Abstract: An adjustment device for removably coupling a seatback to a seat. The adjustment device can include a first adjuster and/or a second adjuster for adjusting respective linear and angular positions of the seatback relative to the seat. The first adjuster can include a first linear actuator, a main body and a sliding bed. The second adjuster can include a second linear actuator, a sliding bed and an angle plate pivotably coupled to the sliding bed. The first and second linear actuators can each include a cylindrical worm. The first adjuster and the second adjuster can be independently actuatable to change the position of the seatback relative to the seat.

Abstract: Drip collar which includes a tubular sleeve body that is made of a flexible material having an open first end and an open second end, the first end having a surface extending around an entire circumference of the sleeve body that is perpendicular to a longitudinal axis of the sleeve body. The first end of the sleeve body further having a drip kerchief contiguous with the surface of the first end, the drip kerchief comprising a folded-over portion (1) extending around the circumference of the first end, and (2) extending from the first end towards the second end.