Child safe freezer
Abstract
This record has no abstract on file.
Term
Term ended
Expired 23 November 1988, 37.8 years ago.
- Priority and filed
- Granted
- Expired
- Today
3 claims: 1 independent, 2 dependent
- 1What we claim as new and desire to secure by the Letters Patent is:1. A refrigerator cabinet comprising a cabinet mem- 30 ber including a storage compartment having a front flange defining an access opening to said compartment and a closure member for closing the access opening;low latching force means for normally holding said closure member in sealing engagement with said 35 cabinet;locking means including a rectangular slot in said flange and a lock mounted on said closure member;said lock including a rotatable element having an end portion adapted to pass through said slot when said element is in its unlocked position and to overlap an edge of said slot upon 90° rotation of said element to a locking position;said element being of a length such that said end portion is spaced rearwardly from said flange when said closure member is in its closed position whereby said closure member can be partially opened when said element is in its locking position;said element including a stop member forwardly from said end portion and rearwardly from said flange when said closure member is closed;said stop member having a camming surface adapted to slide over an adjacent edge of said slot when said door is moved to a partially open position in which said element in said locking position engages said flange;said stop member including a surface adapted to engage said flange when said closure member is in said partially open position and prevent subsequent closing of said closure member so long as said element is in its locking position.
12 paragraphs in 2 sections, as filed
BACKGROUND OF THE INVENTION
Modern refrigerators and freezers are provided with <sub>2g </sub>magnetic low latching force means for normally holding the door or doors in sealing engagement with the cabinet or body portion of the refrigerator or freezer. These low latching force means provide a safeguard against entrapment of a child within the cabinet either during the use <sub>3</sub>θ thereof or when abandoned.
It is also common practice to provide some refrigerated cabinets, particularly freezers, with positive locking means in order to prevent unauthorized access to the contents of the cabinet. Such positive locking means presents no <sub>3</sub>particular problem from a child safety standpoint so long as no one unfamiliar with the possible hazard of a child being locked in the cabinet has access to the key or other means employed to operate the lock. However if children have access to the lock operating means, it is 40 possible that one child may enter the storage compartment and the other playfully shut the door and lock the door thereby preventing the entrapped child from escaping.
SUMMARY OF THE INVENTION .4a
The present invention has at its primary object the provision of a positive locking means for a refrigerated cabinet which is adapted to permit a partial opening of the cabinet door when in its locking position while at the same time preventing access to the contents of the cabinet. <sup>50</sup>
More specifically there is provided a refrigerated cabinet, particularly a freezer, comprising a cabinet member and a closure member, a low latching force means for normally maintaining the closure member in sealing engagement with the cabinet member and manually operated <sup>δδ </sup>means for locking the closure member in a closed position. The locking means is adapted as to permit limited opening of the closure member so as to provide ventilation of the interior of the cabinet while at the same time preventing access to the interior of the cabinet member. <sup>b</sup>
BRIEF DESCRIPTION OF THE DRAWING
In the accompanying drawing:
FIG. 1 illustrates a freezer cabinet incorporating the θ<sup>5 </sup>locking means of the present invention with the door shown in an open position;
FIG. 2 is a partial sectional view taken along line 2—2 of FIG. 1 showing the door in a closed and locked position; 70
FIG. 3 is a view similar to FIG. 2 illustrating the operation of the present invention in permitting ventilation of
3,621,684 or camming surface 15 that will slide over the adjacent edge of the opening 12 as the locked door is opened due to the flexibility of the element 10 and which will then be in a position to engage the adjacent portion of flange 6 and prevent the door from being closed so long as ele- 5 ment 10 is in its locking position.
It is desirable also to provide warning means indicating that the locked door is ajar. A visual warning means may comprise a light turned on by a door operated switch. The light may be the usual bulb provided for il- 10 luminating the interior of the cabinet when the door is open or a special light on the face of the cabinet. Alternatively, a door operated switch means may be used to energize an audible alarm such as a buzzer, chime or the like. Alternatively or in addition to the operation of 15 an audible or visual warning means, the means for controlling the warning means may deenergize the refrigeration system.
The warning control means may also be operated by the locking means so that it functions only when the 20 door is ajar and locked. For example, as shown in FIG. 4, a warning control switch 16 may be mounted on the rear surface of flange 6 in a position to be operated by an arm 17 on the locking element 10 only when that element is in its locking position and the door has been part- <sup>25 </sup>ly opened.
Contents2
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| EP1470308A2 | Cited by | European Patent Office (EPO) | Search report |
| US11493262B2 | Cited by | United States of America | Applicant |
| EP1470308A4 | Cited by | European Patent Office (EPO) | Search report |
| US10612833B2 | Cited by | United States of America | Search report |
| US5062669A | Cited by | United States of America | Search report |
| US5711554A | Cited by | United States of America | Search report |
| US5114194A | Cited by | United States of America | Search report |
| US2008178424A1 | Cited by | United States of America | Pre-grant |
| US3797871A | Cited by | United States of America | Search report |
| US2004189015A1 | Cited by | United States of America | Pre-grant |
| US8556359B1 | Cited by | United States of America | Search report |
| US3972550A | Cited by | United States of America | Search report |
| US7591516B2 | Cited by | United States of America | Applicant |
| US7097213B2 | Cited by | United States of America | Search report |
| US2007182295A1 | Cited by | United States of America | Pre-grant |
| US4717184A | Cited by | United States of America | Search report |
| US2018135908A1 | Cited by | United States of America | Search report |
| US2007132348A1 | Cited by | United States of America | Pre-grant |
| US2018135907A1 | Cited by | United States of America | Search report |
| US4930818A | Cited by | United States of America | Search report |
| US7467834B2 | Cited by | United States of America | Search report |
| US5358293A | Cited by | United States of America | Search report |
| US8985718B2 | Cited by | United States of America | Search report |
| US10584911B2 | Cited by | United States of America | Search report |
| US2014327354A1 | Cited by | United States of America | Pre-grant |
| US2012306219A1 | Cited by | United States of America | Pre-grant |
| US2005127804A1 | Cited by | United States of America | Pre-grant |
4 priority claims, no other members on record
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 986070 | United States of America | A | |
| 986070 | United States of America | A | |
| 9860 | – | – | – |
| US19700009860 | – | – | – |
Numbers
- Publication, DOCDB
- 3621684
- Publication, EPODOC
- US3621684
- Application
- 9860
- Application, DOCDB
- 3621684D
- Application, EPODOC
- USD3621684
Titles
- English
- CHILD SAFE FREEZER
Classification
- CPC, 7
- A63H33/30
- Y10S292/71
- Y10T70/5075
- Y10T70/5164
- Y10T70/5363
- Y10T70/827
- Y10T292/0902
- IPC, 1
- A63H33 30