US5717266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power oscillatory drive
Assignee: Penn State Research Foundation
•
Filing: 1996-03-11
•
Granted: 1998-02-10
•
Expires: 2016-03-11
Abstract
Abstract An oscillatory drive incorporating the invention includes a driven rotor that is mounted on a shaft and includes plural driven permanent magnets disposed thereon. A spring arrangement is coupled to the driven rotor and limits both clock-wise (CW) and counter-clockwise (CCW) rotation thereof. A first driving rotor includes first driving magnets, is mounted for rotation on the shaft and is positioned to a first side of the driven rotor. A second driving rotor includes second driving permanent magnets, is mounted for rotation on the shaft and is positioned to a second side of the driven rotor. The drive mechanism imparts a CW rotation to the first driving rotor and a CCW rotation to the second driving rotor. The first driving permanent magnets coupling to the driven permanent magnets causes a CW rotation of the driven rotor until the spring arrangement terminates the CW rotation and causes a reversal of rotation direction in the CCW direction. The CCW rotation of the second driving rotor and the coupling of its second driving permanent magnets aid the CCW rotation of the driven rotor until that rotation is terminated by the spring arrangement. The reciprocal movement of the driven rotor continues for the duration of energization of the first and second driving rotors.
Inventors
- 👤 Julian D. Maynard, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:48
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; H02K49/102; H02K7/00; H02K7/06; Y; Y10; Y10S; Y10S74/00; Y10S74/04; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
234 words
An oscillating drive comprising: a shaft; a driven rotor mounted on said shaft and having plural driven magnet means; spring means coupled to said driven rotor for limiting both clockwise(CW) and counterclockwise(CCW) rotation thereof; a first driving rotor means including first driving magnet means, mounted for rotation on said shaft and positioned to a first side of said driven rotor, said first driving magnet means magnetically coupled to said plural driven magnet means; a second driving rotor means including second driving magnet means, mounted for rotation on said shaft and positioned to a second side of said driven rotor, said second driving magnet means magnetically coupled to said plural driven magnet means; drive means for imparting a CW rotation to said first driving rotor means and a CCW rotation to said second driving rotor means; wherein said first driving magnet means is magnetically coupled to said driven magnet means aiding CW rotation of said driven rotor until said spring means terminates said CW rotation and causes commencement of rotation of said driven rotor in a CCW direction, said CCW rotation of said second driving rotor means and magnetic coupling of said second driving magnet means to said driven magnet means aiding CCW rotation of said driven rotor until terminated by said spring means, said first driving rotor means, said second driving rotor means, and said spring thereby causing oscillating rotation of said driven rotor.
Claim 2
Dependent Claim
234 words
An oscillating drive comprising: a shaft; a driven rotor mounted on said shaft and having plural driven magnet means; spring means coupled to said driven rotor for limiting both clockwise(CW) and counterclockwise(CCW) rotation thereof; a first driving rotor means including first driving magnet means, mounted for rotation on said shaft and positioned to a first side of said driven rotor, said first driving magnet means magnetically coupled to said plural driven magnet means; a second driving rotor means including second driving magnet means, mounted for rotation on said shaft and positioned to a second side of said driven rotor, said second driving magnet means magnetically coupled to said plural driven magnet means; drive means for imparting a CW rotation to said first driving rotor means and a CCW rotation to said second driving rotor means; wherein said first driving magnet means is magnetically coupled to said driven magnet means aiding CW rotation of said driven rotor until said spring means terminates said CW rotation and causes commencement of rotation of said driven rotor in a CCW direction, said CCW rotation of said second driving rotor means and magnetic coupling of said second driving magnet means to said driven magnet means aiding CCW rotation of said driven rotor until terminated by said spring means, said first driving rotor means, said second driving rotor means, and said spring thereby causing oscillating rotation of said driven rotor.
Claim 3
Dependent Claim
20 words
The oscillatory drive as recited in claim 1, wherein each of said magnet means comprises at least one permanent magnet.
Claim 4
Dependent Claim
41 words
The oscillatory drive as recited in claim 1, wherein said plural driven magnet means are mounted at a uniform radius from said shaft, as are said first driving magnet means and second driving magnet means, whereby magnet coupling therebetween is enhanced.
Claim 5
Dependent Claim
68 words
The oscillatory drive as recited in claim 1, wherein said driven rotor is hollow, said first driving rotor means is mounted for rotation within said driven rotor and said second rotor means comprises a pair of rotors mounted to either side of said driven rotor and are controlled to rotate in a common direction which is opposed to a direction of rotation of said first driving rotor means.
Claim 6
Dependent Claim
63 words
The oscillatory drive as recited in claim 1, further comprising: output means coupled to said driven rotor, said output means comprising an annular enclosure mounted about said driven rotor and containing a heat transfer fluid, said enclosure further including heat exchange means for extracting heat from said heat transfer fluid which is a result of thermoacoustic heating thereof resulting from said oscillation rotation.
Claim 7
Dependent Claim
241 words
An oscillating drive comprising: a shaft; a hollow driven rotor mounted on said shaft and having plural driven magnet means; spring means coupled to said driven rotor for limiting both clockwise(CW) and counterclockwise(CCW) rotation therefor, a first driving rotor means including first driving magnet means, rigidly mounted on said shaft and positioned within said hollow driven rotor, said first driving magnet means magnetically coupled to said plural driven magnet means; a second driving rotor means including second driving magnet means, mounted for rotation on said shaft and positioned to either side of said driven rotor, said second driving magnet means magnetically coupled to said plural driven magnet means; drive means for imparting a first rotation direction to said first driving rotor means and a second rotation direction to said second driving rotor means; wherein said first driving magnet means is coupled to said driven magnet means aiding rotation of said driven rotor in said first rotation direction until said spring means terminates said first direction rotation and causes commencement of rotation of said driven rotor in said second rotation direction, said second direction rotation of said second driving rotor means and magnetic coupling of said second driving magnet means to said driven magnet means aiding rotation of said driven rotor in said second direction until terminated by said spring means, said first driving rotor means, said second driving rotor means, and said spring thereby causing oscillating rotation of said driven rotor.
Claim 8
Dependent Claim
241 words
An oscillating drive comprising: a shaft; a hollow driven rotor mounted on said shaft and having plural driven magnet means; spring means coupled to said driven rotor for limiting both clockwise(CW) and counterclockwise(CCW) rotation therefor, a first driving rotor means including first driving magnet means, rigidly mounted on said shaft and positioned within said hollow driven rotor, said first driving magnet means magnetically coupled to said plural driven magnet means; a second driving rotor means including second driving magnet means, mounted for rotation on said shaft and positioned to either side of said driven rotor, said second driving magnet means magnetically coupled to said plural driven magnet means; drive means for imparting a first rotation direction to said first driving rotor means and a second rotation direction to said second driving rotor means; wherein said first driving magnet means is coupled to said driven magnet means aiding rotation of said driven rotor in said first rotation direction until said spring means terminates said first direction rotation and causes commencement of rotation of said driven rotor in said second rotation direction, said second direction rotation of said second driving rotor means and magnetic coupling of said second driving magnet means to said driven magnet means aiding rotation of said driven rotor in said second direction until terminated by said spring means, said first driving rotor means, said second driving rotor means, and said spring thereby causing oscillating rotation of said driven rotor.
References Cited (Backward Citations)
US2790095A
Cited
US2843742A
Cited
US4599551A
Cited
US4686407A
Cited
US4885487A
Cited
US5115157A
Cited
US4950931A
Cited
US5456082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-02-09 | 2001-08-11 | 2002-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-09 | 2005-08-11 | 2006-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-09 | 2009-08-11 | 2010-02-10 | $7700.00 | Window Closed / Lapsed |