AA Thornton IP LLP

A chair for supporting a seat occupant that includes a sensory feature that allows the seat occupant to fidget when seated. The chair includes a seat shroud that is located below the seat and seating surface of the chair. The seat shroud includes a sensory feature that is located along at least a portion of the seat shroud. The sensory feature can include a plurality of raised surfaces, such as sensory domes or dots, distributed along all or a portion of the front surface and side surfaces of the seat shroud. The size of the sensory domes can vary, and the different sized sensory domes can be randomly distributed along the surfaces of the seat shroud. When seated, the seat occupant can reach below the seat and engage the sensory feature to allow the seat occupant to fidget and divert their attention.

A stackable chair for supporting a seat occupant on a ground surface includes a seat, a chair back, a first leg assembly and a second leg assembly each having a base leg, an upright leg and a junction which couples the base leg to the upright leg. A first wheel assembly is coupled to the first leg assembly at the junction and a second wheel assembly is coupled to the second leg assembly at the junction. The stackable chair includes an end cap coupled to the base leg. The first wheel assembly and the second wheel assembly include one or more wheels that at least partially support the chair on the ground surface.

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A heat-seal band is provided that incorporates voltage sensing wires, such as signal wires or conductors that are separate from current load carrying wires or conductors. This provides two discrete electrical paths: a voltage sensing path, and a current transmission path. The voltage signal conductor(s) in the voltage sensing path may be insulated to mitigate any non-desired influence by means of the voltage signal conductor's exposure to thermal or electrical influences from the current transmission path, including current transmission paths defined through conductive tabs that connect the heat-seal band to the current load conductors. The voltage signal conductor may connect at a node to the tab to band (tab/band) junction, which is defined at an intersection of the heat-seal band's conductive tab and the band that directs heat into a workpiece. Additional or a second set of voltage sensing conductors may be electrically connected to the heat-seal band at a location that is spaced from or in a subset of the first set of voltage sensing conductors. The second set of voltage sensing conductors may provide a secondary voltage sensing arrangement as a verification tool for evaluating temperature discrepancies between their locations and those of the first set, indicative of heating non-uniformity about the heat-seal band.

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