US3730618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audio and audiovisual apparatus with pincers-like rotating arm
Assignee: Individual
•
Filing: 1970-03-02
•
Granted: 1973-05-01
•
Expires: 1990-03-02
Abstract
Abstract An audio apparatus comprising a rotating information-scanning arm, having the general shape of a two-pronged yoke, which straddles and grips, in pincers-like fashion, both sides of a sound and information record, one of its gripping elements including a sound and signal reading transducer. An audiovisual embodiment of the above being an apparatus for the simultaneous, synchronized, optical projection of an image and the reproduction of its associated sound from audiovisual slides and audiovisual data-record cards having a projectable image surrounded by a spiral information track, in which case, the transducer-carrying two-pronged yoke, rotates around the optical projection beam.
Inventors
- 👤 P Dimitracopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:34
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/06
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
115 words
Audiovisual apparatus for use with a substantially flat audiovisual information record carrying a visually reproducible image surrounded by a stationary spiral information track coaxial to an also stationary spiral transducer-guiding track, said apparatus comprising: a. a stationary member fixedly supporting said record on said apparatus solely from points lying within the disc-shaped segment of said record encircled by said information track said member allowing radiation to pass therethrough. b. electrooptical means generating a radiation beam passing through said stationary member and directed onto said image, thus producing imaging rays for the visual reproduction of said image, c. information-scanning means rotably mounted around said member for rotation about said member to scan said spiral information track.
Claim 2
Dependent Claim
115 words
Audiovisual apparatus for use with a substantially flat audiovisual information record carrying a visually reproducible image surrounded by a stationary spiral information track coaxial to an also stationary spiral transducer-guiding track, said apparatus comprising: a. a stationary member fixedly supporting said record on said apparatus solely from points lying within the disc-shaped segment of said record encircled by said information track said member allowing radiation to pass therethrough. b. electrooptical means generating a radiation beam passing through said stationary member and directed onto said image, thus producing imaging rays for the visual reproduction of said image, c. information-scanning means rotably mounted around said member for rotation about said member to scan said spiral information track.
Claim 3
Dependent Claim
117 words
Apparatus according to claim 1 in which said information-scanning means comprise: a rotatable arm, having generally the shape of a two-pronged yoke which straddles and grips, in piners-like fashion, both sides of said record through gripping means secured to both prongs of said yoke, said gripping means substantially facing one another; said gripping means including at least one transducer and transducer-guiding means; said arm being rotatably mounted on said apparatus for rotation about said member, said arm having its axis of rotation substantially coaxial to the axis of said spiral information track, said transducer engaging in an information-scanning relationship said information track and being guIded by said transducer-guiding means which engage and follow said spiral transducer-guiding track.
Claim 4
Dependent Claim
25 words
Apparatus according to claim 2 in which each of the two prongs of said arm carries a transducer, their information-scanning ends substantially facing one another.
Claim 5
Dependent Claim
50 words
Apparatus according to claim 2 in which said transducer-guiding means is a stylus secured to one of the two prongs of said arm while said transducer is carried on the other prong; said stylus engaging and following a spiral groove on the record, said spiral groove constituting said transducer-guiding track.
Claim 6
Dependent Claim
33 words
Apparatus according to claim 2 in which one of the two prongs of said arm carries said transducer and the other prong carries a small pad facing the information-scanning end of said transducer.
Claim 7
Dependent Claim
38 words
Apparatus according to claim 5, in which the transducer-carrying prong also carries a stylus pointing substantially towards said small pad, said stylus engaging and following a spiral groove on said record, said spiral groove constituting said transducer-guiding track.
Claim 8
Dependent Claim
21 words
Apparatus according to claim 2, in which said arm is secured to a rotating member rotatable about said axis of rotation.
Claim 9
Dependent Claim
28 words
Apparatus according to claim 7, in which said arm is secured to said rotating member through pivot means whose axis is substantially parallel to said axis of rotation.
Claim 10
Dependent Claim
16 words
Apparatus according to claim 8, in which said arm is substantially balanced about said pivot means.
Claim 11
Dependent Claim
17 words
Apparatus according to claim 7, in which said rotating member is balanced about said axis of rotation.
Claim 12
Dependent Claim
20 words
Apparatus according to claim 7, in which at least a part of said rotating member is further supporting said record.
Claim 13
Dependent Claim
13 words
Apparatus according to claim 7, in which said rotating member is a turntable.
Claim 14
Dependent Claim
20 words
Apparatus according to claim 7, in which substantially all of said arm lies on one side of said rotating member.
Claim 15
Dependent Claim
26 words
Apparatus according to claim 7, in which part of said arm lies on one side and part lies on the other side of said rotating member.
Claim 16
Dependent Claim
26 words
Apparatus according to claim 14, in which said rotating member is formed with an aperture through which said gripping means of said arm may freely pass.
Claim 17
Dependent Claim
22 words
Apparatus according to claim 14, in which said rotating member is formed with an opening through which said yoke may freely pass.
Claim 18
Dependent Claim
21 words
Apparatus according to claim 7, in which said rotating member is formed with at least one annular ring supporting said record.
Claim 19
Dependent Claim
34 words
Apparatus according to claim 7, in which said arm is secured to said rotating member through sliding means whose lengthwise axis defines, as it rotates, a plane substantially perpendicular to said axis of rotation.
Claim 20
Dependent Claim
21 words
Apparatus according to claim 2, in which the two prongs of said arm are urged against one another by spring means.
Claim 21
Dependent Claim
41 words
Apparatus according to claim 2, in which the two prongs of said arm are hingedly secured to one another by hinge means, the plane defined by the rotating axis of said hinge means being substantially perpendicular to said axis of rotation.
Claim 22
Dependent Claim
21 words
Apparatus according to claim 2, in which signal-commutation means are provided for the transfer of electrical signals from said rotating transducer.
Claim 23
Dependent Claim
15 words
Apparatus according to claim 21, in which said signal-commutation means include slip-ring and brush means.
Claim 24
Dependent Claim
13 words
Apparatus according to claim 2, in which said transducer is a magnetic transducer.
Claim 25
Dependent Claim
17 words
Apparatus according to claim 2, including driving means to impart the rotating motion to said rotatable arm.
Claim 26
Dependent Claim
26 words
Apparatus according to claim 2, including opening means engageable with said two-prong yoke to open-up said gripping means for the insertion and removal of said record.
Claim 27
Dependent Claim
35 words
Apparatus according to claim 25, in which said opening means include an annular ring moveable towards and away from the plane of rotation of said arm, and engageable with at least one of said prongs.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |