Hopper structure, method of controlling the emptying of such a hopper structure, and a waste chute having such a hopper structure
Номер патента: EP1611035A1
Опубликовано: 04-01-2006
Автор(ы): Calle Medin, Kjell Eldered
Принадлежит: Envac Centrlasug AB
Опубликовано: 04-01-2006
Автор(ы): Calle Medin, Kjell Eldered
Принадлежит: Envac Centrlasug AB
Реферат: A hopper unit (2) is disclosed having a hopper structure (3). A rear wall (8) of the hopper structure is moveable between closed and open conditions. Movement of the rear wall is functionally connected, through a transmission (9, 10), to the movement of the hopper structure (3) between loading and discharge positions thereof. This allows for a controlled, comparably limited path of movement between loading and discharge positions of the hopper structure, while still providing a fixed maximum hopper loading volume and a secure emptying of the hopper load.
Method of making staircases and staircase made thereby
Номер патента: US4322927A. Автор: Kenneth E. Scott. Владелец: KENSCOT IND Ltd. Дата публикации: 1982-04-06.