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:
Mar. 26, 2002
Filed:
Apr. 27, 2000
Ronald F. Englhard, Mission Viejo, CA (US);
Hayes Products, LLC, Buena Park, CA (US);
Abstract
A pump assembly including a pump attachment adapted to form a nonaerosol pump sprayer, and a method of using the same. The apparatus includes an attachment having a pump sprayer that is pressurized on the upstroke. The attachment includes a body that defines a chamber, a shaft moveable between a first and second position in the body, a piston, a first valve and a second valve. The first valve permits the flow of fluid into the chamber and restricts the flow of fluid out of the chamber. The second valve moves between an open position-permitting the flow out of the chamber and a biased closed position restricting the flow out of the chamber. When the shaft is moved to the first position, the shafts moves the second valve from the closed position to the open position. An apparatus with a bleeder orifice for automatically releasing pressure is also disclosed.