1. A terminal data loader system comprising:
a control processor unit comprising a computer with tangible, non-transitory memory storing software, the control processor unit communicatively coupled with an aircraft network within an aircraft;
a wireless communication unit comprising a wireless transceiver, coupled with the control processor unit, and that provides the control processor unit a cellular wireless bi-directional Internet connection with a in-flight entertainment (IFE) management computer system; and
wherein the control processor unit is configured to manage an exchange of data with the aircraft network in response to at least one of (a) a detected internal aircraft condition, and (b) a detected external aircraft condition based on external physical sensor signals.
2. The system of claim 1, wherein the detected internal aircraft condition includes detection of an insertion of a non-transitory medial element into a hardware media drive coupled with the control processor unit.
3. The system of claim 1, wherein the detected external aircraft condition comprises an \u201cat gate\u201d signal.
4. The system of claim 1, wherein the detected external aircraft condition comprises a cabin door state.
5. The system of claim 4, wherein the detected external aircraft condition indicates a cabin door is open.
6. The system of claim 1, wherein the detected external aircraft condition indicates a parking brake is set.
7. The system of claim 1, wherein the detected external aircraft condition indicates the aircraft is parked at a terminal.
8. The system of claim 1, wherein the detected external aircraft condition comprises an information signal obtained from a remote management system via the wireless connection.
9. The system of claim 8, wherein the information signal comprises off-load data.
10. The system of claim 8, wherein the information signal comprises on-load data.
11. The system of claim 1, wherein the cellular wireless connection comprises a tri-band data link.
12. The system of claim 1, wherein the cellular wireless connection comprises at least one of the following: a Global System for Mobile (GSM) link, a Circuit Switched Data (C SD) link, a General Packet Radio Service (GPRS) link, and a Short Message Service (SMS) protocol link.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A spring balance comprising a top assembly which is securable to a frame member, a bottom assembly which is securable to a sliding sash, a tension spring connected to the top assembly and to the bottom assembly, a torsion spring, a spiral rod, and a follower bush interconnecting the spiral rod and the torsion spring, the spring balance being adjustable at the top assembly, the spring balance incorporating a limit mechanism for limiting the range of adjustment.
2. A spring balance according to claim 1 wherein the spring balance is adjustable by way of rotation of a gear carried by the top ably, and in that the limit mechanism acts to limit the number of rotations available to the gear.
3. A spring balance according to claim 2 wherein the limit mechanism is a threaded member which is in threaded engagement with the gear.
4. A spring balance according to claim 3 wherein the threaded member is substantially non-rotatable so that rotation of the gear causes axial movement of the threaded member, and wherein the threaded member can engage parts of the top assembly to limit its axial movement.
5. A spring balance according to claim 2 wherein the limit mechanism limits rotation of the gear to a predetermined amount to prevent over-adjustment of the torsion spring.
6. A spring balance according to claim 1 wherein the torsion spring is connected to the top assembly and the spiral rod is connected to the bottom assembly.
7. A spring balance according to claim 1 wherein the top assembly has a ratchet mechanism and an over-ride mechanism, the ratchet mechanism permitting adjustment of the spring balance to increase the torsion in the torsion spring, and the over-ride mechanism being adapted to allow the ratchet mechanism to be disabled and allow a reduction in the torsion of the torsion spring.
8. A spring balance according to claim 1 wherein the bottom assembly has a pivoting mounting for the sliding sash, and a braking mechanism controlled by the pivoting mounting.
9. A spring balance according to claim 8 wherein the bottom assembly has a mounting bracket for the sliding sash, the mounting bracket being mounted upon the pivoting mounting.
10. A spring balance according to claim 9 wherein the mounting bracket carries a pivoting stay, and wherein one end of the pivoting stay is connected to the mounting bracket and the other end of the pivoting stay is connectable to a slide member.
11. A spring balance comprising a top assembly which is securable to a frame member, a bottom assembly which is securable to a sliding sash, a tension spring connected to the top assembly and to the bottom assembly, a torsion spring, a spiral rod, and a follower bush interconnecting the spiral rod and the torsion spring, the spring balance being adjustable by way of a gearbox within the top assembly, the gearbox having a ratchet mechanism and an over-ride mechanism, the ratchet mechanism permitting adjustment of the spring balance to increase the torsion in the torsion spring, and the over-ride mechanism allowing the ratchet mechanism to be disabled and allow a reduction in the torsion in the torsion spring.