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:
Aug. 28, 2018
Filed:
May. 27, 2015
Nordson Corporation, Westlake, OH (US);
Terrence M. Fulkerson, Brunswick, OH (US);
Terry John Thompson, Wakeman, OH (US);
Jeffery Edward Dailidas, Barrington, IL (US);
Kenneth A. Keeger, Grafton, OH (US);
Joseph G. Schroeder, North Royalton, OH (US);
Nordson Corporation, Westlake, OH (US);
Abstract
A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.