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. 08, 2010
Filed:
Jun. 23, 2006
Terrence M. Fulkerson, Brunswick Hills, OH (US);
Stephen G. Nemethy, Lakewood, OH (US);
Terry John Thompson, Wakeman, OH (US);
Jeffrey A. Perkins, Amherst, OH (US);
Joseph G. Schroeder, North Royalton, OH (US);
Terrence M. Fulkerson, Brunswick Hills, OH (US);
Stephen G. Nemethy, Lakewood, OH (US);
Terry John Thompson, Wakeman, OH (US);
Jeffrey A. Perkins, Amherst, OH (US);
Joseph G. Schroeder, North Royalton, OH (US);
Nordson Corporation, Westlake, OH (US);
Abstract
A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.