GB2170028A - Alarm device for freezer and refrigerator cabinet doors - Google Patents

Alarm device for freezer and refrigerator cabinet doors Download PDF

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Publication number
GB2170028A
GB2170028A GB08601323A GB8601323A GB2170028A GB 2170028 A GB2170028 A GB 2170028A GB 08601323 A GB08601323 A GB 08601323A GB 8601323 A GB8601323 A GB 8601323A GB 2170028 A GB2170028 A GB 2170028A
Authority
GB
United Kingdom
Prior art keywords
alarm
alarm device
freezer
refrigerator
door
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.)
Withdrawn
Application number
GB08601323A
Other versions
GB8601323D0 (en
Inventor
Allen Charles Peter Cox
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB8601323D0 publication Critical patent/GB8601323D0/en
Publication of GB2170028A publication Critical patent/GB2170028A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

An alarm device is contained in a housing that can be attached to the body of a freezer or refrigerator. The alarm will emit a single high pitched note at regular intervals if the door or lid is not completely closed. The alarm may be powered by an internal dry battery or by mains electricity. If required the alarm signal can alternatively be either a continuous buzz and/or a visual display. Means are provided to isolate the alarm for maintenance purposes such as de-frosting. <IMAGE>

Description

SPECIFICATION Alarm device for freezer and refrigerator cabinet doors This invention relates to an alarm device for freezer and refrigerator cabinet doors, Domestic freezer and refrigerator cabinets are, in general, manufactured with either vertically hinged side mounted doors or horizontally hinged top mounted lids, both of these types of cabinets can be accidentally left with the doors slightly open for long periods of time, this situation is often difficult to detect and can result in the interior temperature rising, causing damage to the food contained therein, which can be both costly and a danger to health.
According to the present invention there is provided an alarm device which makes an audible and/or visual indication that the door is not completely closed. The device is contained in a small box with a separate contact plate, both of which are attached to the outside of the freezer or refrigerator, the box being mounted on the cabinet body and the contact plate on the edge of the door or lid or the other way round if more convenient.
A specific embodiment of the invention will be described by way of example with reference to the accompanying drawings in which: Figure 1 illustrates in perspective a vertical freezer or refrigerator with the alarm device mounted in a convenient position, the contact plate is also shown in position on the edge of the door.
Figure 2 shows the alarm device and contact plate at a larger scale.
Figure 3 shows a typical example of the internal parts of the alarm device, the lid being removed.
Referring to the drawings, the box containing the alarm is attached to the cabinet of the freezer of refrigerator, the contact plate is attached to the edge of the door or lid by means of magnets, suction pads, adhesive or any other means (none shown), additionally the device can be built in to the freezer or refrigerator during manufacture.
The alarm device consists of a small box 1 containing a power source, this can be a dry battery 2 as illustrated or alternatively a mains electricity supply. As the contact plate 6 is moved away from the alarm box, when the door is opened, the switch 5 allows current to flow to the alarm generator 4 via the timer 3 which enables the alarm to be adjusted from a single high pitched note emitted periodically to a continuous buzz. Additionally the audible alarm can be replaced or supplimented by a light, giving a visual warning.
1. An alarm device comprising an alarm generator, a power source, a timer and a switch, all of which are contained in a small box which can be attached to the cabinet body and a contact plate which can be attached to the edge of the door or lid of a freezer or refrigerator.
2. An alarm device as claimed in Claim 1 that can be attached to a freezer or refrigerator by means of magnets, suction pads, adhesive or any other means.
3. An alarm device as claimed in Claim 1 wherein a single high pitched note at regular intervals is emitted when the freezer or refrigerator door or lid is not completely closed.
4. An alarm device as claimed in Claim 3 wherein the single alarm note can be varied to a continuous buzz.
5. An alarm device as claimed in Claim 3 wherein the audible alarm can be substituted by or added to a visual warning light.
6. An alarm device as claimed in Claim 3 and Claim 5 wherein the audible and visual alarms can be isolated for maintenance purposes.
7. An alarm device substantially as described wherein with reference to Figures 1-3 of the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Alarm device for freezer and refrigerator cabinet doors This invention relates to an alarm device for freezer and refrigerator cabinet doors, Domestic freezer and refrigerator cabinets are, in general, manufactured with either vertically hinged side mounted doors or horizontally hinged top mounted lids, both of these types of cabinets can be accidentally left with the doors slightly open for long periods of time, this situation is often difficult to detect and can result in the interior temperature rising, causing damage to the food contained therein, which can be both costly and a danger to health. According to the present invention there is provided an alarm device which makes an audible and/or visual indication that the door is not completely closed. The device is contained in a small box with a separate contact plate, both of which are attached to the outside of the freezer or refrigerator, the box being mounted on the cabinet body and the contact plate on the edge of the door or lid or the other way round if more convenient. A specific embodiment of the invention will be described by way of example with reference to the accompanying drawings in which: Figure 1 illustrates in perspective a vertical freezer or refrigerator with the alarm device mounted in a convenient position, the contact plate is also shown in position on the edge of the door. Figure 2 shows the alarm device and contact plate at a larger scale. Figure 3 shows a typical example of the internal parts of the alarm device, the lid being removed. Referring to the drawings, the box containing the alarm is attached to the cabinet of the freezer of refrigerator, the contact plate is attached to the edge of the door or lid by means of magnets, suction pads, adhesive or any other means (none shown), additionally the device can be built in to the freezer or refrigerator during manufacture. The alarm device consists of a small box 1 containing a power source, this can be a dry battery 2 as illustrated or alternatively a mains electricity supply. As the contact plate 6 is moved away from the alarm box, when the door is opened, the switch 5 allows current to flow to the alarm generator 4 via the timer 3 which enables the alarm to be adjusted from a single high pitched note emitted periodically to a continuous buzz. Additionally the audible alarm can be replaced or supplimented by a light, giving a visual warning. CLAIMS
1. An alarm device comprising an alarm generator, a power source, a timer and a switch, all of which are contained in a small box which can be attached to the cabinet body and a contact plate which can be attached to the edge of the door or lid of a freezer or refrigerator.
2. An alarm device as claimed in Claim 1 that can be attached to a freezer or refrigerator by means of magnets, suction pads, adhesive or any other means.
3. An alarm device as claimed in Claim 1 wherein a single high pitched note at regular intervals is emitted when the freezer or refrigerator door or lid is not completely closed.
4. An alarm device as claimed in Claim 3 wherein the single alarm note can be varied to a continuous buzz.
5. An alarm device as claimed in Claim 3 wherein the audible alarm can be substituted by or added to a visual warning light.
6. An alarm device as claimed in Claim 3 and Claim 5 wherein the audible and visual alarms can be isolated for maintenance purposes.
7. An alarm device substantially as described wherein with reference to Figures 1-3 of the accompanying drawings.
GB08601323A 1985-01-22 1986-01-20 Alarm device for freezer and refrigerator cabinet doors Withdrawn GB2170028A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858501506A GB8501506D0 (en) 1985-01-22 1985-01-22 Warning device for freezer cabinet doors

Publications (2)

Publication Number Publication Date
GB8601323D0 GB8601323D0 (en) 1986-02-26
GB2170028A true GB2170028A (en) 1986-07-23

Family

ID=10573184

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858501506A Pending GB8501506D0 (en) 1985-01-22 1985-01-22 Warning device for freezer cabinet doors
GB08601323A Withdrawn GB2170028A (en) 1985-01-22 1986-01-20 Alarm device for freezer and refrigerator cabinet doors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858501506A Pending GB8501506D0 (en) 1985-01-22 1985-01-22 Warning device for freezer cabinet doors

Country Status (1)

Country Link
GB (2) GB8501506D0 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283603A (en) * 1993-10-30 1995-05-10 Malcolm Meeze Fridge/freezer alarm device
GB2341260A (en) * 1998-09-04 2000-03-08 Michael John Copage Refrigerator and freezer door open warning device
GB2355332A (en) * 1999-10-12 2001-04-18 Simon Christopher Darwin Lewis Refrigerator door-open alarm
GB2378797A (en) * 2001-08-14 2003-02-19 Peter Nigel Stubbings Fridge or freezer open door alarm

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797006A (en) * 1972-07-26 1974-03-12 F Reininger Safety alarm system and switch
US4278968A (en) * 1979-11-13 1981-07-14 Arnett Coleman C Door status detector apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797006A (en) * 1972-07-26 1974-03-12 F Reininger Safety alarm system and switch
US4278968A (en) * 1979-11-13 1981-07-14 Arnett Coleman C Door status detector apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283603A (en) * 1993-10-30 1995-05-10 Malcolm Meeze Fridge/freezer alarm device
GB2341260A (en) * 1998-09-04 2000-03-08 Michael John Copage Refrigerator and freezer door open warning device
GB2355332A (en) * 1999-10-12 2001-04-18 Simon Christopher Darwin Lewis Refrigerator door-open alarm
GB2378797A (en) * 2001-08-14 2003-02-19 Peter Nigel Stubbings Fridge or freezer open door alarm

Also Published As

Publication number Publication date
GB8601323D0 (en) 1986-02-26
GB8501506D0 (en) 1985-02-20

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)