US3609425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating magnet motor
Assignee: Individual
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Filing: 1970-04-07
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Granted: 1971-09-28
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Expires: 1990-04-07
Abstract
Abstract A reciprocating magnetic actuator comprises first and second magnets and mounting means mounting the same in fixed, spaced, aligned relation with unlike poles facing each other. First guide means are interposed between and aligned with the first and second magnets. A third magnet is freely reciprocatable therein, being aligned with the first and second magnets and arranged with its poles facing unlike poles thereof. Stops at each end of the first guide means arrest the reciprocation of the third magnet at predetermined travel limits. Fourth and fifth magnets are interposed between the stops and the first and second magnets respectively. They are arranged substantially normal to the latter with like poles facing the like poles of the third magnet. Reciprocating drive means advance the fourth and fifth magnets alternately into the fields of force of the third magnet, thereby causing its reciprocation in the guide means. The force thus generated is used to drive a selected appliance through a power takeoff carried by the third magnet.
Inventors
- 👤 Francis R Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:43
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; H02K7/00; H02K7/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
227 words
A reciprocating magnetic actuator comprising a. first and second magnets, b. mounting means mounting the first and second magnets in fixed, spaced, aligned relation, with unlike poles facing each other, c. guide means of nonmagnetic material interposed between and aligned with the first and second magnets, d. a third magnet freely reciprocatable in the guide means, aligned with the first and second magnets and arranged with its poles facing unlike poles of the first and second magnets, e. stop means of nonmagnetic material at each end of the guide means arranged to arrest the reciprocation of the third magnet at predetermined travel limits, f. fourth and fifth magnets interposed between the stop means and the first and second magnets, respectively, and arranged with like poles opposite the like poles of the third magnet, g. and drive means connected to the fourth and fifth magnets for reciprocating them alternately between advanced positions wherein they intercept the fields of force of the first and third and second and third magnets, respectively, and retracted positions wherein they are removed from such fields of force, h. the fourth and fifth magnets alternately adjusting the third magnet when they are in their advanced positions, thereby inducing a reciprocating movement in the third magnet, and i. power takeoff means connected to the third magnet for transmitting its reciprocating movement to a driven member.
Claim 2
Dependent Claim
227 words
A reciprocating magnetic actuator comprising a. first and second magnets, b. mounting means mounting the first and second magnets in fixed, spaced, aligned relation, with unlike poles facing each other, c. guide means of nonmagnetic material interposed between and aligned with the first and second magnets, d. a third magnet freely reciprocatable in the guide means, aligned with the first and second magnets and arranged with its poles facing unlike poles of the first and second magnets, e. stop means of nonmagnetic material at each end of the guide means arranged to arrest the reciprocation of the third magnet at predetermined travel limits, f. fourth and fifth magnets interposed between the stop means and the first and second magnets, respectively, and arranged with like poles opposite the like poles of the third magnet, g. and drive means connected to the fourth and fifth magnets for reciprocating them alternately between advanced positions wherein they intercept the fields of force of the first and third and second and third magnets, respectively, and retracted positions wherein they are removed from such fields of force, h. the fourth and fifth magnets alternately adjusting the third magnet when they are in their advanced positions, thereby inducing a reciprocating movement in the third magnet, and i. power takeoff means connected to the third magnet for transmitting its reciprocating movement to a driven member.
Claim 3
Dependent Claim
37 words
The reciprocating magnetic actuator of claim 1 including guide means interposed between the stop means and the first and second magnets and arranged in a plane substantially normal thereto and housing the fourth and fifth magnets respectively.
Claim 4
Dependent Claim
47 words
The reciprocating magnetic actuator of claim 1 wherein the drive means for the fourth and fifth magnets comprises rocker arm means and pivotal connecting means connecting one end of the rocker arm to the fourth magnet and the other end of the arm to the fifth magnet.
Claim 5
Dependent Claim
59 words
The reciprocating magnetic actuator of claim 1 including a housing including three aligned chambers, the two outside chambers mounting the first and second magnets and the intermediate chamber mounting the third magnet, the third magnet having a power takeoff arm, and the intermediate chamber having a slot guiding the movement of the arm with reciprocation of the third magnet.
Claim 6
Dependent Claim
55 words
The reciprocating magnetic actuator of claim 4 wherein the housing includes a pair of recesses interposed respectively between the first and second chamber and the second and third chamber, the recess providing guideways for the fourth and fifth magnets, the end walls of the intermediate chamber acting as the stop means for the third magnet.
Claim 7
Dependent Claim
154 words
A reciprocating magnetic actuator comprising: a. a guide of nonmagnetic material, b. a magnet freely reciprocatable in the guide, c. stop means of nonmagnetic material arranged at each end of the guide to arrest the reciprocation of the magnet at predetermined travel limits, d. a pair of additional magnets arranged outside the stop means at each end of the first named magnet, in the field of force thereof, e. drive means connected to the said pair of additional magnets for reciprocating each of them alternately with the other between an advanced position wherein it intercepts the field at one of the respective ends of the first named magnet, and a retracted position wherein it is removed from such field of force, thereBy inducing a reciprocating movement in the first named magnet in the guide, and f. power takeoff means connected to the first named magnet for transmitting its reciprocating movement to a driven member.
Claim 8
Dependent Claim
154 words
A reciprocating magnetic actuator comprising: a. a guide of nonmagnetic material, b. a magnet freely reciprocatable in the guide, c. stop means of nonmagnetic material arranged at each end of the guide to arrest the reciprocation of the magnet at predetermined travel limits, d. a pair of additional magnets arranged outside the stop means at each end of the first named magnet, in the field of force thereof, e. drive means connected to the said pair of additional magnets for reciprocating each of them alternately with the other between an advanced position wherein it intercepts the field at one of the respective ends of the first named magnet, and a retracted position wherein it is removed from such field of force, thereBy inducing a reciprocating movement in the first named magnet in the guide, and f. power takeoff means connected to the first named magnet for transmitting its reciprocating movement to a driven member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |