US3921014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bounce drive system
Assignee: United States Department of the Navy
•
Filing: 1973-10-23
•
Granted: 1975-11-18
•
Expires: 1993-10-23
Abstract
Abstract A system providing an electrical pulse to mechanically drive a first piezoelectric element upon receipt of an electrical signal from a mechanically driven second piezoelectric element. The system is adapted to provide a preselected frequency of from 16 to 115 impulses per second. The electrical signal from the second piezoelectric element is processed through a voltage comparator by comparison with a reference voltage and applied to a pulse stretcher circuit. The pulse stretcher circuit controls the gate of a silicon controlled rectifier which provides a signal from a power supply to an autotransformer that boosts the voltage from the power supply and applies the voltage to the second piezoelectric element. The pulse stretcher provides the additional function of preventing oscillation in the circuit.
Inventors
- 👤 Theodore D Jayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:25
CPC Classifications
G; G01; G01P; G01P7/00; G01P15/00; G01P15/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
307 words
A high speed driver comprising: a first transducer for converting a mechanical impulse to an electrical signal; a comparator circuit connected to said first transducer for providing a first output signal upon said electrical signal exceeding a predetermined magnitude; a pulse stretcher circuit connected to said comparator circuit for providing a second output signal for a predetermined period of time upon receipt of said first output signal; a silicon controlled rectifier circuit connected to said pulse stretcher circuit for providing a third output signal upon receipt of said second output signal; a bounce rate controller circuit connected to said silIcon controlled rectifier circuit for determining the magnitude and duration of said third output signal; a manual controller connected to said silicon controlled rectifier circuit for providing an enabling signal to said silicon controlled rectifier circuit to enable said rectifier circuit to provide said third output signal; a second transducer adapted to receive said third output signal for converting said third output signal to a mechanical impulse; a high voltage circuit connected between said silicon controlled rectifier circuit and said second transducer for increasing the voltage of said third output signal; said first and second transducers comprised of piezoelectric material; said comparator circuit including a voltage comparator for comparing said electrical signal with a reference signal and providing a positive output signal upon the voltage of said electrical signal exceeding said reference signal and a voltage divider circuit connected to said voltage comparator for providing said first output signal upon receipt of said positive output signal; and said pulse stretcher circuit including a voltage source and a silicon controlled switch connected to said voltage source and said voltage divider circuit for providing a conduction path for said voltage source to form said second output signal for a predetermined period of time upon receipt of said first output signal.
Claim 2
Dependent Claim
307 words
A high speed driver comprising: a first transducer for converting a mechanical impulse to an electrical signal; a comparator circuit connected to said first transducer for providing a first output signal upon said electrical signal exceeding a predetermined magnitude; a pulse stretcher circuit connected to said comparator circuit for providing a second output signal for a predetermined period of time upon receipt of said first output signal; a silicon controlled rectifier circuit connected to said pulse stretcher circuit for providing a third output signal upon receipt of said second output signal; a bounce rate controller circuit connected to said silIcon controlled rectifier circuit for determining the magnitude and duration of said third output signal; a manual controller connected to said silicon controlled rectifier circuit for providing an enabling signal to said silicon controlled rectifier circuit to enable said rectifier circuit to provide said third output signal; a second transducer adapted to receive said third output signal for converting said third output signal to a mechanical impulse; a high voltage circuit connected between said silicon controlled rectifier circuit and said second transducer for increasing the voltage of said third output signal; said first and second transducers comprised of piezoelectric material; said comparator circuit including a voltage comparator for comparing said electrical signal with a reference signal and providing a positive output signal upon the voltage of said electrical signal exceeding said reference signal and a voltage divider circuit connected to said voltage comparator for providing said first output signal upon receipt of said positive output signal; and said pulse stretcher circuit including a voltage source and a silicon controlled switch connected to said voltage source and said voltage divider circuit for providing a conduction path for said voltage source to form said second output signal for a predetermined period of time upon receipt of said first output signal.
Claim 3
Dependent Claim
64 words
A high speed driver according to claim 1 wherein said bounce rate controller circuit further comprises: an a.c. voltage source; rectifier means connected to said a.c. voltage source for supplying a pulsating d.c. voltage; and a capacitor connected to said rectifier means for receiving said d.c. pulsating voltage and connected to said silicon controlled rectifier circuit for supplying said third output signal on demand.
Claim 4
Dependent Claim
26 words
A high speed driver according to claim 2 wherein said high voltage circuit further comprises an autotransformer for increasing the voltage of said third output signal.
Claim 5
Dependent Claim
81 words
A high speed driver according to claim 3 further comprising: a bounce cell having an upper and lower pedestal with said lower pedestal connected in juxtaposition to said first transducer and said second transducer connected in juxtaposition to said first transducer so that mechanical impulses received by said lower pedestal can be converted to electrical signals by said first transducer and electrical signal received by said second transducer can be converted into mechanical impulses that are received by said lower pedestal.
References Cited (Backward Citations)
US3045476A
Cited
US3331239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |