Phoqus Pharmaceuticals Limited

Ravi & Associates

Colorep, Inc.

Phoqus Limited

David Hoover Feather

Douglas Howard Nelson

Ravi B Sahay

Marshall Whiteman

Linda Ann Reeves

Jack Michael Gazza

Jon S Guy

Martin David Hallett

Romaine R Maiefski

A method of electrostatically applying a powder material to a solid dosage form comprises the following steps: applying a bias voltage to generate an electric field between a source () of the powder material and the solid dosage form (); applying an electrostatically charged powder material to the solid dosage form (), the powder material being driven onto the solid dosage form () by the interaction of the electric field with the charged powder material, an the presence of the charged powder material on the solid dosage form serving to build up an electric charge on the solid dosage form () and thereby reduce the electric field generated by the bias voltage between the source () of powder material and the solid dosage form (), and continuing the application of the electrostatically charged powder material to the solid dosage form () until the electric field between the source () of powder material and the solid dosage form is so small that the driving of the powder material by the electric field onto the solid dosage form () is substantially terminated.

Electrostatic application of powder material to solid dosage forms in an electric field

An apparatus for electrostatically applying a powder material to a solid dosage from includes a source () of charged powder material, a support assembly () for supporting the solid dosage form () with a front face in the vicinity of the source of powder material and facing the source of powder material, the support assembly () including an electrically conducting member () in the vicinity of the rear face of the solid dosage form and an electrically conducting shield () disposed closely around the solid dosage from () between the front face and the rear face of the solid dosage form, and means () for creating a potential difference between the source of powder material and the electrically conducting member and for maintaining the electrically conducting shield at a potential more similar to that of the source of powder material than to that of the electrically conducting member.

Electrostatic application of powder material to solid dosage forms utilizing an electrically conductive shield

In a method of electrostatically applying a powder material to a solid dosage form, charged powder material is applied to a photoconductive drum ( ), is transferred to an intermediate belt ( ) and then to a solid dosage form ( ). The belt ( ) makes contact with the solid dosage form ( ).

Electrostatic application of powder material to solid dosage forms

A modular copier/printer or similar image forming apparatus of the type having an image transfer body in the form of a drum or belt allows documents to be reproduced in a paper discharge mode which discharges paper sheets, or recording media, in page-sequential order. When an automatic two-sided copy mode is selected, the apparatus automatically sets up the page sequential paper discharge mode to a 'collation mode' through a minimum number of sorter bins which has been optimally designed to correspond with the shortest two-sided copy loop. Hence, when mixed black-and-white documents and color documents are reproduced together in the automatic copy mode, paper sheets exit the apparatus in the correct page order. As a result of this automatic change in operating modes, fewer 'skip' frames need be introduced during the copying operation, thereby enabling the copier to produce multiple collated copies of the multipage document very efficiently.

Modular multi-function image-forming apparatus for printing mixed sided

An electrically switchable magnetic brush for use in toner deposition or removal devices used in imaging machines of the electrostatic type. When energized by a multiphase alternating current power source or a brushless direct current power source rotatably mounted drum (9) requires no external driving force and is self-propelled.

Switchable self-propelled magnetic brush

A liquid electrophotographic development system has a plurality of removable cartridges mounted on a rotatable support for selective engagement with an electrophotographic member to be developed. Each cartridge has a liquid developer reservoir and a flexible toner concentrate container from which concentrate is supplied to the developer in the reservoir as needed. A fluted roll pumps developer in a uniform manner from the reservoir to the electrophotographic member. After depletion of the toner concentrate and developer, any developer remaining in the cartridge can be pumped into the flexible container to prevent spillage on disposal of the cartridge. The cartridge housing has only one opening and minimum-size passages between the reservoir and the opening to inhibit evaporation of developer liquid.

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San Diego, CA, United States of America

David Hoover Feather