Patent US4833454A successfully refreshed from Google Patents.
US4833454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door chime
Assignee: Jay Advertising Inc
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Filing: 1988-01-22
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Granted: 1989-05-23
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Expires: 2008-01-22
Abstract
Abstract An audio signal device for a door mounted advertising display, the device includes a signal unit, a battery connected to said signal unit, the unit including a tone generator, a pulse generator connected to control the tone generator, a timer connected to control the time of operation of the pulse generator, and a motion switch connected to energize the timer in response to the motion of the door, the timer further including a circuit for preventing reactivation of the timer for a predetermined period of time.
Inventors
- 👤 James P. Pawlik
- 👤 Margaret A. Erdell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:58
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
138 words
A self-contained door mounted signal device comprising a housing having an enclosed chamber and an advertising panel on the front and back of said housing, a printed circuit board mounted in said chamber, said board including, means for sensing the motion of the door for generating a signal, timing means responsive to the signal from said sensing means for establishing a time delay before responding to a second signal from said sensing means, generating means responsive to the signal from said sensing means for generating a pulse. emitting means responsive to the pulse from said generating means for emmiting a tone signal, circuit means for interconnecting said sensing means, said timing means, said pulsing means and said tone emitting means, and a battery mounted in said chamber and operatively connected to said circuit means for energizing said circuit.
Claim 2
Dependent Claim
138 words
A self-contained door mounted signal device comprising a housing having an enclosed chamber and an advertising panel on the front and back of said housing, a printed circuit board mounted in said chamber, said board including, means for sensing the motion of the door for generating a signal, timing means responsive to the signal from said sensing means for establishing a time delay before responding to a second signal from said sensing means, generating means responsive to the signal from said sensing means for generating a pulse. emitting means responsive to the pulse from said generating means for emmiting a tone signal, circuit means for interconnecting said sensing means, said timing means, said pulsing means and said tone emitting means, and a battery mounted in said chamber and operatively connected to said circuit means for energizing said circuit.
Claim 3
Dependent Claim
20 words
The signal device according to claim 1 wherein said timing means and said generating means comprises a dual monostable multivibrator.
Claim 4
Dependent Claim
17 words
The signal device according to claim 1 or 2 wherein said sensing means comprises a mercury switch.
Claim 5
Dependent Claim
17 words
The signal device according to claim 1 or 2 wherein said generating means comprises a pulse timer.
Claim 6
Dependent Claim
19 words
The signal device according to claim 1 or 2 wherein said tone emitting means comprises a piezoelectric audio indicator.
Claim 7
Dependent Claim
14 words
The device according to claim 3 wherein said generating means comprises a pulse timer.
Claim 8
Dependent Claim
17 words
The device according to claim 3 wherein said tone emitting means comprises a piezo electric audio indicator.
Claim 9
Dependent Claim
42 words
The signal device according to claim 7 wherein said timing means comprises a dual mono stable multivilerator, said sensing means comprises a mercury switch, and said generating means comprises a pulse timer and said emitting means comprises a piezo electric audio indicator.
Claim 10
Dependent Claim
123 words
An audio signal device for a door mounted advertising display, said display comprising: a housing, means for securing said housing to a door, a chamber in said housing, and said device comprising a battery operated audio signal unit positioned in said chamber, said unit including a motion switch responsive to movement of the door to activate said unit, timing means connected to respond to movements of said motion switch to activate said unit for a preset time period before responding to further motion of the door, a pulse generator connected to respond to said timing means to generate a preset number of pulses, and a tone generator responsive to said pulse generator pulses to provide an audio signal in response to each pulse.
Claim 11
Dependent Claim
123 words
An audio signal device for a door mounted advertising display, said display comprising: a housing, means for securing said housing to a door, a chamber in said housing, and said device comprising a battery operated audio signal unit positioned in said chamber, said unit including a motion switch responsive to movement of the door to activate said unit, timing means connected to respond to movements of said motion switch to activate said unit for a preset time period before responding to further motion of the door, a pulse generator connected to respond to said timing means to generate a preset number of pulses, and a tone generator responsive to said pulse generator pulses to provide an audio signal in response to each pulse.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |