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:
Nov. 22, 1977
Filed:
Jul. 16, 1973
John J Waskiewicz, Wauwatosa, WI (US);
John H Winston, Menomonee Falls, WI (US);
Outboard Marine Corporation, Waukegan, IL (US);
Abstract
Disclosed herein is an apparatus for uniformly feeding particulate matter into a carrier gas, which apparatus includes a particulate matter inlet duct communicating with a carrier gas conduit, a device for introducing into the conduit upstream of the inlet duct, a flow of carrier gas which is maintained under constant pressure prior to introduction, a particulate matter pump communicating with the inlet duct and operable at a variable pumping rate to supply particulate matter through the inlet duct to the conduit, a device for sensing the pressure in the conduit, and a control connected to the pressure sensing means for varying the pumping rate of the pump in accordance with pressure variation in the conduit to maintain a uniform feed of particulate matter into the carrier gas flowing in the conduit.