The vibration feeder has a drive unit (4) comprising a vibration drive (10), a carrier arrangement (5) comprising a feeding element for the material to be conveyed and a control (26) for the vibration drive (10), wherein an acceleration sensor (27) is arranged on the drive unit (10), which when the vibration feeder (25) is operating, detects the actual acceleration of the drive unit (4), and wherein the control (26) is configured to use the actual acceleration signal of the acceleration sensor (26) for generating a regulating variable for the vibration drive (10) such that the carrier arrangement (5) vibrates essentially within its resonance frequency (f.sub.res). This makes it possible, during operation, to detect the acceleration of a drive unit (4) of the vibration feeder (25) and to generate therefrom a regulating variable for a vibration drive (10) such that a carrier arrangement (5) of the vibration feeder (25) vibrates closer to its resonance frequency (f.sub.res) or is brought back again to the same. In addition the inventive control (28) may be used to also regulate the amplitude of the carrier arrangement (4) and the associated mass flow {dot over (m)} to a required value.

A transfer device including at least one first transfer component and at least one second transfer component are provided. The first transfer component includes a first carrier pad contacting the transferred object, and the second transfer component includes a second carrier pad contacting the transferred object, and material of the first carder pad has stronger capability to capture electrons than that of the second carrier pad and material of the second carrier pad has stronger capability to lose electrons than that of the first carder pad.

A weldment structure for reinforcing a boom of a material conveyor apparatus includes a pair of elongate rigid members having an overall length with cut ends, a set of cross members sharing an overall length with cut ends, the cross members fixed orthogonally to the elongate rigid members functioning to hold the rigid members apart and parallel and at the same edge alignment, and a set of cross support brackets fixed to the cross members and to the elongate rigid members, the cross support brackets each supporting at least a return roller bracket assembly and a pair of opposing belt guides.

A configurable belt conveyor for manufacturing comprising first belt and an adaptable border adjacent to the belt. The adaptable border having a first configuration in which a first width of the belt is available for supporting a pallet on the conveyor belt, and a second configuration in which a portion of the belt is covered by the adaptable border, such that the second width of the belt is sized for supporting a printed circuit board (PCB). In one embodiment, the configurable belt conveyor may be configured to form a dual stream conveyor.

A configurable belt conveyor for manufacturing comprising first belt and an adaptable border adjacent to the belt. The adaptable border having a first configuration in which a first width of the belt is available for supporting a pallet on the conveyor belt, and a second configuration in which a portion of the belt is covered by the adaptable border, such that the second width of the belt is sized for supporting a printed circuit board (PCB). In one embodiment, the configurable belt conveyor may be configured to form a dual stream conveyor.

A weldment structure for reinforcing a boom of a material conveyor apparatus includes a pair of elongate rigid members having an overall length with cut ends, a set of cross members sharing an overall length with cut ends, the cross members fixed orthogonally to the elongate rigid members functioning to hold the rigid members apart and parallel and at the same edge alignment, and a set of cross support brackets fixed to the cross members and to the elongate rigid members, the cross support brackets each supporting at least a return roller bracket assembly and a pair of opposing belt guides.

A configurable belt conveyor for manufacturing comprising first belt and an adaptable border adjacent to the belt. The adaptable border having a first configuration in which a first width of the belt is available for supporting a pallet on the conveyor belt, and a second configuration in which a portion of the belt is covered by the adaptable border, such that the second width of the belt is sized for supporting a printed circuit board (PCB). In one embodiment, the configurable belt conveyor may be configured to form a dual stream conveyor.

A transfer device including at least one first transfer component and at least one second transfer component are provided. The first transfer component includes a first carrier pad contacting the transferred object, and the second transfer component includes a second carrier pad contacting the transferred object, and material of the first carder pad has stronger capability to capture electrons than that of the second carrier pad and material of the second carrier pad has stronger capability to lose electrons than that of the first carder pad.

A telescopic material conveyer apparatus has a main boom assembly reinforced by a steel saddle frame connected to a turn table and a lift mechanism, an extension boom assembly adapted by two or more roller assemblies and connecting hardware to travel mechanically within the main boom assembly and to extend therefrom, one or more connected drive motors, a conveyer belt supported by frame architecture and a pulley and drive chain system, at least one hydraulic motor having operative connection to the turntable, lift mechanism and to a belt drive drum, at least one hydraulic valve connected inline in the hydraulic line controlling the belt drive motor, the valve electronically operable via input received from a load sensor integrated within or to the lift mechanism, a programmable load threshold determining open and close operation states of the valve and directing run and stop state operations of the conveyer belt.

An endless belt includes either a single-layer body including a layer including an imide resin and conductive particles, or a multilayer body including the layer as an outermost layer. The ratio y/x of the layer is 0.8992 or more and 1.0157 or less, where x [log /] is the common logarithm of the surface resistivity of the outer peripheral surface of the layer measured with a ring probe when a voltage of 100 V is applied to the layer for 3 seconds at a load of 1 kg, and y [log .Math.cm] is the common logarithm of the volume resistivity of the layer measured with a ring probe when a voltage of 100 V is applied to the layer for 5 seconds at a load of 1 kg.