NZ510024A - Door opening and closing system - Google Patents
Door opening and closing systemInfo
- Publication number
- NZ510024A NZ510024A NZ51002499A NZ51002499A NZ510024A NZ 510024 A NZ510024 A NZ 510024A NZ 51002499 A NZ51002499 A NZ 51002499A NZ 51002499 A NZ51002499 A NZ 51002499A NZ 510024 A NZ510024 A NZ 510024A
- Authority
- NZ
- New Zealand
- Prior art keywords
- door
- magnetic field
- state
- user
- permanent magnet
- Prior art date
Links
Landscapes
- Refrigerator Housings (AREA)
Abstract
A door state changing apparatus assists a user to move a door between a closed state where the door (8, 9) is positioned adjacent a door frame and an open state. The door state changing apparatus includes a permanent magnet (13, 14) provided on the door and having a permanent magnetic field. An electromagnet (11, 12) is located on the door frame adjacent the permanent magnet with the door in a closed state and is energisable to provide a magnetic field which reinforces the permanent magnetic field of the permanent magnet or to provide a magnetic field in opposition to the permanent magnetic field of the permanent magnet. A door position detector detects the open or closed state of the door and a user interface detects the presence of a user attempting to alter that state. A controller (6) receives input from the door position detector and the user interface and energises the electromagnet (11, 12) to provide a reinforcing magnetic field if a user is attempting to move the door (8, 9) from an open state to a closed state and provides an opposing magnetic field to the permanent magnetic field of the permanent magnet if the door is closed and the user interface indicates that a user is attempting to open the door. The disclosure is particularly adapted for use in a domestic refrigerator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ51002499A NZ510024A (en) | 1998-08-19 | 1999-08-16 | Door opening and closing system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ33145698 | 1998-08-19 | ||
NZ51002499A NZ510024A (en) | 1998-08-19 | 1999-08-16 | Door opening and closing system |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ510024A true NZ510024A (en) | 2002-09-27 |
Family
ID=26651951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ51002499A NZ510024A (en) | 1998-08-19 | 1999-08-16 | Door opening and closing system |
Country Status (1)
Country | Link |
---|---|
NZ (1) | NZ510024A (en) |
-
1999
- 1999-08-16 NZ NZ51002499A patent/NZ510024A/en unknown
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PSEA | Patent sealed | ||
RENW | Renewal (renewal fees accepted) | ||
RENW | Renewal (renewal fees accepted) |