Abstract: An improved semi-recumbent bicycle seat includes a frame having a main seat support tube and a steering mechanism including a front tire support fork. Front and rear wheels are mounted on the front tire support fork and on the frame. A bicycle seat is mounted above and forwards of the rear wheel, the bicycle seat including a bicycle seat frame, a seat base and a seat cushion. A seat back is adjustably mounted on the bicycle seat frame for adjustment of the height and spacing of the seat back relative to the seat base, and the seat cushion includes a generally flat planar front face and a forwardly tilted top surface which is tilted from horizontal between two and thirty degrees (2° and 30°). The bicycle seat frame is adjustably mounted on the main seat support tube free of any other support connection to the bicycle frame.

Abstract: An improved semi-recumbent bicycle seat includes a frame having a main seat support tube and a steering mechanism including a front tire support fork. Front and rear wheels are mounted on the front tire support fork and on the frame. A bicycle seat is mounted above and forwards of the rear wheel, the bicycle seat including a bicycle seat frame, a seat base and a seat cushion. A seat back is adjustably mounted on the bicycle seat frame for adjustment of the height and spacing of the seat back relative to the seat base, and the seat cushion includes a generally flat planar front face and a forwardly tilted top surface which is tilted from horizontal between two and thirty degrees (2° and 30°). The bicycle seat frame is adjustably mounted on the main seat support tube free of any other support connection to the bicycle frame.

Abstract: An improved bicycle seat includes a seat base having a base plate and a seat cushion mounted on the base plate and a seat base mounting shaft mounted on and extending downwards from the base plate of the seat base. A seat back mounting shaft assembly is mounted on and extends rearwards and upwards from the seat base mounting shaft and the base plate of the seat base and a generally upright seat back is adjustably mounted on the seat back mounting shaft assembly for vertical and horizontal adjustment of the positioning of the generally upright seat back relative to the seat base. The seat cushion further includes a generally flat front face and a forwardly tilted top surface wherein the top surface of the seat cushion is forwardly tilted from horizontal between two and thirty degrees.

Abstract: An improved bicycle seat includes a seat base having a base plate and a seat cushion mounted on the base plate and a seat base mounting shaft mounted on and extending downwards from the base plate of the seat base. A seat back mounting shaft assembly is mounted on and extends rearwards and upwards from the seat base mounting shaft and the base plate of the seat base and a generally upright seat back is adjustably mounted on the seat back mounting shaft assembly for vertical and horizontal adjustment of the positioning of the generally upright seat back relative to the seat base. The seat cushion further includes a generally flat front face and a forwardly tilted top surface wherein the top surface of the seat cushion is forwardly tilted from horizontal between two and thirty degrees.

Abstract: A vertically adjustable seat apparatus and method for a conventional wheelchair having a pair of horizontally spaced seat support bars running front to back of the wheelchair and which are supported in position by a pair of cross-bars. The adjustable seat has a substantially flat seat and a plurality of belt means adapted to support the seat and running along the underside thereof. A locking means is associated with each of the belt means for releasably locking the belt means at a desired length corresponding to a distance below the support bars at which the seat will be positioned. A plurality of hook means is adapted to be slidably received on the belt means and adapted to releasably engage the seat support bars and support the seat in the desired vertical position.