A pneumatic propulsion system includes pneumatic powered motors coupled to a rotatable tubular inner drive member of an axle assembly. The rotatable tubular drive member, for example when installed in a ground traversing vehicle, will be coupled to drive wheels of the vehicle. The pneumatic propulsi
A pneumatic propulsion system includes pneumatic powered motors coupled to a rotatable tubular inner drive member of an axle assembly. The rotatable tubular drive member, for example when installed in a ground traversing vehicle, will be coupled to drive wheels of the vehicle. The pneumatic propulsion system of the invention further includes a plurality of radial compressor units mounted upon the axle assembly, and rotated and driven by the tubular drive member. A controlled release of pressurized air from an included reservoir tank energizes the pneumatic powered motors, causing a rotating of the tubular drive member and a propelling of the vehicle. The rotating of tubular drive member additionally directly drives the compressor units causing air to be pressurized and regeneratively transferred into a pneumatic reservoir tank of the propulsion system.
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A pneumatic propulsion system includes pneumatic powered motors coupled to a rotatable tubular inner drive member of an axle assembly. The rotatable tubular drive member, for example when installed in a ground traversing vehicle, will be coupled to drive wheels of the vehicle. The pneumatic propulsi
A pneumatic propulsion system includes pneumatic powered motors coupled to a rotatable tubular inner drive member of an axle assembly. The rotatable tubular drive member, for example when installed in a ground traversing vehicle, will be coupled to drive wheels of the vehicle. The pneumatic propulsion system of the invention further includes a plurality of radial compressor units mounted upon the axle assembly, and rotated and driven by the tubular drive member. A controlled release of pressurized air from an included reservoir tank energizes the pneumatic powered motors, causing a rotating of the tubular drive member and a propelling of the vehicle. The rotating of tubular drive member additionally directly drives the compressor units causing air to be pressurized and regeneratively transferred into a pneumatic reservoir tank of the propulsion system. e associated device in use and producing a control signal, and a timer responsive to the control signal for initiating a predetermined time period, the control circuit being operable for disconnecting the connection circuit at the expiration of the time period. 2. The battery pack of claim 1, wherein the housing includes a plug portion receivable in a socket portion of the associated impact tool for mounting the battery pack on the tool. 3. The battery pack of claim 1, wherein the control circuit includes a relay having normally-closed contacts in the connection circuit. 4. The battery pack of claim 1, and further comprising an ON-OFF switch for selectively connecting the battery to the control circuit for powering same. 5. The battery pack of claim 4, and further comprising an indicator connected to the switch for indicating when the control circuit is powered. 6. The battery pack of claim 1, wherein the timer includes a circuit for selectively adjusting the length of a predetermined time period. 7. The battery pack of claim 1, wherein the timer includes circuitry for controlling the length of time that the connection circuit is disconnected at the expiration of the predetermined time period. 8. The battery pack of claim 1, wherein the detector is an acoustic detector. 9. The battery pack of claim 1, wherein the acoustic detector includes circuitry for selectively adjusting the sound level to which the detector will respond. 10. An electrically powered device comprising: an electric motor; an operating mechanism driven by the motor; and a battery pack having a battery and a connector adapted to be removably connected to the motor for powering same, the battery pack including a control circuit having a detector for detecting vibrations generated by the operating mechanism in use to produce a control signal, and a timer responsive to the control signal for initiating a predetermined time period, the control circuit being operable for disconnecting the battery from the connector at the expiration of the time period. 11. The device of claim 10, and further comprising a housing for the motor and impact mechanism, and structure for mounting the battery pack on the housing. 12. The device of claim 11, wherein the structure includes a turret portion on the battery pack and a socket portion in the housing for receiving the turret portion. 13. The device of claim 11, and further comprising latch mechanism for releasably retaining the battery pack on the housing. 14. The device of claim 10, and further comprising an ON-OFF switch for selectively connecting the battery to the control circuit for powering same. 15. The device of claim 10, wherein the timer includes a circuit for selectively adjusting the length of a predetermined time period. 16. The device of claim 10, wherein the device is an impact tool, the operating mechanism including an impact mechanism having a hammer and an anvil. 17. The device of claim 16, wherein the impact tool is a torque-applying tool. 18. A battery pack for an electrically-powered impact tool, the battery pack comprising: a housing; a battery disposed within the housing; means for connecting the battery to the associated tool; means for detecting vibrations caused by impacts generated by the associated tool and producing a control signal; timing means responsive to the control signal for initiating a predetermined time period; and means for disconnecting the battery from the associated tool at the expiration of the time period. 19. The battery pack of claim 18, and further comprising means for selectively connecting the battery to the means for detecting and to the timing means and to the means for disconnecting. 20. The battery pack of claim 19, and further comprising means for indicating when the means for detecting and the timing means and the means for disconnecting are powered. 21. The battery pack of claim 18, wherein the timing means includes means for selectively adjusting t
Rolfe, Bernard Frank; De Souza, Timothy Ian; Pitts, Gregory Ryan; Hanafin, Stuart James McFarlane; Agius, Steven Lewis Anthony; Adamson, Benjamin Paul; Pereira, Michael Pio Gordon; Black, Timothy John; Hurren, Christopher James; Miller, Noel Egan, Pneumatic powertrain for an automotive vehicle.
Rolfe, Bernard Frank; De Souza, Timothy Ian; Pitts, Gregory Ryan; Hanafin, Stuart James McFarlane; Agius, Steven Lewis Anthony; Adamson, Benjamin Paul; Pereira, Michael Pio Gordon; Black, Timothy John; Hurren, Christopher James; Miller, Noel Egan, Pneumatic powertrain for an automotive vehicle.
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