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:
Jun. 11, 2002
Filed:
Oct. 15, 1999
Tony F. Zahrah, Fairfax, VA (US);
Rajkumar Raman, Waldorf, MD (US);
Phillip A. Parrish, Fairfax, VA (US);
Roderick Rowland, Fairfax, VA (US);
Matsys, Springfield, VA (US);
Abstract
A delivery and filling system for filling a cavity with a particulate material is disclosed. The system in one embodiment includes a hopper; a transport device, and a delivery chute. The hopper, transport device, and delivery chute each may have a porous distributor plate which partitions them into a first chamber and a second chamber. The system is hooked to a compressed gas source connected to the porous distributor plate and a fluidizer. A gas-control unit is provided including a pressure regulator, pressure sensor, and flow metering solenoid valve to independently regulate the flow of gas to the porous distributor plate and the fluidizer of the system independently.