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US 2017/0051530 A1Published application
A Self-Contained Deadbolt Sensing Arrangement
AssigneeThomson Licensing
InventorsGerald A. COLMAN, Girish NAGANATHAN, Sin Hui CHEAH
Life of this patent
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Abstract
A sensor, a wireless transceiver and a battery that energizes the transceiver are installed together in a cavity formed in a frame of a door. They are displaced together in the cavity in accordance with the deadbolt position in a direction of displacement of a door deadbolt. A spring that is installed in the cavity accommodates differences among travel distances and differences in lengths of different deadbolts and also differences in gaps between doors and door frames.
Claims10
A deadbolt sensor assembly, comprising:
- a sensor capable to be disposed in a cavity formed in a frame of a door for sensing a deadbolt position to generate an output signal that is indicative when said deadbolt position is in said cavity in a lock position and when said deadbolt position is outside said cavity in an unlock position;
- a wireless transmitter responsive to said sensor output signal and capable of being disposed in said cavity for transmitting a first wireless signal containing information derived from said output signal;
- and
- a battery for energizing said wireless transmitter and said sensor, wherein said battery, said transmitter and said sensor are mechanically coupled together and are capable of being displaced together in said cavity in accordance with said deadbolt position.
1 more element
(canceled)
Dependencies are inferred from the claim text.