IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0215657
(2002-08-10)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
11 인용 특허 :
3 |
초록
▼
A tradesworker's radio has a weather and impact resistant features to enable a tradesworker to use the radio under adverse working conditions, such as construction or other work sites. Louvered grills covering moisture resistant loudspeakers are angled downward to protect the speakers from direct sp
A tradesworker's radio has a weather and impact resistant features to enable a tradesworker to use the radio under adverse working conditions, such as construction or other work sites. Louvered grills covering moisture resistant loudspeakers are angled downward to protect the speakers from direct splash in case the radio is left outdoors in a heavy downpour. A layer of felt-like material is interspersed between the louvered grills and the loudspeaker cones to offer improved moisture resistance. A non-telescoping antenna of the rubber covered spring type material folds neatly into recess when not in use. The controls include waterproof pushbuttons for on/off, volume adjustment, a weather channel, AM/FM selection and tuning. Elastomeric blocks are bonded to the interior of the housing and the blocks have bonded threaded studs, which are used to shock mount the radio circuit board to the inside of the housing. This circuit board is treated with a conformal coating to improve its moisture resistance. The preferred housing material is a layer of rigid plastic, which is impact resistant and the outer covering is a resilient tough elastomer. The radio can be used with an adapter to convert to a power hand tool battery pack to accommodate a variety of different battery packs and adapters. The battery compartment is generous in size and lined with a soft polyurethane material to protect the battery pack from damage.
대표청구항
▼
1. A durable portable radio for tradesworkers comprising:an enclosure;a radio disposed in said enclosure and including a radio receiver for receiving radio signals and generating audio output signals responsive thereto;an AC powered DC charger for powering said radio and charging a removable DC volt
1. A durable portable radio for tradesworkers comprising:an enclosure;a radio disposed in said enclosure and including a radio receiver for receiving radio signals and generating audio output signals responsive thereto;an AC powered DC charger for powering said radio and charging a removable DC voltage power source, said charger generating a first DC output voltage having a magnitude sufficient to power said radio;a removable DC power supply disposed in said enclosure for powering said radio and being charged by said charger, said DC power supply being selected to generate a second DC output voltage having a magnitude in a range that includes voltages both lower and higher than the magnitude of said first DC output voltage from said charger;a power conversion circuit disposed between said radio and said removable power supply, to enable said removable DC power supply to power said radio regardless of the magnitude of the second DC output voltage from said removable power supply. 2. A durable portable radio for tradesworkers comprising:an enclosure;a radio disposed in said enclosure and including a radio receiver for receiving radio signals and generating audio output signals responsive thereto;an AC powered DC charger for powering said radio and charging a removable DC voltage power source, said charger generating a first DC output voltage having a magnitude sufficient to power said radio;a removable DC power supply disposed in said enclosure for powering said radio and being charged by said charger, said DC power supply being selected to generate a second DC output voltage having a magnitude in a range that includes voltages both lower and higher than the magnitude of said first DC output voltage from said charger; anda power conversion circuit enabling said removable power supply to power said radio and be charged by said charger, regardless of the magnitude of the second DC output voltage from said removable power supply. 3. The durable portable radio of claim 2, wherein said power conversion circuit includes a first converter circuit for receiving said second DC output voltage from said removable power supply and generating a third DC output voltage having a magnitude that is sufficient to power said radio, and a second converter for receiving said first DC output voltage from said charger and generating a fourth DC output voltage that is suitable for charging said removable power supply. 4. The combination battery charger and durable portable radio for tradesworkers of claim 2, wherein said second DC output voltage of said removable power supply is selected to have a magnitude that is lower than said first DC output voltage from said charger, said first conversion circuit includes an up-converter for causing said third DC output voltage to be of higher magnitude than said second DC output voltage, and said second conversion circuit includes a down-converter for causing said fourth DC output voltage to be of lower magnitude than said first DC output voltage so that said fourth DC output voltage is of a magnitude that is suitable to charge said removable power supply. 5. The combination battery charger and durable portable radio for tradesworkers of claim 3, wherein said second DC output voltage of said removable power supply is selected to have a magnitude that is higher than said first DC output voltage from said charger, said first conversion circuit includes an down-converter for causing said third DC output voltage to be of lower magnitude than said second DC output voltage, and said second conversion circuit includes a up-converter for causing said fourth DC output voltage to be of higher magnitude than said first DC output voltage so that said fourth DC output voltage is of a magnitude that is suitable to charge said removable power supply. 6. The combination battery charger and durable portable radio for tradesworkers of claim 3, wherein said removable power supply comprise a portable power tool battery pack. 7. Th e combination battery charger and durable portable radio for tradesworkers of claim 6, wherein said portable power tool battery pack generates an output voltage of between 9.6 and 18 volts. 8. The combination battery charger and durable portable radio for tradesworkers of claim 7, wherein the magnitude of said first DC output voltage from said charger is greater than 9.6 volts and less than 18 volts. 9. A durable portable radio for tradesworkers comprising:a weather and impact resistant enclosure having an exterior surface and an interior space;radio receiver means for receiving radio signals and generating electronic audio output signals responsive thereto;said exterior surface having a plurality of surfaces,an antenna extending from one surface of said plurality of surfaces,a handlea ventilation opening extending from said interior space of said radio,a first power source including an electrical cord engageable with an electrical outlet,an adapter engageable with a removable secondary rechargeable direct current power source, said removable secondary rechargeable direct current power source engagable with a remote direct current powered hand tool,a charger to charge said secondary rechargeable direct current power source from said first power source, andwherein said weather and impact resistant enclosure comprises acrylonitrile butadiene styrene covered by a layer of polyurethane. 10. A durable portable radio for tradesworkers comprising:a weather and impact resistant enclosure having an exterior surface and an interior space;radio receiver means for receiving radio signals and generating electronic audio output signals responsive thereto;said exterior surface having a plurality of surfaces,an antenna extending from one surface of said plurality of surfaces,a handlea ventilation opening extending from said interior space of said radio,a first power source including an electrical cord engageable with an electrical outlet,an adapter engageable with a removable secondary rechargeable direct current power source, said removable secondary rechargeable direct current power source engagable with a remote direct current powered hand tool,a charger to charge said secondary rechargeable direct current power source from said first power source, and wherein said second power source includes a battery pack having a voltage of between about 9.6 to about 18 volts. 11. The durable portable radio for tradesworkers as in claim 10 wherein said battery pack of said second power source has a voltage within the nominal operating range of said radio. 12. A durable portable radio for tradesworkers comprising:a weather and impact resistant enclosure having an exterior surface and an interior space;radio receiver means for receiving radio signals and generating electronic audio output signals responsive thereto;said exterior surface having a plurality of surfaces,an antenna extending from one surface of said plurality of surfaces,a handlea ventilation opening extending from said interior space of said radio,a first power source including an electrical cord engageable with an electrical outlet,an adapter engageable with a removable secondary rechargeable direct current power source, said removable secondary rechargeable direct current power source engagable with a remote direct current powered hand tool,a charger to charge said secondary rechargeable direct current power source from said first power source, wherein said second power source further includes a combination power supply and battery charger supplied with 115 VAC, which supplies a voltage within the nominal operating range from said power supply to said radio receiver means, and further comprising a means to permit use of battery packs lower or higher than the nominal operating voltage to be used by said radio, said means comprising a socket having a plurality of contacts mating with an adapter matching predetermined requirements of a DC source power battery pack, and a double pole single t hrow on/off switch controlling a DC/DC power source converter for supplying power to said radio.
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