Abstract: An ion-exchange composition suitable for use in ion exchange chromatography, comprising neutral vinyl polymer support particles irreversibly bound to a dispersant having ionizable sites which are un-ionized at a neutral pH and which are ionized under highly acidic or highly basic conditions, and fine layering particles functionalized with ion-exchanging sites on the surfaces thereof. A portion of the ionizable sites are ionized and bound electrostatically to a portion of the fine layering particles ion-exchanging sites, producing a support particle-dispersant-fine layering particle complex.

Abstract: An ion-exchange composition suitable for use in ion exchange chromatography, comprising neutral vinyl polymer support particles irreversibly bound to a dispersant having ionizable sites which are un-ionized at a neutral pH and which are ionized under highly acidic or highly basic conditions, and fine layering particles functionalized with ion-exchanging sites on the surfaces thereof. A portion of the ionizable sites are ionized and bound electrostatically to a portion of the fine layering particles ion-exchanging sites, producing a support particle-dispersant-fine layering particle complex.

Abstract: A combination cookvessel and cookvessel-lid-and-handle device comprising a lid main portion having an offset handle member above the lid main portion. The offset handle member having a first end adjacent to and spaced above the lid edge, a gripping portion extending from the first end and over the lid main portion, a protrusion extending toward the lid main portion and engageable with the underside of the rim and a handle-connecting portion extending between the gripping portion and the lid main portion. The offset handle member suspends the cookvessel-lid-and-handle device on the rim above the open top of the cookvessel.

Abstract: A signal generating valve and timer assembly includes a valve slide and a controller. The controller is coupled to the valve and is adapted to engage the valve to move the valve from a first position to a second position. The valve generates a first signal in at least one of the first or second positions. Movement of the valve slide from the first position to the second position engages an actuator device to activate a switch on the timer to start the timer running for a pre-programmed time period. The timer generates a second signal at the expiration of the selected time period.

Abstract: A signal generating valve and timer assembly includes a valve slide and a controller. The controller is coupled to the valve and is adapted to engage the valve to move the valve from a first position to a second position. The valve generates a first signal in at least one of the first or second positions. Movement of the valve slide from the first position to the second position engages an actuator device to activate a switch on the timer to start the timer running for a pre-programmed time period. The timer generates a second signal at the expiration of the selected time period.