Abstract: A filter for making filtered drinks, such as coffee, includes a filter bag and supporting members connected to the filter bag for supporting the filter on the rim of a vessel, such as a cup. The supporting members are adapted to be moved from a flat folded configuration to a position in which the supporting members are substantially horizontally oriented for being positioned on the rim of the cup.

Abstract: A method of packaging fluent solid materials such as coffee includes determining the gross weight of filled packets and determining the tare allowance of the packets. The tare allowance is determined through random sampling and that value is subtracted from the gross weight of the filled packets in order to define a nominal value. That nominal value is then fed to the filling machine in a closed control loop. The apparatus for packaging fluent solid materials includes a bag forming machine, a filling machine for filling the bags, a gross balance for filling the bags and a conveyor for conveying the bags. A switch is provided for filtering out empty bags from the conveyor to a tare balance and a control unit is connected to the measuring outputs of the tare balance. The regulating output of the control unit permits bags to be filtered out and weighted at a defined frequency.

Abstract: A filter bag is positioned inside and fastened to a holding frame. The holding frame has substantially vertical walls and is adapted to be placed on the edge of a coffee cup or the like. The sides of the holding frame that face the filter bag are made of hydrophobic material. The filter bag is made of nonwoven hydrophilic filter material.

Abstract: An infusion bag for making beverages from extractable substances includes first and second subchambers that are connected to each other at their upper and lower transverse edges. A rigid actuating handle having a rigid transverse web, is connected to the subchambers and permits the subchambers to be subjected to up and down movements so that infusion of the extractable substances can occur in a very short time.