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. 28, 2002
Filed:
Jan. 24, 2001
Warren S. Daansen, Nashua, NH (US);
Other;
Abstract
A pump for dispensing particulate-ladened or heavily viscous fluids such as grit-ladened or granulated hand soap or lotion, has a compressible pump cavity with an inlet and a streamlined outlet, with a backflow check valve associated with the inlet and a nozzle assembly connected to the outlet. In the nozzle assembly, a spring loaded outflow ball valve resists outflow until sufficient fluid pressure is applied from the pump cavity. A minimally flow restrictive spring base support structure holds the base of the spring apart from the nozzle tip, creating a fluid flow path around the check ball and spring to the nozzle tip.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile