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US 4,380,759 AGranted
Apparatus to alert a deaf person
OwnerJerome Sulkoski, Richard D. Bruggerinventors
Life of this patent
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Abstract
An apparatus to alert a deaf person made up of an alarm device such as a smoke detector adapted to vibrate when actuated by smoke and a transmitter having a vibration sensor connected to the transmitter. The vibration sensor is supported in engagement with the smoke detector and adapted to sense the vibrations of the smoke detector and to transmit a signal to a remotely located receiver. The receiver has a vibrating reed with a tacticle member on its end for engaging a person to alert him when the receiver causes the reed to be vibrated.
Claims7
Apparatus to alert a deaf person of an emergency situation comprising:
- a vibration sensor for sensing an audible alarm,
- a radio receiver,
- a radio transmitter having a vibration pickup adapted to sense the vibration of a smoke alarm,
- said radio receiver having means to receive transmissions from said transmitter,
- a tactile stimulator connected to said receiver,
- said tactile stimulator being adapted to be disposed in engagement with the skin of a person whereby said person is alerted by a transmission from said transmitter to said receiver and to said tactile stimulator when said smoke alarm is operating,
- said tactile stimulator being a piezoelectric reed connected to a skin engaging member terminating in an end that is substantially a conical member having a point adapted to vibrate at a frequency in the range of 160 HZ,
- said piezoelectric reed comprises a conductor member sandwiched between two relatively thin non-conductor members supported in fixed position at a first end and having said point member supported on its distal end, and adapted to vibrate in contact with said skin in response to a signal received by said receiver from said transmitter.
5 more elements
Dependencies are inferred from the claim text.