US5374025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic vibration cancellation actuator and method
Assignee: Honeywell International Inc
•
Filing: 1993-06-28
•
Granted: 1994-12-20
•
Expires: 2013-06-28
Abstract
Abstract A vibration cancellation system having a fluidic driver providing fluid pressure differential and flow to an actuator having a reaction mass. The pressure differential drives the reaction mass so that the actuator's oscillations cancel any vibrations emanating from a vibrating structure mounted thereto.
Inventors
- 👤 Gordon E. Whelpley
- 👤 John F. Thurston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:48
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/023; F16F15/027; F16F7/00; F16F7/10; F16F7/1005; F16F7/1017; F16F9/00; F16F9/32; F16F9/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
89 words
A vibration cancellation mount for use in a vibration cancellation system that includes a controller generating an electrical vibration cancellation signal and a fluid supply, comprising; a transducer electrically coupled to said controller for converting said electrical cancellation signal into a differential cancellation signal, a fluidic driver, in fluid communication with said fluid supply and said transducer, for converting said differential cancellation signal into at least two flows of fluid at different pressures; and an actuator receiving said two flows and actuating in response to said difference in pressure.
Claim 2
Dependent Claim
89 words
A vibration cancellation mount for use in a vibration cancellation system that includes a controller generating an electrical vibration cancellation signal and a fluid supply, comprising; a transducer electrically coupled to said controller for converting said electrical cancellation signal into a differential cancellation signal, a fluidic driver, in fluid communication with said fluid supply and said transducer, for converting said differential cancellation signal into at least two flows of fluid at different pressures; and an actuator receiving said two flows and actuating in response to said difference in pressure.
Claim 3
Dependent Claim
16 words
The vibration cancellation mount of claim 1 further including an elastomeric isolator mounted to said actuator.
Claim 4
Dependent Claim
25 words
The vibration cancellation mount of claim 2 wherein said actuator has a reaction mass mounted thereto for oscillating in response to said difference in pressure.
Claim 5
Dependent Claim
14 words
The vibration cancellation mount of claim 3 wherein said transducer is a piezoelectric transducer.
Claim 6
Dependent Claim
14 words
The vibration cancellation mount of claim 3 wherein said transducer is an electromagnetic transducer.
Claim 7
Dependent Claim
30 words
The vibration cancellation mount of claim 1 wherein said fluidic driver includes a plurality of fluidic laminae configured and arranged as a plurality of fluidic proportional amplifier stages in series.
Claim 8
Dependent Claim
20 words
The vibration cancellation mount of claim 6 wherein said fluidic laminae has a means for receiving said differential cancellation signal.
Claim 9
Dependent Claim
109 words
A vibration cancellation system for isolating a first structure from a vibrating, second structure, comprising; a fluid supply; at least one vibration sensor mounted on said vibrating structure; a controller, electrically coupled to said sensor, for generating a vibration cancellation signal; and a vibration cancellation mount positioned between said first structure and said vibrating structure, said mount comprising a transducer electrically coupled to said controller for converting said cancellation signal into a differential signal, a fluidic driver in fluid communication with said fluid supply and said transducer, for varying the flow rate of fluid synchronously with said differential signal, and an actuator receiving said fluid and reacting synchronously therewith.
Claim 10
Dependent Claim
109 words
A vibration cancellation system for isolating a first structure from a vibrating, second structure, comprising; a fluid supply; at least one vibration sensor mounted on said vibrating structure; a controller, electrically coupled to said sensor, for generating a vibration cancellation signal; and a vibration cancellation mount positioned between said first structure and said vibrating structure, said mount comprising a transducer electrically coupled to said controller for converting said cancellation signal into a differential signal, a fluidic driver in fluid communication with said fluid supply and said transducer, for varying the flow rate of fluid synchronously with said differential signal, and an actuator receiving said fluid and reacting synchronously therewith.
Claim 11
Independent Claim
86 words
A method for isolating a first structure supporting a vibrating, second structure comprising the steps of; measuring the amplitude and frequency of the vibration emanating from said first and second structures; generating, from the measurements in the preceding step, an electrical, cancelling signal; converting said electrical signal into a differential signal; fluidically amplifying said differential signal; and driving an actuator, disposed between said first and second structures, synchronously in response to said amplified differential signal so that said actuator vibrates synchronously with said electrical, cancelling signal.
Claim 12
Independent Claim
86 words
A method for isolating a first structure supporting a vibrating, second structure comprising the steps of; measuring the amplitude and frequency of the vibration emanating from said first and second structures; generating, from the measurements in the preceding step, an electrical, cancelling signal; converting said electrical signal into a differential signal; fluidically amplifying said differential signal; and driving an actuator, disposed between said first and second structures, synchronously in response to said amplified differential signal so that said actuator vibrates synchronously with said electrical, cancelling signal.
References Cited (Backward Citations)
US2964272A
Cited
US3216679A
Cited
US3701499A
Cited
US3606233A
Cited
US4033541A
Cited
US4336917A
Cited
US4363377A
Cited
US4483425A
Cited
US4546960A
Cited
US4757980A
Cited
US4930357A
Cited
US4802648A
Cited
US4795123A
Cited
US4828234A
Cited
US4874016A
Cited
US5052529A
Cited
US5255764A
Cited
US4950966A
Cited
US5101929A
Cited
US5049795A
Cited
US5127622A
Cited
US5285995A
Cited
US5251863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-19 | 1998-06-20 | 1998-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-19 | 2002-06-20 | 2002-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-19 | 2006-06-20 | 2006-12-20 | $7700.00 | Window Closed / Lapsed |