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:
May. 11, 2010
Filed:
Oct. 18, 2006
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:
Meadwestvaco Calmar, Inc., Grandview, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 88/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
A manually operated trigger sprayer is constructed with a reduced number of parts and in a novel manner in which the conventional metal coil spring is replaced with a pair of plastic bowed springs that are integral with the piston rod and the pump piston is connected to the piston rod by a pivoting connection that prevents radial force components acting on the piston rod from the springs from being transferred to the pump piston.