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:
Mar. 29, 2005
Filed:
Jul. 21, 2003
Annaniy Berenshteyn, Ocean, NJ (US);
Rajesh K. Maheshwari, Millburn, NJ (US);
Annaniy Berenshteyn, Ocean, NJ (US);
Rajesh K. Maheshwari, Millburn, NJ (US);
Schering Corporation, Kenilworth, NJ (US);
Abstract
A powder dispenser includes: a dispenser housing having including a hopper for holding a powder; an outlet tube; a slider slidably mounted with respect to the dispenser housing between a feed position and a dispense position, the slider including a holding member for receiving powder supplied through a dispensing opening of the hopper in the feed position, the holding member having pores which permit gas passage therethrough but which prevent powder passage therethrough, and a vacuum passage for removing gas trapped by the powder in the holding member, through the holding member wall; an angled bore for supplying a pressurized gas at an angle to the hopper to provide a swirling effect; and a gas supply bore in the dispenser housing for supplying a pressurized gas to the receptacle portion in the dispense position to force the powder from the receptacle portion to the outlet tube.