CA1230787A - Dual plate manually settable bistable indication device - Google Patents
Dual plate manually settable bistable indication deviceInfo
- Publication number
- CA1230787A CA1230787A CA000428271A CA428271A CA1230787A CA 1230787 A CA1230787 A CA 1230787A CA 000428271 A CA000428271 A CA 000428271A CA 428271 A CA428271 A CA 428271A CA 1230787 A CA1230787 A CA 1230787A
- Authority
- CA
- Canada
- Prior art keywords
- plate
- indicia
- room
- checked
- plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Audible And Visible Signals (AREA)
Abstract
A B S T R A C T
Disclosed is a device for indicating a change in the status of a matter to be checked, upon the occurrence of a specified event. The device comprises a first plate adapted to be attached proximate a matter to be checked and having an outer surface and a second plate having an inner and outer surface, the outer surface bearing prominantly visible predetermined first indicia. At least one of the first plate outer surface and the second plate inner surface has prede-termined second indicia. The second plate is selectively movable relative to the first plate, so as to expose and make prominantly visible the second indicia and obscure the first indicia. A particular embodiment provides a device for indicating that an adjoining room to the checker device has been checked in an emergency. In the normal mode the second plate obscures the visibility of the first indicia.
After a room has been checked, the second plate is moved so as to expose the first indicia. In the normal mode the second indicia is used to designate the nature of the dis-abilities of the occupants of a particular room.
Disclosed is a device for indicating a change in the status of a matter to be checked, upon the occurrence of a specified event. The device comprises a first plate adapted to be attached proximate a matter to be checked and having an outer surface and a second plate having an inner and outer surface, the outer surface bearing prominantly visible predetermined first indicia. At least one of the first plate outer surface and the second plate inner surface has prede-termined second indicia. The second plate is selectively movable relative to the first plate, so as to expose and make prominantly visible the second indicia and obscure the first indicia. A particular embodiment provides a device for indicating that an adjoining room to the checker device has been checked in an emergency. In the normal mode the second plate obscures the visibility of the first indicia.
After a room has been checked, the second plate is moved so as to expose the first indicia. In the normal mode the second indicia is used to designate the nature of the dis-abilities of the occupants of a particular room.
Description
123078~
FIELD OF INVENTION
The invention pertains to a device for use in a checking system whereby the status of some matter may be simply and expediently indicated or accounted for. By way of example the invention provides a system whereby restricted or disabled occupants of an institution such as a hospital, can be checked and accounted for in case of an emergency such as in a fire. The invention may also be used by way of example as part of inventory control in manufacturing, warehousing, stores, libraries and the like, to indicate that inventory taking has been completed with respect to a particular item or particular items.
BACKGROUND OF THE INVENTION
With the present increase in the number of fires and ~he heightened awareness for safety both for the occupants and emergency personnel, it has become desirable to provide a system whereby all occupants of homes for the aged and the like, are accounted for in an emergency. The problem is particularly compounded in the instance of homes for the aged, since the residents are senior citizens and may suffer in varying degrees for disabilities due to age and illness. These ailments may include blindness, deafness, being confined to a wheelchair or being bedridden. The restricted residents may thus not be able to evacuate the premises without assistance in case o~ a fire.
Therefore, in the event of an emergency, for the safety of all concerned, it is desirable to provide a system whereby the orderly evacuation of the residents may be confirmed.
The usual procedure, at present, is for emergency personnel, such as the Fire Department personnel, to check each room of the residence ensuring that the residents are evacuated.
Upon confirmation that a room is empty a chalk mark is made on the door of the room indicating that the room has been checked.
The conditions under which the check is made may include the presence of smoke, water or other ha~ards. The chalk marks may ~23~ 37 therefore get erased or rubbed away, and in any event they are not clearly visible in a darkened or smoke filled hallway. The uncertainty created by the foregoing can result in confusion and duplication of effort by the emergency personnel.
During inventory taking, one or more people engage in checking all items in inventory and the checking includes all items of a particular nature whether for example, on the counter, or shelves in a store or on racks in a warehouse. It would be desirable to provide a simple yet expedient visual means of indicating when an item or items have been checked to avoid possible duplication of inventory taking.
Accordingly, it is an object of this invention to provide a device whereby the status of some matter is indicated or accounted for.
SUMMARY OF THE INVENTION
The invention in its broader aspects pertains to a device for indicating a change in the status of a matter to be checked, upon the occurrence of a speclfied event. The device comprises a first plate adapted to be attached proximate a matter to be checked and having an outer surface and a second plate having an inner and outer surface, the outer surface bearing prominantly visible predetermined first indicia. At least one of the first plate outer surface and the second plate inner surface bears predetermined second indicia. Means are ~L23~
provided to permit selective movement of tAe second plate relative to the first plate, so as to expose and make prominantly visible the second indicia and obscure the first indicia.
The invention particularly comprehends in one aspect a device for indicating that an adjoining room has been checked in an emergency situation, the device including a first plate and means by which the plate may be secured proximate to access means to the room and a second plate having inner and outer surfaces, the outer surface of the second plate having prominantly visible predetermined first indieia having reference to contents or objects normally within the room.
At least one of the first plate outer surface and second plate inner surface bearing predetermined second indicia having reference to a checked status. Means hingedly mount the second plate to the first plate so that the second plate is movable from a first position parallel with an-d overlying at least a portion of the first plate whereby the second indicia is obscured from view to a second position substantially planar with the first plate so as to expose and make prominantly visible the seeond indieia while obseuring the first indieia.
Manually releasable means releasably retain the plates in the first operative position.
In one partieular aspeet as ~iselosed, the present invention provides a deviee for indieating that an adjoining room to the eheeker deviee has been eheeked in an emergeney. The deviee is comprised of a first plate whieh has a front surfaee bearing prominently visible predetermined first indieia. The deviee may be fixed to a wall or door frame so as to show that it is representative of the adjoining room. The first indieia may be seleeted as a eheek mark symbol or the like. The deviee further has a seeond plate whieh is movable relative to the ~1 2~07~3~
first plate. The second plate bearing prominently visible second indicia on its outer surface. In the normal mode the second plate obscures the visibility of the first indicia.
However, after a room has been checked, the second plate is movable so as to expose the first indicia. In the normal mode the second indicia may be used to designate the nature of the disabilities of the occupants of a particular room. The device, in addition to having an application in homes for the aged, could also be adapted for use in nursing homes, senior citizen housing, hospitals, institutions for the handicapped, children's camps and prisons. In general the device could be adapted for use wherever residents are not mobile or easily visible.
The device may also be used in situations such as inventory taking where the indicia on the first plate, attached or affixed to a shelf or rack, is indicative of the checked status whereas the indicia on the second plate is indicative of the nature of the item in inventory to be checked.
Other uses will become apparent from the specification as a whole and in particular from the preferred embodiments o~ the invention set forth below ln conjunction with the drawings.
BRIEF DESCRIPTION OF THE D~AWINGS
FIGURE 1 is a perspective view of one embodiment of the device in a closed position.
30t787 FIGURE 2 is a front view of the embodiment of FIGURE 1 in open position.
FIGURES 3a, 3b, 3c, and 3d illustrate other indicia that may be applicable.
FI~URE 4 is a perspective view of a modification of the device.
FIGURE 5 is a side view, partially in section, of the embodiment of FIGURE 4.
FIGURE ~ i5 a perspective view of a further modification of the device.
FIGURE 7 is a perspective view of the plates associated with the embodiment of FIGURE 6.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The embodiment shown in Figures 1 - 3 is designed to be permanently fixed or attached on or adjacent the door of each room in an institution such as a hospital or nursing home providing a quick and clearly visible indication of the checked status of the room. More particularly the device 10 comprises a first plate 12 and a second plate 14 hinged at hinge 22.
Retaining means 24 hold the plates together in their normal position. Fastening screws 20 secure the device to a door or the adjoining wall or door frame associated with a room. Plate 14 carries indlcia 32 on it~ outer 9urface which indicia is indicative of the nature of the occupant~s) in the room.
Designation markings 30 may also be placed on the device to identify the purpose or use of the device.
As further displayed in Figure 2, the device may be opened by unfastening retaining means 24 which may be the type of two part separable materlal fastener (sold under the trade mark VELCRO ~ (24a and 24b). Hinge means 22, pre~erably a strip of flexible plastic, permits the second plate 14 to be folded down. In the open position or folded down ~230'~87 position of the second plate 14, one surface of the plate 12 becomes visible. This surface carries indicia 40 which may be of the form of a check mark.
Normally the device remains closed as shown in Figure 1, displaying the indicia 32. In the event of a fire, emer~ency personnel, for example, would be able to determine at first glance the nature of the disabilities of the occupants in the room. Once evacuation of the occupants from the roorn had been completed the second plate would be pulled down revealing indicia 40 namely, a check mark, indicia 32 no longer being visible. The check mark would indicate to subsequent passing emergency personnel that the door may be left closed, thus minimizing the danger of fire spreading because of open doors.
The siæe of the device is chosen so as to avoid giving a cluttered look, however, it should be large enough to be clearly visible. Additionally when the device is mounted, consideration is given to mounting it on or about eye level.
The device may be constructed of plastic, wood or preferably of fire-resistant material such as aluminum. The plastic or wood may be coated with fire-retardant material. The device may be coloured and marked for "emergency" use only. The colouring chosen for the preferred embodiment is red wlth white lettering - red being the colour associated with Fire Departments and emergency equipment. White lettering contrastlng the red background may be used to further alert people to the fact that t"he device is for emergency use only.
Displaying indicia 32 or like assists emergency personnel in determining the nature of the disability of the individual resident in the room. Other information may be displayed using representations such as those shown in Figures 3a - 3d. The information could be carried by adhesive stickers which could be altered every time the nature of the disabilities of the residents of the room changed. The markings 123(~ 37 on these stickers could be luminous and/or florescent.
Although not shown, an alternative to varying the indicia on plate 14 would be to provide a selective demountable mechanical hinge 22 so that plate 14 with indicia could be detached from plate 12 and a new pla~e 14 with a different indicia mounted for hinged connection with plate 12.
~ modified embodiment to the device is shown in Figures 4 and 5. Plates 12 and 14 are hinged together similar to the embodiment shown in Figures 1 - 3 but plate 14 includes a receptacle or bracket 50 secured to the front surface thereof which bracket holds plastic card 52. Indicia 32 is located on card 52 and card 52 may be selectively removed and replaced by a card carrying a different indicia as circumstances such as a change in the nature of the disability of the occupants of the room dictate. A friction fit between card 52 and the confines of bracket 50 would be all that is necessary to secure card 52 in bracket 50 even when plate 14 is pulled down.
The embodiment of Figures 4 and 5 also show a variation in the fastening means to nominally hold plates 12 and 14 together.
Rotatable screw stud 56 extends through plate 12 and has a wing nut-like outer end 58 whlch in one position passes through a like shaped aperture 60 in plate 14 and may then be rotated 90 to secure the platestogether~ Thls type of fastener would be more tamperproof but requlres more positlve operation during an emergency situation.
Figures 6 and 7 illustrate still further modifications of the device. Bracket 70 includes back plate 72 with holes 74 enabling the bracket to be secured by screwsor bolts to an appropriate wall or frame. Bracket 70 has an open front defined by side ~langes 76 which include sufficient b~ttom portions 78 to support plate 80. Plates 80 and 82 are hinged together, plate 80 being adapted to fit within bracket 70 with plate 82 extending outwardly between side flanges 76. Plate 82 1~3[)~87 may be pulled downwardly similar to the embodiment of Figure 1. Seal means 84 comprising an adhesive strip retains plate 82 upright but may be broken by simply pulling down on plate 82. This embodiment permits the plates as a pair to be removed and replaced if it is preferred to change the combined indicia information of the device.
It will be appreciated that any symbol could be used on the surface of plate 82 to indicate the nature of the matter to be checked. For example, the checking device or checker could be mounted adjacent a rack or bin in a warehouse containing parts with the indicia on the plate 82 symbolic of the parts. Plate or tab 82 could be pulled down after inventory taking of such rack or bin to indicate that th~ parts have been checked.
Accordingly, the invention provides a checker device whereby the checked status of a matter may be quickly indicated in a visual manner upon the occurrence of a specified event.
The embodiments described above included indicia on two separate plate means or associated with two separate plate means but it will be appreciated that the "checked" indicia such as indicia 40 could be placed on the back surface of plate 14 rather than the front surface of plate 12. Furthermore, it will be appreciated that in emergency situations in particular, it may be desirable to have a "checked" symbol or indlcia 40 which is substantially larger than the indlcia 32 in whlch case the indlcia 40 may be spread over the back surface of plate 14 and the front surface of plate 12. It is preferred, particularly in emergency situations that the initial indicia 32 for example be removed completely from visual contact in order to avoid any possible confusion or error.
The term "indicia" as used herein and in the claims includes the use of selected colours by themselves and is not limited to written or visually shaped material.
Other variations of the invention will become apparent ~3078~
to those skilled in the art and the invention is accordingly not limited to the preferred embodiment only but includes those modifications and variations within the scope and spirit of the appended claims.
FIELD OF INVENTION
The invention pertains to a device for use in a checking system whereby the status of some matter may be simply and expediently indicated or accounted for. By way of example the invention provides a system whereby restricted or disabled occupants of an institution such as a hospital, can be checked and accounted for in case of an emergency such as in a fire. The invention may also be used by way of example as part of inventory control in manufacturing, warehousing, stores, libraries and the like, to indicate that inventory taking has been completed with respect to a particular item or particular items.
BACKGROUND OF THE INVENTION
With the present increase in the number of fires and ~he heightened awareness for safety both for the occupants and emergency personnel, it has become desirable to provide a system whereby all occupants of homes for the aged and the like, are accounted for in an emergency. The problem is particularly compounded in the instance of homes for the aged, since the residents are senior citizens and may suffer in varying degrees for disabilities due to age and illness. These ailments may include blindness, deafness, being confined to a wheelchair or being bedridden. The restricted residents may thus not be able to evacuate the premises without assistance in case o~ a fire.
Therefore, in the event of an emergency, for the safety of all concerned, it is desirable to provide a system whereby the orderly evacuation of the residents may be confirmed.
The usual procedure, at present, is for emergency personnel, such as the Fire Department personnel, to check each room of the residence ensuring that the residents are evacuated.
Upon confirmation that a room is empty a chalk mark is made on the door of the room indicating that the room has been checked.
The conditions under which the check is made may include the presence of smoke, water or other ha~ards. The chalk marks may ~23~ 37 therefore get erased or rubbed away, and in any event they are not clearly visible in a darkened or smoke filled hallway. The uncertainty created by the foregoing can result in confusion and duplication of effort by the emergency personnel.
During inventory taking, one or more people engage in checking all items in inventory and the checking includes all items of a particular nature whether for example, on the counter, or shelves in a store or on racks in a warehouse. It would be desirable to provide a simple yet expedient visual means of indicating when an item or items have been checked to avoid possible duplication of inventory taking.
Accordingly, it is an object of this invention to provide a device whereby the status of some matter is indicated or accounted for.
SUMMARY OF THE INVENTION
The invention in its broader aspects pertains to a device for indicating a change in the status of a matter to be checked, upon the occurrence of a speclfied event. The device comprises a first plate adapted to be attached proximate a matter to be checked and having an outer surface and a second plate having an inner and outer surface, the outer surface bearing prominantly visible predetermined first indicia. At least one of the first plate outer surface and the second plate inner surface bears predetermined second indicia. Means are ~L23~
provided to permit selective movement of tAe second plate relative to the first plate, so as to expose and make prominantly visible the second indicia and obscure the first indicia.
The invention particularly comprehends in one aspect a device for indicating that an adjoining room has been checked in an emergency situation, the device including a first plate and means by which the plate may be secured proximate to access means to the room and a second plate having inner and outer surfaces, the outer surface of the second plate having prominantly visible predetermined first indieia having reference to contents or objects normally within the room.
At least one of the first plate outer surface and second plate inner surface bearing predetermined second indicia having reference to a checked status. Means hingedly mount the second plate to the first plate so that the second plate is movable from a first position parallel with an-d overlying at least a portion of the first plate whereby the second indicia is obscured from view to a second position substantially planar with the first plate so as to expose and make prominantly visible the seeond indieia while obseuring the first indieia.
Manually releasable means releasably retain the plates in the first operative position.
In one partieular aspeet as ~iselosed, the present invention provides a deviee for indieating that an adjoining room to the eheeker deviee has been eheeked in an emergeney. The deviee is comprised of a first plate whieh has a front surfaee bearing prominently visible predetermined first indieia. The deviee may be fixed to a wall or door frame so as to show that it is representative of the adjoining room. The first indieia may be seleeted as a eheek mark symbol or the like. The deviee further has a seeond plate whieh is movable relative to the ~1 2~07~3~
first plate. The second plate bearing prominently visible second indicia on its outer surface. In the normal mode the second plate obscures the visibility of the first indicia.
However, after a room has been checked, the second plate is movable so as to expose the first indicia. In the normal mode the second indicia may be used to designate the nature of the disabilities of the occupants of a particular room. The device, in addition to having an application in homes for the aged, could also be adapted for use in nursing homes, senior citizen housing, hospitals, institutions for the handicapped, children's camps and prisons. In general the device could be adapted for use wherever residents are not mobile or easily visible.
The device may also be used in situations such as inventory taking where the indicia on the first plate, attached or affixed to a shelf or rack, is indicative of the checked status whereas the indicia on the second plate is indicative of the nature of the item in inventory to be checked.
Other uses will become apparent from the specification as a whole and in particular from the preferred embodiments o~ the invention set forth below ln conjunction with the drawings.
BRIEF DESCRIPTION OF THE D~AWINGS
FIGURE 1 is a perspective view of one embodiment of the device in a closed position.
30t787 FIGURE 2 is a front view of the embodiment of FIGURE 1 in open position.
FIGURES 3a, 3b, 3c, and 3d illustrate other indicia that may be applicable.
FI~URE 4 is a perspective view of a modification of the device.
FIGURE 5 is a side view, partially in section, of the embodiment of FIGURE 4.
FIGURE ~ i5 a perspective view of a further modification of the device.
FIGURE 7 is a perspective view of the plates associated with the embodiment of FIGURE 6.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The embodiment shown in Figures 1 - 3 is designed to be permanently fixed or attached on or adjacent the door of each room in an institution such as a hospital or nursing home providing a quick and clearly visible indication of the checked status of the room. More particularly the device 10 comprises a first plate 12 and a second plate 14 hinged at hinge 22.
Retaining means 24 hold the plates together in their normal position. Fastening screws 20 secure the device to a door or the adjoining wall or door frame associated with a room. Plate 14 carries indlcia 32 on it~ outer 9urface which indicia is indicative of the nature of the occupant~s) in the room.
Designation markings 30 may also be placed on the device to identify the purpose or use of the device.
As further displayed in Figure 2, the device may be opened by unfastening retaining means 24 which may be the type of two part separable materlal fastener (sold under the trade mark VELCRO ~ (24a and 24b). Hinge means 22, pre~erably a strip of flexible plastic, permits the second plate 14 to be folded down. In the open position or folded down ~230'~87 position of the second plate 14, one surface of the plate 12 becomes visible. This surface carries indicia 40 which may be of the form of a check mark.
Normally the device remains closed as shown in Figure 1, displaying the indicia 32. In the event of a fire, emer~ency personnel, for example, would be able to determine at first glance the nature of the disabilities of the occupants in the room. Once evacuation of the occupants from the roorn had been completed the second plate would be pulled down revealing indicia 40 namely, a check mark, indicia 32 no longer being visible. The check mark would indicate to subsequent passing emergency personnel that the door may be left closed, thus minimizing the danger of fire spreading because of open doors.
The siæe of the device is chosen so as to avoid giving a cluttered look, however, it should be large enough to be clearly visible. Additionally when the device is mounted, consideration is given to mounting it on or about eye level.
The device may be constructed of plastic, wood or preferably of fire-resistant material such as aluminum. The plastic or wood may be coated with fire-retardant material. The device may be coloured and marked for "emergency" use only. The colouring chosen for the preferred embodiment is red wlth white lettering - red being the colour associated with Fire Departments and emergency equipment. White lettering contrastlng the red background may be used to further alert people to the fact that t"he device is for emergency use only.
Displaying indicia 32 or like assists emergency personnel in determining the nature of the disability of the individual resident in the room. Other information may be displayed using representations such as those shown in Figures 3a - 3d. The information could be carried by adhesive stickers which could be altered every time the nature of the disabilities of the residents of the room changed. The markings 123(~ 37 on these stickers could be luminous and/or florescent.
Although not shown, an alternative to varying the indicia on plate 14 would be to provide a selective demountable mechanical hinge 22 so that plate 14 with indicia could be detached from plate 12 and a new pla~e 14 with a different indicia mounted for hinged connection with plate 12.
~ modified embodiment to the device is shown in Figures 4 and 5. Plates 12 and 14 are hinged together similar to the embodiment shown in Figures 1 - 3 but plate 14 includes a receptacle or bracket 50 secured to the front surface thereof which bracket holds plastic card 52. Indicia 32 is located on card 52 and card 52 may be selectively removed and replaced by a card carrying a different indicia as circumstances such as a change in the nature of the disability of the occupants of the room dictate. A friction fit between card 52 and the confines of bracket 50 would be all that is necessary to secure card 52 in bracket 50 even when plate 14 is pulled down.
The embodiment of Figures 4 and 5 also show a variation in the fastening means to nominally hold plates 12 and 14 together.
Rotatable screw stud 56 extends through plate 12 and has a wing nut-like outer end 58 whlch in one position passes through a like shaped aperture 60 in plate 14 and may then be rotated 90 to secure the platestogether~ Thls type of fastener would be more tamperproof but requlres more positlve operation during an emergency situation.
Figures 6 and 7 illustrate still further modifications of the device. Bracket 70 includes back plate 72 with holes 74 enabling the bracket to be secured by screwsor bolts to an appropriate wall or frame. Bracket 70 has an open front defined by side ~langes 76 which include sufficient b~ttom portions 78 to support plate 80. Plates 80 and 82 are hinged together, plate 80 being adapted to fit within bracket 70 with plate 82 extending outwardly between side flanges 76. Plate 82 1~3[)~87 may be pulled downwardly similar to the embodiment of Figure 1. Seal means 84 comprising an adhesive strip retains plate 82 upright but may be broken by simply pulling down on plate 82. This embodiment permits the plates as a pair to be removed and replaced if it is preferred to change the combined indicia information of the device.
It will be appreciated that any symbol could be used on the surface of plate 82 to indicate the nature of the matter to be checked. For example, the checking device or checker could be mounted adjacent a rack or bin in a warehouse containing parts with the indicia on the plate 82 symbolic of the parts. Plate or tab 82 could be pulled down after inventory taking of such rack or bin to indicate that th~ parts have been checked.
Accordingly, the invention provides a checker device whereby the checked status of a matter may be quickly indicated in a visual manner upon the occurrence of a specified event.
The embodiments described above included indicia on two separate plate means or associated with two separate plate means but it will be appreciated that the "checked" indicia such as indicia 40 could be placed on the back surface of plate 14 rather than the front surface of plate 12. Furthermore, it will be appreciated that in emergency situations in particular, it may be desirable to have a "checked" symbol or indlcia 40 which is substantially larger than the indlcia 32 in whlch case the indlcia 40 may be spread over the back surface of plate 14 and the front surface of plate 12. It is preferred, particularly in emergency situations that the initial indicia 32 for example be removed completely from visual contact in order to avoid any possible confusion or error.
The term "indicia" as used herein and in the claims includes the use of selected colours by themselves and is not limited to written or visually shaped material.
Other variations of the invention will become apparent ~3078~
to those skilled in the art and the invention is accordingly not limited to the preferred embodiment only but includes those modifications and variations within the scope and spirit of the appended claims.
Claims (10)
1. A device for indicating that an adjoining room has been checked in an emergency situation, said device comprising:
a first plate and means by which said plate may be secured proximate to access means to said room;
a second plate having inner and outer surfaces, the outer surface of said second plate having prominantly visible predetermined first indicia having reference to contents or objects normally within said room;
at least one of said first plate outer surface and second plate inner surface bearing predetermined second indicia having reference to a checked status;
means hingedly mounting said second plate to said first plate so that said second plate is movable from a first position parallel with and overlying at least a portion of the first plate whereby said second indicia is obscured from view to a second position substantially planar with said first plate so as to expose and make prominantly visible said second indicia while obscuring said first indicia; and manually releasable means for releasably retaining said plates in said first operative position.
a first plate and means by which said plate may be secured proximate to access means to said room;
a second plate having inner and outer surfaces, the outer surface of said second plate having prominantly visible predetermined first indicia having reference to contents or objects normally within said room;
at least one of said first plate outer surface and second plate inner surface bearing predetermined second indicia having reference to a checked status;
means hingedly mounting said second plate to said first plate so that said second plate is movable from a first position parallel with and overlying at least a portion of the first plate whereby said second indicia is obscured from view to a second position substantially planar with said first plate so as to expose and make prominantly visible said second indicia while obscuring said first indicia; and manually releasable means for releasably retaining said plates in said first operative position.
2. The device of claim 1 wherein said releasable means comprises a two part material fastener with one part associated with each plate.
3. The device of claim 1 wherein said second plate includes means associated with its outer surface which permits ready interchange of indicia associated therewith and having reference to changes in the contents or objects in the room.
4. The device of claim 1 wherein said releasable means comprises a two part fastener, one part being a selectively rotatable wing nut and the other part being a slotted opening configured like and through which said wing nut is adapted to pass.
5. The device of claim 1 wherein said means for securing said first plate proximate said access means comprises a bracket adapted to support said first plate, said bracket having an open front, said mounting means including hinge means between said plates adjacent respective lower edges whereby said second plate is rotated downwardly from said first position to said second position.
6. The device of claim 5 wherein said manually releasable means comprises a tearable material strip retaining said plates in said first operative position.
7. The device of claims 1, 4 or 5 wherein said indicia are associated with removable self adhesive stickers.
8. The device of claims 1, 4 or 5 wherein said device is manufactured of fire resistant material.
9. The device of claims 1, 4 or 5 wherein said plates and indicia are distinctly coloured.
10. The device of claims 1, 4 or 5 wherein said indicia is luminescent or fluorescent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000428271A CA1230787A (en) | 1983-05-16 | 1983-05-16 | Dual plate manually settable bistable indication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000428271A CA1230787A (en) | 1983-05-16 | 1983-05-16 | Dual plate manually settable bistable indication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1230787A true CA1230787A (en) | 1987-12-29 |
Family
ID=4125257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000428271A Expired CA1230787A (en) | 1983-05-16 | 1983-05-16 | Dual plate manually settable bistable indication device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1230787A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899683A (en) * | 1987-01-28 | 1990-02-13 | Antonino Cuffaro | Occupancy marker |
| EE01616U1 (en) * | 2021-02-05 | 2023-11-15 | Beatsafe Oy | System to ensure the evacuation of the building |
-
1983
- 1983-05-16 CA CA000428271A patent/CA1230787A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899683A (en) * | 1987-01-28 | 1990-02-13 | Antonino Cuffaro | Occupancy marker |
| EE01616U1 (en) * | 2021-02-05 | 2023-11-15 | Beatsafe Oy | System to ensure the evacuation of the building |
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