Motorola Corporation

Motorola Solutions, Inc.

Robert B Widmayer

James W Turocy

Kenneth W Larson

Peter P Walter

Richard H Burzynski

David M Frendreiss

David T Andersen

James A Hale

Horng L Wang

Herman J Miller

Joachim Haupt

Zvonko Mavrin

Joseph P Luptak, Iii

Ken Larson

Peter Berthold

Carl A Steen, Jr

Stephen P Flood

Cynthia Benske

Base radios and communication apparatus () that include: a chassis (); at least one power supply module () having a height that is substantially the height of a three rack unit chassis and having a width that is substantially one sixth the usable width of a nineteen inch rack; at least one fan kit module () having a first fan kit module dimension that is substantially the height of the power supply module and a second fan kit module dimension that is substantially five sixths the usable width of a nineteen inch rack; and at least one other module () having a first module dimension that is substantially the second fan kit module dimension and having a corresponding second module dimension.

Base radios with interchangeable modules

A heat sink and component support assembly that includes a core structure (). The core structure () includes: a central member () having first () and second opposing sides; at least one heat dissipating surface () extending from at least one of the first opposing sides (); and first and second extension members () positioned adjacent to each of the second opposing sides. The assembly may also include an airflow facilitating arrangement, such as a fan (), positioned adjacent to the core structure () for further enhanced heat dissipating capabilities.

Heat sink and component support assembly

Fan module

Base radio front cover

Base radio module

Base radio power supply front cover

Six-pack base radio front covers

A heat sink () for use with a heat generating device, that includes: a base member (); a fixed set of adjacent heat dissipating surfaces () formed in the base member () for causing the heat sink () to have a predetermined low power dissipation level that is a function of the number of heat dissipating surfaces () in the fixed set; and at least one groove () formed in the base member () between each two adjacent heat dissipating surfaces () in the fixed set for enabling an additional heat dissipating surface to be securedly attached to the base member () in each groove () for enabling the heat sink to have a power dissipation level that is in excess of the predetermined low power dissipation level as a function of the number of additional heat dissipating surfaces attached to the base member ().

Heatsink with multiple, selectable fin densities

An apparatus and method for releasable securement together of a transformer power supply assembly together which includes a stacked arrangement ( ) of a first transformer core plate ( ) positioned to overlie a circuit board ( ), a second transformer core plate ( ) positioned to underlie the first transformer core plate ( ) and the circuit board ( ) and a carrier member ( ) positioned beneath the second transformer core plate ( ), the first and second transformer core plates ( ) contact one another through at least one opening positioned in the circuit board ( ). The apparatus includes having a body positioned over the first transformer core plate ( ) in which the body of the span member ( ) extends over a surface of the first transformer core plate ( ) and extends from a portion of a peripheral edge of the first transformer core plate ( ) to another portion of the peripheral edge of the first transformer core plate ( ). A cross member ( ) connected to the span member extends in a direction transverse to the span member ( ) and is interposed between the span member ( ) and the first transformer core plate ( ). At least two engagement leg members ( ) are provided in which one engagement leg member ( ) is connected to the span member ( ) and extends in a direction transverse to the span member ( ) for extending along a side of the stacked arrangement ( ) and another engagement leg member ( ) is connected to the span member ( ) and is spaced apart from the one engagement leg member ( ) and extends transverse to the span member ( ) for extending along an opposing side of the stacked arrangement ( ). At least two hook members ( ) for engaging the carrier ( ) in which one hook member ( ) is connected to the one engagement leg member ( ) and extends in a direction transverse to the one engagement leg ( ) member and another hook member ( ) is connected to the other engagement leg member ( ) and extends in a direction transverse toward the other engagement leg member ( ).

Securement for transformer core utilized in a transformer power supply module and method to assemble same

A power distribution assembly (100) that comprises at least two direct current power supplies (106, 107), at least three signal splitter modules (102-104), wherein each signal splitter modules comprises a signal splitter and a radio frequency amplifier, a centerplane board (110) coupled to the at least three signal splitter modules (102-104) and to the at least two direct current power supply modules(106, 107), wherein the centerplane board (110) provides a plurality of electrical paths among a plurality of modules contained in the power distribution assembly (100), and a chassis (101) to which the modules (102-104, 106, 107) and the centerplane board (110) are mounted, and has an overall volume of at most 0.009 cubic meters.

Power distribution assembly

A radio frequency compatible multi-board cluster (300) having three shielded housings (301, 301, 303) for containing three component parts of a radio, namely, the controller, the transmitter, and the receiver. These shielded housings (301, 301, 303) are electrically and physically intercoupled with one another at 90.degree. angles to form a bracket-receiving cavity (401) there between.

Radio frequency compatible multi-board cluster

Front panel

Heat sink

Growing community of inventors

Harvard, IL, United States of America

Robert B Widmayer