Alarm and intermittent alert system for vehicle operation
First Claim
Patent Images
1. An alert and alarm clock capable of functioning as an alarm clock and an intermittent alert device comprising:
- a switch operable to place the clock in two different modes of operation;
a digital display alarm clock that generates an alarm signal at preselected times during the two different modes of operation, the preselected times of the alarm signal providing capability for the alert and alarm clock to function in one mode of operation as an alarm clock generating the alarm signal at a preselected set time after a wait period, and in a second mode of operation as an intermittent alert device continuously generating the alarm signal only at predefined intervals free of a preselected set time and wait period to provide constant alert function;
a high output buzzer electrically connected to said alarm clock and activated by the alarm signal; and
an isolation circuit connected between the alarm clock and the buzzer for preventing feedback to the alarm clock, the isolation circuit receiving the alarm signal from the alarm clock and activating the buzzer in response.
0 Assignments
0 Petitions
Accused Products
Abstract
A standard digital display alarm clock is provided which is driven by a 1.5 volt DC power source. A two-tone alarm device, whose sound level is adjustable from 60 dB to 100 dB, is electrically wired to the clock and sounds when the clock attains a predetermined time. The power for the alarm device is supplied by either a 9 volt DC source contained within the clock or a 12 volt DC automotive cigarette lighter. The clock is provided with an intermittent alert feature which will cause the alarm to sound every four minutes for an indefinite amount of time and requires operator input to deactivate.
24 Citations
13 Claims
-
1. An alert and alarm clock capable of functioning as an alarm clock and an intermittent alert device comprising:
-
a switch operable to place the clock in two different modes of operation; a digital display alarm clock that generates an alarm signal at preselected times during the two different modes of operation, the preselected times of the alarm signal providing capability for the alert and alarm clock to function in one mode of operation as an alarm clock generating the alarm signal at a preselected set time after a wait period, and in a second mode of operation as an intermittent alert device continuously generating the alarm signal only at predefined intervals free of a preselected set time and wait period to provide constant alert function; a high output buzzer electrically connected to said alarm clock and activated by the alarm signal; and an isolation circuit connected between the alarm clock and the buzzer for preventing feedback to the alarm clock, the isolation circuit receiving the alarm signal from the alarm clock and activating the buzzer in response. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An alert and alarm clock comprising:
-
a digital display alarm clock that generates an alarm signal at preselected times, the digital display alarm clock operable at a first voltage, the preselected times of the alarm signal providing capability for the alert and alarm clock to function in at least two operating modes, a first operating mode operable as an alarm clock generating the alarm signal at a preselected time, and a second operating mode operable as an intermittent alert device generating the alarm signal periodically at predefined intervals without a preselected time to provide a constant alert function; a switch in operable association with the digital display alarm clock having a position for each operating mode; a high output alarm electrically connected to said alarm clock and activated by the alarm signal, the high output alarm operable at a second voltage higher than the first voltage of the digital display alarm clock; and an isolation circuit connected between the alarm clock and the alarm for preventing feedback to the alarm clock, the isolation circuit receiving the alarm signal from the alarm clock and activating the alarm in response, the isolation circuit comprising a pair of switching transistors, a first switching transistor receiving the alarm signal and thereby activating a second switching transistor to provide a power source to the alarm. - View Dependent Claims (9, 10, 11, 12, 13)
-
Specification