Abstract:
A difference between a first expected required polish time for a first substrate and a second expected required polish time for a second substrate is determined using a first prepolish thickness and a second pre-polish thickness measured at an in-line metrology station. A duration of an initial period is determined based on the difference between the first expected required polish time and the second expected required polish time. For the initial period at a beginning of a polishing operation, no pressure is applied to whichever of the first substrate and the second substrate has a lesser expected required polish time while simultaneously pressure is applied to whichever of the first substrate and the second substrate has a greater expected required polish time. After the initial period, pressure is applied to both the first substrate and the second substrate.
Abstract:
Apparatus and method for filling spaced apart cavities (18) with particulate material (24) include a transport (26, 28) for moving the cavities (18) along a path of travel. The cavities (18) are partially filled with particulate material (24) at an upstream location while applying vacuum underneath each cavity (1) during such partial filling. The partially filled cavities (18) are then completely filled with a downstream deposit of particulate material (24) while applying vacuum to the upper sides of each cavity (18) during such filling. The combination of vacuum applied underneath the cavity during partial fill and vacuum applied to the top sides of the cavity (18) during complete fill produces approximately 100 % cavity fill with minimal extraneous scatter of particulate material (24).
Abstract:
The invention relates to a method for producing welded or hot-sealed seal-edge bags. The contents of said bags are an exactly dosed portion of a preparation of an substrate that produces gas in an aqueous medium. The seal-edge bag is filled with the content during the production. The invention is characterised in that a string of a carrier foil is withdrawn from a supply roll using conveying means and is conveyed to a filling station on the conveying means. An exactly dosed portion of the contents is applied to the carrier foil in the filling station when said portion runs cyclically in respect to said carrier foil and over certain areas. The portions are then covered with a covering foil which can be detached from the supply roll. The two superimposed foils are welded or hot-sealed together, first cross-wise in relation to the direction of conveyance and when conveyance continues are welded or hot-sealed together on the longitudinally extending edges thereof and whereupon said they are once again welded or hot-sealed together cross-wise in relation to the direction of conveyance, whereby bags are formed that have sealed edges all around. The foils are then separated by cross-punching devices.
Abstract:
[0029] Apparatus useful for feeding a particulate starter material comprising nutrient and bacteria to a mixing tank, for solubilizing the starter material inside the mixing tank, for promoting growth of the bacteria and for discharging an aqueous slurry comprising the bacteria from the mixing tank. The apparatus preferably has a gravity-flow feeder and discharge port, does not require a pump, and comprises disposable parts.
Abstract:
An apparatus (100) for filling a receptacle with a powder comprises a hopper (105) adapted to contain a powder pharmaceutical formulation (115), the hopper comprising an outlet (120). A vibratable member (135) is positioned in, on, or near the hopper so that the vibratable member is spaced from powder in the hopper, and the vibratable member is capable of fluidizing the powder in the hopper. Powder flowing through the outlet under the control of the vibratable member flows into a receptacle (175) or into a transfer chamber (125) for transport to a receptacle.
Abstract:
A device (1) for packaging finely divided, moistened tobacco material in individual portion packages, comprising a means (2) for feeding the material into pockets (4) formed in a rotary portioning wheel (3) for portioning the material in portions. The device further comprises at least one compression means (10, 11, 12) for compressing these portions, a unit (23, 27) for advancing a packaging material (17) in synchrony with the compressed portions, at least one means (14, 15, 16) for discharging the portions from the pockets and advancing them to the packaging material, and a unit (28, 29, 30, 31, 33) for forming individual portion packages from the discharged portions and the packaging material. At the intended point of discharge of the portions to the packaging material, said material has the form of a tape (17), the compression means (10, 11, 12) being arranged to compress the portions in a direction which differs from the discharging and the feeding directions.
Abstract:
A powder filling apparatus adapted to receive a predetermined quantity of powder from a powder hopper in a reception bore formed in a peripheral portion of a rotary board, rotate the rotary board intermittently, and discharge the powder in the reception bore into a powder container, which is placed thereunder, when the reception bore reaches a discharge filling zone, whereby a powder filling operation is carried out. The rotary board (1) is disposed with its axis of rotation C inclined, and each reception bore (8) is provided so that the axis thereof is positioned on an imaginary conical surface (12) having an apex angle theta of 60 DEG -120 DEG and the axis thereof coincides with the axis of rotation C . The powder hopper (6) is disposed at a side portion of an opening (8a) of the reception bore (8) in a vacuum suction unit (9), and a boss (28) for supporting a rotary shaft (34) of an agitator (7) above the powder hopper (6). This apparatus is suitable to be used in a step of filling a container, such as a vial with various kinds of powder including, especially, medical powder, such as an injection powder which demands the accuracy in measuring a filling quantity and the prevention of the mixing of extraneous matter.
Abstract:
A difference between a first expected required polish time for a first substrate and a second expected required polish time for a second substrate is determined using a first prepolish thickness and a second pre-polish thickness measured at an in-line metrology station. A duration of an initial period is determined based on the difference between the first expected required polish time and the second expected required polish time. For the initial period at a beginning of a polishing operation, no pressure is applied to whichever of the first substrate and the second substrate has a lesser expected required polish time while simultaneously pressure is applied to whichever of the first substrate and the second substrate has a greater expected required polish time. After the initial period, pressure is applied to both the first substrate and the second substrate.
Abstract:
A difference between a first expected required polish time for a first substrate and a second expected required polish time for a second substrate is determined using a first prepolish thickness and a second pre-polish thickness measured at an in-line metrology station. A duration of an initial period is determined based on the difference between the first expected required polish time and the second expected required polish time. For the initial period at a beginning of a polishing operation, no pressure is applied to whichever of the first substrate and the second substrate has a lesser expected required polish time while simultaneously pressure is applied to whichever of the first substrate and the second substrate has a greater expected required polish time. After the initial period, pressure is applied to both the first substrate and the second substrate.
Abstract:
A powder dispensing apparatus is disclosed in which the apparatus includes a drum assembly 2. The drum assembly includes a support portion 10 and a foil 14 which are linearly movable relative to one another. The foil 14 has a plurality of through-apertures 25, and the support portion 10 includes a corresponding number of apertures 20. The base of each aperture 20 in the support portion is closed off by a piston 24. The apertures 25, 20 are aligned at a filling position where powder can fill a compartment. The foil 14 is then translated relative to the support portion 10 in order to close the compartments. The drum 2 can be rotated through 180° to a dispensing position. The foil 14 is moved so that the apertures 25, 20 are aligned and the pistons 24 can be used to dispense powder into a receptacle.