DIRECT VESSEL HEATING FOR DISSOLUTION TESTING
First Claim
1. A dissolution test vessel configured for direct vessel heating, comprising:
- a lateral wall disposed about a longitudinal axis of the vessel and comprising an upper end, a lower end axially spaced from the upper end, and an outside surface extending from the upper end to the lower end;
a resistive heating element bonded directly to the outside surface wherein the resistive heating element is integral with the lateral wall and non-removable therefrom, the resistive heating element comprising a first heating element end, a second heating element end, and a heating element section contiguously running from the first heating element end, over a heating zone of the lateral wall and to the second heating element end, the heating element section running along at least two different directions; and
a temperature-sensing element bonded directly to the outside surface wherein the temperature-sensing element is integral with the lateral wall and non-removable therefrom, the temperature-sensing element comprising a first sensing element end, a second sensing element end, and a sensing element section contiguously running from the first sensing element end, over a temperature sensing zone of the lateral wall and to the second sensing element end, the sensing element section running along at least two different directions.
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0 Petitions
Accused Products
Abstract
A dissolution test vessel configured for direct vessel heating includes a lateral wall, a resistive heating element, and a temperature-sensing element. The resistive heating element and the temperature-sensing element are bonded directly to the lateral wall, and may be formed by dispensing flowable materials onto the lateral wall. The resistive heating element includes a contiguous first heating element end, heating element section, and second heating element end. The temperature-sensing element includes a contiguous first sensing element end, sensing element section, and second sensing element end. The vessel may communicate with a heater control system, which may be provided with a dissolution test apparatus at which the vessel is mounted.
16 Citations
20 Claims
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1. A dissolution test vessel configured for direct vessel heating, comprising:
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a lateral wall disposed about a longitudinal axis of the vessel and comprising an upper end, a lower end axially spaced from the upper end, and an outside surface extending from the upper end to the lower end; a resistive heating element bonded directly to the outside surface wherein the resistive heating element is integral with the lateral wall and non-removable therefrom, the resistive heating element comprising a first heating element end, a second heating element end, and a heating element section contiguously running from the first heating element end, over a heating zone of the lateral wall and to the second heating element end, the heating element section running along at least two different directions; and a temperature-sensing element bonded directly to the outside surface wherein the temperature-sensing element is integral with the lateral wall and non-removable therefrom, the temperature-sensing element comprising a first sensing element end, a second sensing element end, and a sensing element section contiguously running from the first sensing element end, over a temperature sensing zone of the lateral wall and to the second sensing element end, the sensing element section running along at least two different directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A dissolution test apparatus configured for direct vessel heating, comprising:
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a vessel support member having an aperture; a heater control system; and a vessel mounted at the vessel support member, the vessel comprising; a lateral wall disposed about a longitudinal axis of the vessel and comprising an upper end, a lower end axially spaced from the upper end, and an outside surface extending from the upper end to the lower end; a resistive heating element bonded directly to the outside surface wherein the resistive heating element is integral with the lateral wall and non-removable therefrom, the resistive heating element comprising a first heating element end in signal communication with the heater control system, a second heating element end in signal communication with the heater control system, and an elongated heating element section contiguously running from the first heating element end, over a heating zone of the lateral wall and to the second heating element end, the heating element section running along at least two different directions; and a temperature-sensing element bonded directly to the outside surface wherein the temperature-sensing element is integral with the lateral wall and non-removable therefrom, the temperature-sensing element comprising a first sensing element end in signal communication with the heater control system, a second sensing element end in signal communication with the heater control system, and an elongated sensing element section contiguously running from the first sensing element end, over a temperature sensing zone of the lateral wall and to the second sensing element end, the sensing element section running along at least two different directions. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for fabricating a dissolution test vessel, the method comprising:
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depositing a first flowable material directly on an outside surface of a lateral wall of a vessel to form a resistive heating element integral with and non-removable from the lateral wall, the resistive heating element comprising a first heating element end, a second heating element end, and an elongated heating element section contiguously running from the first heating element end, over a heating zone of the lateral wall and to the second heating element end, the heating element section running along at least two different directions; depositing a second flowable material directly on the outside surface to form a temperature-sensing element integral with and non-removable from the lateral wall, the temperature-sensing element comprising a first sensing element end, a second sensing element end, and an elongated sensing element section contiguously running from the first sensing element end, over a temperature sensing zone of the lateral wall and to the second sensing element end, the sensing element section running along at least two different directions; and attaching a contact block to an upper end of the vessel and placing the contact block in electrical communication with the resistive heating element and the temperature-sensing element. - View Dependent Claims (18, 19, 20)
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Specification