The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1976
Filed:
Oct. 15, 1974
Vaidevutis C Draugelis, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Toner within a cartridge is alternately aerated, and expelled from the cartridge. The toner cartridge is connected to a dispensing manifold located within and extending across a developer of an electrostatic reproduction machine. To dispense toner from the cartridge, the cartridge is pressurized so as to expel toner through a plurality of orifices in the manifold without aerating the toner as it is being expelled. After a quantity of toner has been dispensed, the toner within the cartridge is aerated, after which toner is once again expelled through the orifices. In the embodiment illustrated herein, a resilient toner cartridge is used, the cartridge being mounted at a remote location and connected to the manifold by a tube. A mechanism periodically deforms the cartridge to expel toner through orifices in the manifold. When the cartridge is allowed to return to its undeformed shape, air enters the cartridge to aerate the toner therein to prevent the bridging and caking of the toner.