Encapsulation housing for electronic circuit boards or the like and method of encapsulating. Motorola, Lisa Donald J, Gillman James W, March 4, 1975: US3869563 (27 worldwide citation)

A control device assembled on a circuit board is suitably encapsulated within a protective housing on a multiple unit basis especially suited for automation. A plurality of housings are arranged in an upright, side-by-side relation so that the associated circuit board may be inserted from a vertical ...


7
Kommrusch Richard S: Tunable antenna coupling circuit. Motorola, Gillman James W, Myer Victor, September 16, 1975: US3906405 (26 worldwide citation)

Tunable antenna coupling circuit for applying signals of different frequencies between an antenna and a transmitter-receiver, including a series circuit having a plurality of inductance sections and one or more shunt circuits providing capacitance between the series circuit and a reference potential ...


8
Braun William V, Handy Edward F: Method and apparatus for improving the accuracy of a vehicle location system. Motorola, Parsons Eugene A, Gillman James W, May 27, 1975: US3886554 (25 worldwide citation)

Method and apparatus for improving the accuracy of a vehicle location system, particularly of a phase ranging type, by reducing the effects of multipath propagation through the use of a variable pattern antenna for the vehicle transmitter. Separate range measurements are made using each antenna patt ...


9
Beckmann Robert M, Lamb James A, Nieglos Donald J, Reynolds Gary R: Alphanumeric terminal for a communications system. Motorola, Gillman James W, Parsons Eugene A, September 16, 1975: US3906445 (22 worldwide citation)

An alphanumeric terminal providing a digital message having a fixed portion consisting of the address of the receiver in sixteen bits, followed by a repeat of the address in sixteen bits, a status indication in four bits, a request in four bits and an acknowledge plus an indication of whether text f ...


10
Suzuki Shoji: Cassette loading apparatus for use in cassette tape recorder. Alps Motorola, Gillman James W, Lisa Donald J, September 9, 1975: US3904149 (17 worldwide citation)

A cassette loading apparatus for use in a cassette tape device having a housing with an opening adapted to receive a cassette tape cartridge and having a cassette holding frame within the housing adapted to receive the tape cartridge. The holding frame is movable between a first position aligned wit ...