US3941402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic shock absorber
Assignee: Individual
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Filing: 1975-03-03
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Granted: 1976-03-02
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Expires: 1995-03-03
Abstract
Abstract The present invention discloses an electromagnetic shock absorber which may be employed to prevent the bottoming of springs in autos during shock conditions, or to replace, in its entirety, a shock absorber. The present shock absorber includes two electro-magnets, the first having a fixed north-to-south field and the second having a field whose polarity is reversible dependant upon the direction of the shock which is to be absorbed or dampened. Where the undesirable shock involves a movement of the car axle toward the auto frame, the polarity of the magnet having a reversible field causes a repulsion between the two electro-magnets. Where the undesirable motion of the car axle is away from the auto frame, the field of the reversible magnet creates an attraction between the two electro-magnets. Hence, any undesirable motion of the auto axle relative to the auto frame is counteracted by virtue of the present system.
Inventors
- 👤 Anthony P. Yankowski
- 👤 Arnold Klausner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:16
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/015; B60G17/0152; B60G17/0157; F; F16; F16F; F16F6/00; B60G2202/00; B60G2202/20; B60G2600/00; B60G2600/22; B60G2600/26; Y; Y10; Y10S; Y10S254/00; Y10S254/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
276 words
An electromagnetic shock absorbing system, intended to maintain the sprung and unsprung elements of a mechanical system at a fixed distance from each other, comprising: a. a linear velocity transducer medially coupled between said sprung and unsprung elements, said transducer serving to convey A current flow proportional in magnitude to the velocity of relative motion between said sprung and unsprung elements and, further, having a direction of flow which is a function of the direction of relative movement between said sprung and unsprung elements; b. a first electromagnet having a polarity which, regardless of the direction of its input current from said transducer, is arbitrarily maintained in a single direction, said first electromagnet being longitudinally disposed between said sprung and unsprung elements; and c. a second electromagnet, electrically coupled to the output of said transducer, having a polarity which is directly proportional to the direction of relative movement between said sprung and unsprung elements, said second electromagnet longitudinally disposed between said elements and, further, disposed upon the same longitudinal axis as said first electromagnet, whereby said second electromagnet will, under conditions in which said sprung and unsprung elements are moving apart, experience a direction of current flow about it which will produce an electromagnetic field which will attract the adjacent poles of said first and second electromagnets to each other, and, conversely, under conditions in which said sprung and unsprung elements are moving toward each other will produce an electromagnetic field in which adjacent poles of said first and second electromagnets will repulse each other, thus creating a desired damping and shock absorbing effect within any suspension system into which the present system may be incorporated.
Claim 2
Dependent Claim
276 words
An electromagnetic shock absorbing system, intended to maintain the sprung and unsprung elements of a mechanical system at a fixed distance from each other, comprising: a. a linear velocity transducer medially coupled between said sprung and unsprung elements, said transducer serving to convey A current flow proportional in magnitude to the velocity of relative motion between said sprung and unsprung elements and, further, having a direction of flow which is a function of the direction of relative movement between said sprung and unsprung elements; b. a first electromagnet having a polarity which, regardless of the direction of its input current from said transducer, is arbitrarily maintained in a single direction, said first electromagnet being longitudinally disposed between said sprung and unsprung elements; and c. a second electromagnet, electrically coupled to the output of said transducer, having a polarity which is directly proportional to the direction of relative movement between said sprung and unsprung elements, said second electromagnet longitudinally disposed between said elements and, further, disposed upon the same longitudinal axis as said first electromagnet, whereby said second electromagnet will, under conditions in which said sprung and unsprung elements are moving apart, experience a direction of current flow about it which will produce an electromagnetic field which will attract the adjacent poles of said first and second electromagnets to each other, and, conversely, under conditions in which said sprung and unsprung elements are moving toward each other will produce an electromagnetic field in which adjacent poles of said first and second electromagnets will repulse each other, thus creating a desired damping and shock absorbing effect within any suspension system into which the present system may be incorporated.
Claim 3
Dependent Claim
32 words
The system as recited in claim 1 in which said sprung element comprises the frame of an automotive vehicle and said unsprung element comprises an axle or wheel of an automotive vehicle.
Claim 4
Dependent Claim
27 words
The system as recited in claim 1 in which said system further includes a mechanical shock absorbing sub-system within which said first and second electromagnets are encased.
Claim 5
Dependent Claim
51 words
The system as recited in claim 1 in which said system further includes a polarity sensitive circuit and a phase inverter interposed between said first electromagnet and said linear velocity transducer, said polarity circuit and phase inverter serving to maintain the polarity of said first electromagnet in an arbitrarily fixed direction.
Claim 6
Dependent Claim
40 words
The system as recited in claim 4 in which said system further includes a pre-amplifier connected in parallel with a viscous damping control in which both of said elements are interposed between said second electromagnet and said linear velocity transducer.
References Cited (Backward Citations)
US3842753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |