Measuring and testing – Display or display device details
Reexamination Certificate
2000-11-09
2002-09-10
Raevis, Robert (Department: 2856)
Measuring and testing
Display or display device details
C362S023000
Reexamination Certificate
active
06446518
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention is directed to diagnostic gauges that are utilized in industrial applications, and in particular, to diagnostic gauges utilized in industrial locations that can be viewed and read in low and no light conditions.
2. Description of Related Art
Industrial diagnostic gauges, or diagnostic gauges, are required in numerous industrial applications. Many of these applications require the diagnostic gauges to be placed in locations that are difficult for a person to access. For example, a diagnostic gauge may be located in a radioactive or other hazardous location, e.g., nuclear power plants, biohazard laboratories; disposed high above the ground, e.g., on a tower of a petrochemical plant; located in close proximity to moving parts of a machine, or any other location that restricts a person desiring to read the diagnostic gauge from safely and easily approaching the diagnostic gauge.
The necessity of a person attempting to read the diagnostic gauge to get as close as possible to the diagnostic gauge is increased during times when little or no light is present, e.g., at night, when overhead lighting, either natural, e.g., sunlight, or artificial light, is unavailable, or when the diagnostic gauges are placed in obstructed areas. Generally, a diagnostic gauge cannot be accurately read at distances greater than about four feet when little or no light is present. Under these conditions, the person must take special precautions to approach the diagnostic gauge, e.g., put on special clothing to enter radioactive areas or read the diagnostic gauges in inclement weather; or climb ladders to reach the diagnostic gauge disposed high above the ground. Further, many times locating a diagnostic gauge desired to be read in low or no light conditions is very difficult.
Prior attempts to address the problem of reading diagnostic gauges in low or no light have been directed at adding either external lighting or internal lighting to the diagnostic gauge. External lighting requires leaving overhead lights on at all times or placing additional lighting focused on the diagnostic gauge. Internal lighting requires wiring the diagnostic gauge with electrical circuitry and/or batteries, to illuminate the diagnostic dial, or face. Both of these approaches increase the cost of the diagnostic gauge and/or the construction and maintenance of the additional wiring and equipment. In another prior attempt, the face and markings on the face of the diagnostic gauge utilize contrasting colors. For example, in one prior attempt, the face is white and the markings are black. In another attempt, the face is black in the markings are white. Neither of these prior approaches sufficiently assist a person to read the diagnostic gauge from a distance under low and no light conditions.
Accordingly, prior to the development of the present invention, there has been no industrial diagnostic gauge that can be read in low or no light conditions, method of reading an industrial diagnostic gauge in low or no light conditions, and method of manufacturing an industrial diagnostic gauge, which: do not require the presence of an electrical light source located internally within, or externally in close proximity to, the industrial diagnostic gauge; do not substantially increase the cost of the industrial diagnostic gauge; permit the industrial diagnostic gauge to be easily located; and permit the industrial diagnostic gauge to be read from a distance. Therefore, the art has sought an industrial diagnostic gauge that can be read in low or no light conditions, method of reading an industrial diagnostic gauge in low or no light conditions, and method of manufacturing an industrial diagnostic gauge, which: do not require the presence of an electrical light source located internally within, or externally in close proximity to, the industrial diagnostic gauge; do not substantially increase the cost of the industrial diagnostic gauge; permit the industrial diagnostic gauge to be easily located; and permit the industrial diagnostic gauge to be read from a distance.
SUMMARY OF INVENTION
In accordance with the invention the foregoing advantages have been achieved through the present industrial diagnostic gauge comprising: a housing; a diagnostic member; a face, wherein the face includes at least one luminescent material; and at least one hand operatively associated with the diagnostic member.
In a further embodiment of the industrial diagnostic gauge, the at least one hand may include at least one reflective material. In another embodiment of the industrial diagnostic gauge, the face may include at least one marking. In still another embodiment of the industrial diagnostic gauge, the at least one marking may include at least on reflective material. In an additional embodiment of the industrial diagnostic gauge, the industrial diagnostic gauge may measure pressure. In still another embodiment of the industrial diagnostic gauge, the industrial diagnostic gauge may measure temperature.
In accordance with the invention the foregoing advantages have also been achieved through the present industrial diagnostic gauge comprising: a housing; a diagnostic member; a face having at least one marking, wherein the at least one marking includes at least one reflective material; and at least one hand operatively associated with the diagnostic member.
In a further embodiment of the industrial diagnostic gauge, the at least one hand may include at least one reflective material. In another embodiment of the industrial diagnostic gauge, the face may include at least one luminescent material. In an additional embodiment of the industrial diagnostic gauge, the industrial diagnostic gauge may measure pressure. In still another embodiment of the industrial diagnostic gauge, the industrial diagnostic gauge may measure temperature.
In accordance with the invention the foregoing advantages have also been achieved through the present industrial diagnostic gauge comprising: a housing; a diagnostic member; a face; and at least one hand operatively associated with the diagnostic member, wherein the at least one hand includes at least one reflective material.
In a further embodiment of the industrial diagnostic gauge, the face may include at least one luminescent material. In another embodiment of the industrial diagnostic gauge, the face may include at least on marking. In an additional embodiment of the industrial diagnostic gauge, the industrial diagnostic gauge may measure pressure. In still another embodiment of the industrial diagnostic gauge, the industrial diagnostic gauge may measure temperature.
In accordance with the invention the foregoing advantages have also been achieved through the present industrial diagnostic gauge comprising: a housing; a diagnostic member; a face, wherein the face includes at least one reflective material; and at least one hand operatively associated with the diagnostic member.
In a further embodiment of the industrial diagnostic gauge, the at least one hand may include at least one luminescent material. In another embodiment of the industrial diagnostic gauge, the face may include at least one marking. In an additional embodiment of the industrial diagnostic gauge, the at least one marking may include at least one luminescent material.
In accordance with the invention the foregoing advantages have also been achieved through the present industrial diagnostic gauge comprising: a housing; a diagnostic member; a face having at least one marking, wherein the at least one marking includes at least one luminescent material; and at least one hand operatively associated with the diagnostic member.
In a further embodiment of the industrial diagnostic gauge, the at least one hand may include at least one luminescent material. In another embodiment of the industrial diagnostic gauge, the face may include at least one reflective material.
In accordance with the invention the foregoing advantages have also been achieved through the present industrial diagnostic gauge comprising: a housing;
Ditta Sam M.
Hamilton Michael G.
Andrews & Kurth L.L.P.
Matheny Anthony F.
Raevis Robert
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