Patent US3766016A successfully refreshed from Google Patents.
US3552271A
Expired / Lapsed
US
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Vibration damping device
Assignee: Individual
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Filing: 1968-11-12
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Granted: 1971-01-05
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Expires: 1988-11-12
Abstract
Abstract In abstract, a preferred embodiment of this invention is a vibration attenuator which effectively isolates a load from a vibrating platform through an active load suspension system. This attenuator is particularly adaptable to the seats and cabs of offroad vehicles.
Inventors
- 👤 Charles W Suggs
- 👤 Larry F Stikeleather
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:58
CPC Classifications
F; F15; F15B; F15B21/00; F16; F16F; F16F15/00; F16F15/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
129 words
A vibration attenuating device between a vibrating platform and a load supported by such platform comprising: a vibration sensing means having an output signal proportional to vibrations; means operatively connected to said sensing means for correcting any error in said output signal; a relative position sensing means operatively connected between said platform and said load having an output signal directly proportional to the displacement therebetween; a signal summarizing means operatively connected to said signal correcting means and said relative position sensing means whereby an error corrected signal may be obtained; a motor actively supporting said load on said platform; and a signal responsive control means for said motor means operatively connected to said summarizing means whereby the load can be moved in antiphase to the vibration of said platform.
Claim 2
Dependent Claim
129 words
A vibration attenuating device between a vibrating platform and a load supported by such platform comprising: a vibration sensing means having an output signal proportional to vibrations; means operatively connected to said sensing means for correcting any error in said output signal; a relative position sensing means operatively connected between said platform and said load having an output signal directly proportional to the displacement therebetween; a signal summarizing means operatively connected to said signal correcting means and said relative position sensing means whereby an error corrected signal may be obtained; a motor actively supporting said load on said platform; and a signal responsive control means for said motor means operatively connected to said summarizing means whereby the load can be moved in antiphase to the vibration of said platform.
Claim 3
Dependent Claim
13 words
The device of claim 1 wherein the vibration sensing means is a vibrometer.
Claim 4
Dependent Claim
13 words
The device of claim 2 wherein the vibrometer is a spring counterbalanced weight.
Claim 5
Dependent Claim
20 words
The device of claim 3 wherein the vibrometer output signal is produced by a potentiometer operatively connected to said weigHt.
Claim 6
Dependent Claim
24 words
The device of claim 1 wherein a motor response lag anticipating means is operatively connected between said signal summarizing means and said control means.
Claim 7
Dependent Claim
12 words
The device of claim 1 wherein the motor means is hydraulically motivated.
Claim 8
Dependent Claim
15 words
The device of claim 6 wherein the hydraulic motor means is a double-acting hydraulic cylinder.
Claim 9
Dependent Claim
13 words
The device of claim 7 wherein the control means is an electrohydraulic servovalve.
Claim 10
Independent Claim
151 words
A device for isolating the motion of a first body from a second body connected thereto comprising: a motion sensing means operatively associated with said first body and having an output signal proportional to said motion; a relative position sensing means operatively connected between said first and said second bodies having an output signal generally directly proportional to the displacement therebetween; error compensating means operatively connected to said motion sensing means for correcting errors in said output signal; a signal summarizing means operatively connected to said error compensating means and said position sensing means whereby an error corrected signal may be obtained; motor means forming at least a part of the connection between said first body and said second body; and signal responsive control means for said motor means operatively connected to said summarizing means whereby said second body can be moved in antiphase to the motion of said first body.
Claim 11
Independent Claim
151 words
A device for isolating the motion of a first body from a second body connected thereto comprising: a motion sensing means operatively associated with said first body and having an output signal proportional to said motion; a relative position sensing means operatively connected between said first and said second bodies having an output signal generally directly proportional to the displacement therebetween; error compensating means operatively connected to said motion sensing means for correcting errors in said output signal; a signal summarizing means operatively connected to said error compensating means and said position sensing means whereby an error corrected signal may be obtained; motor means forming at least a part of the connection between said first body and said second body; and signal responsive control means for said motor means operatively connected to said summarizing means whereby said second body can be moved in antiphase to the motion of said first body.
Claim 12
Dependent Claim
14 words
The device of claim 9 wherein the relative position sensing means is a potentiometer.
Claim 13
Independent Claim
114 words
A device for isolating the motion of a first body from a second body connected thereto comprising: a motion sensing means operatively associated with said first body and having an output signal proportional to said motion; signal error compensating means operatively connected to said motion sensing means for correcting errors in said output signal; motor means forming at least a part of the connection between said first body and said second body; signal responsive control means for said motor means operatively connected to said error correcting means; and a motor responsive lag anticipating means operatively connected between said signal error compensating means and said motor control means whereby a better antiphase response is obtained.
Claim 14
Independent Claim
114 words
A device for isolating the motion of a first body from a second body connected thereto comprising: a motion sensing means operatively associated with said first body and having an output signal proportional to said motion; signal error compensating means operatively connected to said motion sensing means for correcting errors in said output signal; motor means forming at least a part of the connection between said first body and said second body; signal responsive control means for said motor means operatively connected to said error correcting means; and a motor responsive lag anticipating means operatively connected between said signal error compensating means and said motor control means whereby a better antiphase response is obtained.
Claim 15
Independent Claim
123 words
A device for isolating the motion of a first body from a second body connected thereto comprising: a motion sensing means in the form of a spring counterbalanced, weight-type, vibrometer unit using a potentiometer to produce a motion responsive signal operatively associated with said first body and having an output signal proportional to said motion; signal error compensating means operatively connected to said motion sensing means for correcting errors in said output signal; motor means forming at least a part of the connection between said first body and said second body; and signal responsive control means for said motor means operatively connected to said error correcting means whereby said second body can be moved in antiphase with the motion of said first body.
Claim 16
Independent Claim
123 words
A device for isolating the motion of a first body from a second body connected thereto comprising: a motion sensing means in the form of a spring counterbalanced, weight-type, vibrometer unit using a potentiometer to produce a motion responsive signal operatively associated with said first body and having an output signal proportional to said motion; signal error compensating means operatively connected to said motion sensing means for correcting errors in said output signal; motor means forming at least a part of the connection between said first body and said second body; and signal responsive control means for said motor means operatively connected to said error correcting means whereby said second body can be moved in antiphase with the motion of said first body.
Claim 17
Dependent Claim
119 words
A vibration attenuating device between a vibrating platform and a load supported by such platform comprising: a vibration sensing means having an output signal proportional to vibrations; a relative position sensing means operatively connected between said platform and said load having an output signal directly proportional to the displacement therebetween; a motor actively supporting said load on said platform; a signal responsive control means for said motor means operatively connected to said sensing means; and a signal summarizing means operatively connected between and to said vibration sensing means and said control means and to said relative position sensing means whereby an error correcting signal may be obtained to move the load in antiphase to the vibrations of said platform.
Claim 18
Dependent Claim
119 words
A vibration attenuating device between a vibrating platform and a load supported by such platform comprising: a vibration sensing means having an output signal proportional to vibrations; a relative position sensing means operatively connected between said platform and said load having an output signal directly proportional to the displacement therebetween; a motor actively supporting said load on said platform; a signal responsive control means for said motor means operatively connected to said sensing means; and a signal summarizing means operatively connected between and to said vibration sensing means and said control means and to said relative position sensing means whereby an error correcting signal may be obtained to move the load in antiphase to the vibrations of said platform.
References Cited (Backward Citations)
US2969773A
Cited
US3028175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |