Analysis vessel enclosing an anchored ring of solid reagent

Claim 3

An analysis vessel for holding fixed therein a quantity of solid material containing a reagent, the material having been introduced into the vessel initially in liquid form, the analysis including observation of the reaction between the substance being analyzed and the reagent when the substance is placed in said vessel, said vessel comprising: a walled enclosure having sides, a top opening and a bottom and having additionally an annular portion extending outwardly about the periphery of said enclosure adjacent its bottom, said annular portion forming a tubular channel facing and communicating with the interior of said enclosure, the channel having predetermined horizontal and vertical dimensions which are a minor fraction of the horizontal and vertical dimensions, respectively, of the enclosure, the dimensions of the channel enabling the chaNnel to accumulate the material containing the reagent when placed in liquid form in said enclosure, and upon dessication to form a solid mass which is locked into said channel.

Claim 4

An analysis vessel for holding fixed therein a quantity of solid material containing a reagent, the material having been introduced into the vessel initially in liquid form, the analysis including observation of the reaction between the substance being analyzed and the reagent when the substance is placed in said vessel, said vessel comprising: a walled enclosure having sides, a top opening and a bottom and having additionally an annular portion extending outwardly about the periphery of said enclosure adjacent its bottom, said annular portion forming a tubular channel facing and communicating with the interior of said enclosure, the channel having predetermined horizontal and vertical dimensions which are a minor fraction of the horizontal and vertical dimensions, respectively, of the enclosure, the dimensions of the channel enabling the chaNnel to accumulate the material containing the reagent when placed in liquid form in said enclosure, and upon dessication to form a solid mass which is locked into said channel.

Claim 5

The analysis vessel of claim 2 wherein the sides of the walled enclosure are substantially in the form of a truncated bell-shape with the top opening being adjacent the truncated portion thereof.

Claim 6

The vessel of claim 2, further comprising: said channel having dimensions sufficiently small to cause the liquid material containing the reagent to be drawn into said channel by capillary action.

Claim 7

The analysis vessel of claim 2 in which said enclosure further comprises: a. the sides of the enclosure being an annular vertically extending sidewall, b. the annular portion including i. an outwardly flared, generally horizontal lip extending peripherally about the lower end portion of said sidewall, ii. an annular skirt extending downwardly around the outer peripheral edge of said lip; and c. the bottom including a generally horizontal base portion secured to the lower end of said skirt, the lip, skirt and base portion beneath said lip defining said annular channel portion in which the solid mass of reagent can be deposited in the form of a ring upon dessication of the material containing the reagent.

Claim 8

A testing device for analyzing a substance comprising: a. an analysis vessel including a walled enclosure having sides, a top opening and a bottom and having additionally an annular portion extending outwardly about the periphery of said enclosure adjacent its bottom, said annular portion forming a tubular channel facing and communicating with the interior of said enclosure, the channel having predetermined horizontal and vertical dimensions which are a minor fraction of the horizontal and vertical dimensions, respectively, of the enclosure, the dimensions of the channel enabling the channel to accumulate the material containing the reagent when placed in liquid form in said enclosure, and upon dessication to form a solid mass which is locked into said channel, and b. a solid material containing a reagent disposed within the tubular channel, the solid material having been introduced into the vessel initially in liquid form, and upon dessication having been formed into a solid mass locked into the channel.

Claim 9

A testing device for analyzing a substance comprising: a. an analysis vessel including a walled enclosure having sides, a top opening and a bottom and having additionally an annular portion extending outwardly about the periphery of said enclosure adjacent its bottom, said annular portion forming a tubular channel facing and communicating with the interior of said enclosure, the channel having predetermined horizontal and vertical dimensions which are a minor fraction of the horizontal and vertical dimensions, respectively, of the enclosure, the dimensions of the channel enabling the channel to accumulate the material containing the reagent when placed in liquid form in said enclosure, and upon dessication to form a solid mass which is locked into said channel, and b. a solid material containing a reagent disposed within the tubular channel, the solid material having been introduced into the vessel initially in liquid form, and upon dessication having been formed into a solid mass locked into the channel.