E - Fixed Constructions – 05 – C
Patent
E - Fixed Constructions
05
C
E05C 19/00 (2006.01) A47B 96/00 (2006.01) E05B 65/00 (2006.01) E06B 7/00 (2006.01)
Patent
CA 2417948
A cupboard door, for example in a household kitchen, swings open freely when pulled by a child or when agitated by an earthquake tremour. A childproof cupboard latch can be purchased and retroactively installed on such a cupboard to withstand the undesirable opening of the door. The mechanism of a childproof latch and its working is illustrated on Drawings 1a, 1b and 1c. The latch consists of a hooked catch arm mounted on the lower inner edge of the cupboard door and a catch device mounted on the bottom shelf of the cupboard. The catch arm and the catch are positioned to "latch" the door so that the former "engages" the latter when the cupboard door is closed. Furthermore, the design of the device is such that the catch device latches the door but allows an opening enough for insertion of a person's finger. The door, then, will open when the catch arm is released by lifting the catch arm with a finger in the opening. The invention by your Petitioner, described on Drawings 2a, 2b and 2c, will modify the unlatching method just described. The invention eliminates the finger opening described above and the insertion of a finger to unlatch the latching device. The invention consists of attaching an elementary release device onto an otherwise orthodox childproof cupboard latch. By this invention, the tentative opening of the cupboard door required for the insertion of a person's finger, will be
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