The Clorox Company

Brita Gmbh

Elizabeth Knipmeyer

Roger P Reid

Kerry D Azelton

Stephen R Dennis

Bruce D Saaski

Sarah Coulter

Andrew Kilkenny

Toni L Lynch

The invention relates to free floating automated toilet bowl cleaning devices that dispense a volatile composition (e.g., a fragrance) into air surrounding the toilet and dispense a cleaning composition (e.g., hypohalite bleach) into toilet tank water on which the device freely floats. The device includes a first compartment for housing the volatile composition. The first compartment is permeable to air, with the permeable portion of the first compartment positioned above a water line when the device is floated. The device includes a second compartment for housing the cleaning composition. The second compartment includes one or more inlets through the device body to allow fluid communication with the liquid on which the device floats during use. A floatation member is positioned above the second compartment (e.g., between the first and second compartments).

Floating automatic toilet bowl cleaning device

A gravity-fed carbon block water filter in one embodiment includes a filter block comprising multiple sub-blocks each comprising filter media walls surrounding and defining a cavity for receiving fluid. Each of the sub-blocks is connected to at least one other of the sub-blocks by filter media of which the filter block is made. In one approach, the filter media includes about 20-90 wt % activated carbon, and about 5-50 wt % binder. In another approach, a lead concentration in a final liter of effluent water filtered by the filter is less than about 10 &#x3bc;g/liter after about 151 liters (40 gallons) of source water filtration, the source water having a pH of 8.5 and containing 135-165 ppb total lead with 30-60 ppb being colloidal lead greater than 0.1 &#x3bc;m in diameter. A gravity-fed water filter in other embodiments has no specified shape but achieves a FRAP factor of about 350 or less.

Gravity flow filter

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Pleasanton, CA, United States of America

Elizabeth Knipmeyer