This invention is directed to a sign for use in hazardous environments. More particularly, this invention is directed to an interchangeable sign assembly and method for interchanging the signs in a changing hazardous environment.
In nuclear facilities and other hazardous environments, signs are often used to indicate to individuals what level of protective gear or caution they need to adhere to before entering a particular area of the facility. For example, there may be a sign that reads “CAUTION HIGH RADIATION AREA” to indicate that personnel must be briefed about the conditions before entering said room.
Another sign may read “STOP” to indicate that no one is to enter that area of the facility. Other signs may be used to indicate that the area of the facility is safe.
In practice, an individual must go to the sign and physically take the sign off and then replace it with a new sign when the circumstances of that area of the facility changes. This practice is tedious, time-consuming, inefficient, and is not cost-effective.
Thus, it would be beneficial to find a solution that provides a quick and efficient means for changing the message on the sign for individuals entering an area of the facility that has varying hazard levels.
Accordingly, it is the subject of this invention to provide interchangeable signs, an interchangeable sign assembly, and a method for quickly and efficiently interchanging the signs. In particular, the present invention provides a placards or signs that include all of the necessary signs for the nuclear facility or other hazardous environment. From there, the signs can be quickly, easily, and efficiently changed by flipping the signs up or down to meet the condition of the area being entered.
An interchangeable placard assembly is disclosed comprising: a flip placard assembly including at least one top flip placard connected to at least one bottom flip placard such that the at least one top flip placard and at least one bottom flip placard can be raised or lowered; a placard support assembly for supporting the flip placard assembly wherein the placard support assembly includes a bottom placard support connected to a middle placard support connected to a top support placard; and a clear cover connected to the bottom placard support, wherein the clear cover is connected to the bottom placard support by a top horizontal adhesive strip and a bottom horizontal adhesive strip.
As can be seen in
In use, top flip placard 30 and bottom flip placard 35 of flip placard assembly 15 both have indicia to caution people that are about to enter a room with changing levels of hazard in it. Bottom flip placard 35 may have indicia indicating the particular warning level. At a facility, a user may rotate the flip placards up or down to change the messaging. When in the down position, the flip placard is bottom flip placard 35, but when rotated around the hinge upwards, it becomes top flip placard 30. The first side of bottom flip placard 35 will have certain indicia on it and when it is flipped or rotated upwards, the second side will have different indicia on it and in this position, it becomes top flip placard 30. In this way, when the level of hazard inside a particular part of a facility changes, the flip placards can be easily rotated upwards or downwards to let people know what safety precautions must be taken prior to entering.
The above can be seen in
In a preferred embodiment, the flip assembly 20 includes at least one 81-clip made of stainless steel to hold the flip placards in place from flipping on their own. The lever of the 81-clip of flip assembly 20 is capable of rotating upwards to allow the flip placards to be moved up or down depending on which message is needed. The lever of 81-clip of flip assembly 20 can then be rotated downward to lock the flip placard in place. Different shapes for the flip placards may indicate different warning levels with the traditional octagon being used for the “STOP” sign warning.
The sign assembly 10 of
In
In another embodiment, the support placards 40, 45, and 50 are made of 12 GA (0.080″) (A1 5052 H32 grade) aluminum. In another embodiment, the flip placards are made of 0.062″ poly plastic.
In one embodiment, a placard support assembly 55 is provided and preferably has a thickness of ⅛″ and is made of aluminum. The bottom, middle, top placard supports 40, 45, 50, may be any size or shape, but in a preferred embodiment, the placard supports are 12″ by 6″.
In one embodiment, a placard support assembly 55 has a width of 12″ at the top and 8″ at the bottom and is 19″ in length, wherein the bottom width narrows at 6.854″ from the bottom. Thus, bottom placard support 50 is narrower than top placard support 40 and middle placard support 45. In this embodiment, bottom placard support 40, middle placard support 45, and top placard support 50, are combined into one placard support rather than being individual placard supports.
The placard support assembly 55 also includes four cutout portions: left bottom cutout portion 65a, left top cutout portion 65b, right bottom cutout portion 70a, and right top cutout 70b portion. These cutout portions are for receiving hinge 25 to connect the placard support assembly 55 to top flip placard 30 and bottom flip placard 35. Theses cutout portions are also present in the top and bottom flip placards 30, 35.
In one embodiment, as shown in
The placard support assembly 55 can be made by using a CNC plasma cutting machine. In one embodiment, the aluminum may be powder coated in order to provide for a longer lifetime. In another embodiment, the bottom placard support 40 is not included.
UV graphic 3D printing is used in order to create the particular warning on the flip placards. In another embodiment, the top placard support 50 includes indicia and in this case it serves the same function as the top flip placard 30.
The flip placards are attached to a placard support assembly 55 by hinges 25. In one embodiment, the flip placards are made of polycarbonate plastic and include indicia.
As can be imagined, while the description of the interchangeable sign and method for interchanging the signs has been described for use in a nuclear facility, the sign may be useful at any hazardous environment or facility. For example, the interchangeable sign may be used at any DOE facility, at hospitals or other medical facilities, nanotechnology fabrication facilities, processing plans, milling plants, laundering facilities, prescreening facilities, or decontamination facilities.
In one illustrative example the sign assembly 10 includes several top flip placards and bottom placards. In this example, the sign assembly 10 is used in a nuclear facility. Top placard support 50 has written indicia thereon. The written indicia reads GRAVE DANGER and bottom flip placard 35 has written indicia reading VERY HIGH RADIATION AREA RADIATION PROTECTION ESCORT AND BRIEFING REQUIRED FOR ENTRY. The bottom flip placard 35 can be rotated around hinges 25 and flipped upward such that bottom flip placard 35 becomes top flip placard 30 and has written indicia reading CAUTION and the next visible bottom flip placard 35 has written indicia reading LOCKED HIGH RADIATION AREA. When this bottom flip placard 35 is flipped up into position as top flip placard 30, the written indicia of top flip placard 30 reads CAUTION with the newly visible bottom flip placard 35 reading HIGH RADIATION AREA. On the next set of flip placards, the top flip placard 30 reads caution and the bottom flip placard 35 reads RADIATION AREA. In this example, there are a total of three flip placards.
It will be appreciated by those skilled in the art that while the interchangeable sign assembly and method for changing signs has been described in detail herein, the invention is not necessarily so limited and other examples, embodiments, uses, modifications, and departures from the embodiments, examples, uses, and modifications may be made without departing from the process and all such embodiments are intended to be within the scope and spirit of the appended claims.
This application claims priority to U.S. Provisional Patent Application having Ser. No. 62/951,204, filed on Dec. 20, 2019, the entire disclosure of which are hereby incorporated herein by reference.
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588631 | Brown | Aug 1897 | A |
1107251 | Birdsell | Aug 1914 | A |
1159801 | Rosenzweig | Nov 1915 | A |
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56113856 | Sep 1981 | JP |
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Number | Date | Country | |
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20210192980 A1 | Jun 2021 | US |
Number | Date | Country | |
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62951204 | Dec 2019 | US |