Abstract: A headset adapted to be positioned on a head includes a headband assembly for spanning across the head of a user. An earcup assembly is coupled proximate one end of the headband assembly. A power source assembly is coupled proximate the other end of the headband assembly. A flexible stabilizing strap has a first end coupled to the headset proximate the earcup assembly and a second end coupled to the headset terminal proximate the power source assembly. The strap includes a first band portion that couples with a second band portion, at least one band portion including a plurality of coupling positions along its length for adjustably coupling with the other band portion at different lengths to vary the overall length of the flexible stabilizing strap. The stabilizing strap is adapted to engage the head of a user to further stabilize the headset on the head.

Abstract: A headset terminal for speech applications includes a headband assembly, an earcup assembly and a power source assembly. Processing circuitry is positioned in at least one of the earcup assembly and the power source assembly and includes speech processing circuitry for recognizing and synthesizing speech. A radio communicates with a central system to process the activity information of the headset terminal user. A rotatable microphone boom assembly includes controls mounted on opposite sides of a rotation axis to maintain a consistent orientation on the boom assembly with respect to the head of a user. The boom assembly snaps together with the earcup assembly to rotate. The headband assembly includes at least one transverse band and a sliding arm coupled to the earcup assembly for dynamically adjusting the position of the earcup assembly. A latch of the power source assembly snaps into position to secure it with the assembly and slides between latched and unlatched positions to secure a battery.

Abstract: A headset adapted to be positioned on a head includes a headband assembly for spanning across the head of a user. An earcup assembly is coupled proximate one end of the headband assembly. A power source assembly is coupled proximate the other end of the headband assembly. A flexible stabilizing strap has a first end coupled to the headset proximate the earcup assembly and a second end coupled to the headset terminal proximate the power source assembly. The stabilizing strap is adapted to engage the head of a user to further stabilize the headset on the head.

Abstract: A multiple function control for an electric lift truck which facilitates moving the truck while the load carriage is being raised or lowered. Two vehicles speeds in forward and reverse can be selected by means of a pair of pushbuttons (34, 36) located on the load carriage lift control handle (32), independent of the normal vehicle travel control (28). Circuit means are provided to prevent simultaneous selection of both forward and reverse drive motor directions and to prevent adverse results from simultaneous operation of the normal vehicle travel control and the pushbutton control.

Abstract: An electro-hydraulic automatic seat brake system which is effective to automatically set the hydraulic service brakes and shut down the engine of an industrial vehicle whenever the operator's seat is unoccupied. In order to release the brakes after the seat is reoccupied, the operator must turn on the engine ignition circuit and close a separate brake release switch. The system is charged immediately upon starting the engine by means of an engine-driven pump before other hydraulic components can be operated, and the charge is maintained when the engine is shut down by means of an accumulator. According to one aspect of the invention the hydraulic pressure on the service brakes is automatically released when a mechanical handbrake is set. According to another aspect of the invention means are provided to allow the engine to keep running when the operator's seat is unoccupied, provided that the vehicle transmission is in a neutral condition.