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Publication numberUST993001 I4
Publication typeGrant
Application numberUS 06/054,514
Publication dateApr 1, 1980
Filing dateJul 3, 1979
Priority dateJul 3, 1979
Publication number054514, 06054514, US T993001 I4, US T993001I4, US-I4-T993001, UST993001 I4, UST993001I4
InventorsRobert F. McCarthy
Original AssigneeThe Proctor & Gamble Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Free body automatic laundry additive dispenser
US T993001 I4
Abstract
A dual-acting free body automatic dispenser for dispensing laundry additives into automatic washing machines. The dispenser comprises an assemblage of three major elements: a hollow, spherical container provided with an orifice; a resilient valve seated within the orifice and a rigid stempiece extending axially through the valve. The valve is positioned on the stempiece such that when seated a portion of the stempiece protrudes outwardly beyond the exterior of the container. A mass is attached to the interiorly extending end of the stempiece.
The consumer operates the dispenser by filling it with laundry additive, manually seating the valve and placing the dispenser in the washing machine's basket. The dispenser is triggered during the first spin cycle. If the dispenser is oriented with the protruding portion of the stempiece in contact with the basket, centrifugal force causes the container to be forced outwardly relative to the stempiece, thereby unseating the valve. If the dispenser is oriented in any other position, centrifugal force acts on the mass attached to the stempiece and the moment of forces thereby effected unseats the valve. After the spin cycle, the dispenser falls from the wall and rinse water floods the dispenser, mixing with the additive.
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4982467 *May 11, 1989Jan 8, 1991The Clorox CompanyRinse release laundry additive and dispenser
US5267671 *Mar 16, 1992Dec 7, 1993The Procter & Gamble CompanyApparatus for dispensing rinse water additive in an automatic washing machine
US5314098 *Jun 24, 1993May 24, 1994The Procter & Gamble CompanyAutomatic dosing dispenser employing atmospheric vent to improve opening reliability
US5536421 *Jun 16, 1994Jul 16, 1996The Procter & Gamble CompanyMethod for using solid particulate fabric softener in automatic dosing dispenser
US5768918 *Apr 7, 1997Jun 23, 1998The Procter & Gamble CompanyRinse water additive dispenser
US5792219 *Mar 26, 1996Aug 11, 1998The Procter & Gamble CompanyMethod for using solid particulate fabric softener in automatic dosing dispenser
US6681963Apr 19, 2002Jan 27, 2004The Procter & Gamble CompanyApparatus for dispensing rinse water additive in an automatic washing machine
US6736294Sep 18, 2002May 18, 2004The Procter & Gamble CompanyApparatus for dispensing rinse water additive in an automatic washing machine
US7007862Nov 7, 2003Mar 7, 2006The Clorox Co.Rinse release dispensing device
US20050109860 *Nov 7, 2003May 26, 2005Ken ChiangRinse release dispensing device
WO1995000695A1 *Jun 16, 1994Jan 5, 1995The Procter & Gamble CompanyAutomatic dosing dispenser employing atmospheric vent to improve opening reliability
Classifications
U.S. Classification68/17.00R, 222/463, 68/207, 222/500
International ClassificationD06F39/02
Cooperative ClassificationD06F39/024
European ClassificationD06F39/02C