Abstract: A seat attachment system for a vehicle frame includes a vehicle frame having a lower seat-bracket receptacle defined within a frame base and an upper seat-bracket receptacle defined within an upper frame member, a seat frame attached to the vehicle frame at the lower and upper seat-bracket receptacles and a lower seat-bracket set comprising a rotation-free lower bracket and a rotational lower bracket, wherein the lower seat bracket receptacle receives one of the rotation-free lower bracket and the rotational lower bracket, wherein when the rotation-free lower bracket is attached to the lower seat-bracket receptacle and the seat frame is coupled with the rotation-free lower bracket, the seat frame is free of rotational movement, and wherein when the rotational lower bracket is attached to the lower seat-bracket receptacle and the seat frame is coupled with the rotational lower bracket, the seat frame is capable of rotational movement.

Abstract: A seat attachment system for a vehicle frame includes a vehicle frame having a lower seat-bracket receptacle defined within a frame base and an upper seat-bracket receptacle defined within an upper frame member, a seat frame attached to the vehicle frame at the lower and upper seat-bracket receptacles and a lower seat-bracket set comprising a rotation-free lower bracket and a rotational lower bracket, wherein the lower seat bracket receptacle receives one of the rotation-free lower bracket and the rotational lower bracket, wherein when the rotation-free lower bracket is attached to the lower seat-bracket receptacle and the seat frame is coupled with the rotation-free lower bracket, the seat frame is free of rotational movement, and wherein when the rotational lower bracket is attached to the lower seat-bracket receptacle and the seat frame is coupled with the rotational lower bracket, the seat frame is capable of rotational movement.

Abstract: A seat attachment system for a vehicle frame includes a vehicle frame having a lower seat-bracket receptacle defined within a frame base and an upper seat-bracket receptacle defined within an upper frame member, a seat frame attached to the vehicle frame at the lower and upper seat-bracket receptacles and a lower seat-bracket set comprising a rotation-free lower bracket and a rotational lower bracket, wherein the lower seat bracket receptacle receives one of the rotation-free lower bracket and the rotational lower bracket, wherein when the rotation-free lower bracket is attached to the lower seat-bracket receptacle and the seat frame is coupled with the rotation-free lower bracket, the seat frame is free of rotational movement, and wherein when the rotational lower bracket is attached to the lower seat-bracket receptacle and the seat frame is coupled with the rotational lower bracket, the seat frame is capable of rotational movement.

Abstract: An apparatus and method for remotely measuring emissivity and hence temperature of a surface of an object. The apparatus includes a detector having a radiation receptor for measuring infra-red radiation, an integrating cavity surrounding the receptor for receiving radiation from a surface facing the cavity and delivering the radiation to the receptor, at least two sources of infra-red containing radiation (e.g. light from an incandescent lamp) within the integrating cavity positioned to produce separate beams of the radiation which strike the surface at different angles suitable for reflection to the receptor, and a processor for determining the temperature of the surface from the radiation measured by the detecting means. The use of at least two mutually angled radiation beams compensates for surface anisotropy of the surface whose temperature is to be measured.