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:
Feb. 28, 2017
Filed:
Apr. 04, 2012
Applicants:
Donald D. Foster, St. Charles, MO (US);
Philip L. Nelson, Wildwood, MO (US);
Inventors:
Donald D. Foster, St. Charles, MO (US);
Philip L. Nelson, Wildwood, MO (US);
Assignee:
WestRock Dispensing Systems, Inc., Norcross, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 88/54 (2006.01); B05B 11/00 (2006.01); B05B 9/043 (2006.01); B05B 12/08 (2006.01);
U.S. Cl.
CPC ...
B05B 11/304 (2013.01); B05B 11/3011 (2013.01); B05B 11/3064 (2013.01); B05B 11/3077 (2013.01); B05B 9/043 (2013.01); B05B 11/305 (2013.01); B05B 11/3009 (2013.01); B05B 11/3016 (2013.01); B05B 11/3043 (2013.01); B05B 11/3045 (2013.01); B05B 12/085 (2013.01); B65D 88/54 (2013.01);
Abstract
Pre-compression valve systems for trigger sprayers include one-piece valve systems having both check and pre-compression valves or multiple component valve systems. The pre-compression valve is positioned in a vertical cylinder, and may have a flat, concave, or convex surface.