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:
Jun. 23, 1998
Filed:
Apr. 07, 1997
Gary E McKibben, Middletown, OH (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
An improved rinse water additive dispenser for an automatic washer has a substantially rigid body having a resilient portion and an internal volume. The dispenser further includes an opening therein and a valve for sealing the opening closed so that the rinse water additive is maintained within the dispenser until the valve is acted upon by centrifugal force applied to the dispenser during a spin cycle of the automatic washer to unseat the valve. The resilient portion provides for volumetric expansion and contraction of the dispenser when the dispenser is placed in variable temperature water. The volumetric expansion and contraction substantially relieves an air pressure differential between ambient and the internal volume so that the centrifugal force unseats the valve without interference from the pressure differential. The opening may be in the resilient portion or in the substantially rigid body.