Patent US4523306A successfully refreshed from Google Patents.
US4523306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record loading apparatus for a slot type record player
Assignee: Staar SA
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Filing: 1984-01-04
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Granted: 1985-06-11
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Expires: 2004-01-04
Abstract
Abstract A record player having a mechanism for guiding and centering records of different sizes on a driving spindle. Two pairs of levers are mounted on a record carrier at diametrically opposed positions. The levers have generally circular hubs mounted on pivots carried by the record support and extending arms including record engaging studs. Insertion of a record engages the studs to pivot the arms which guide the record to a centered position. Alignment of slots in the hubs of at least one of the pairs of levers sense the proper positioning of the record and trigger the player to rotate the record carrier from the load to the play position.
Inventors
- 👤 Marcel J. H. Staar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:22
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/05; G11B17/051; G11B17/0515
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
In a record player apparatus for automatically guiding and centering records of different sizes on a driving spindle, the combination comprising, a base, a record support helically rotatable on the base between a raised load position for receiving a record and a lowered play position for positioning a record on the driving spindle, two pairs of levers mounted for pivotable movement on the support at diametrically opposed pivot points, means on the levers for engaging a record in the load position, guide means for the levers for guiding the record to a centered position as the record is inserted into the player, and trigger means responsive to the degree of deflection of the lever pairs for initiating the helical rotation of the record support from the load to the play position.
Claim 2
Dependent Claim
131 words
In a record player apparatus for automatically guiding and centering records of different sizes on a driving spindle, the combination comprising, a base, a record support helically rotatable on the base between a raised load position for receiving a record and a lowered play position for positioning a record on the driving spindle, two pairs of levers mounted for pivotable movement on the support at diametrically opposed pivot points, means on the levers for engaging a record in the load position, guide means for the levers for guiding the record to a centered position as the record is inserted into the player, and trigger means responsive to the degree of deflection of the lever pairs for initiating the helical rotation of the record support from the load to the play position.
Claim 3
Dependent Claim
30 words
The combination as set out in claim 1 in which the degree of deflection of the lever pairs is a function of the diameter and position of an inserted record.
Claim 4
Dependent Claim
53 words
The combination set out in claim 1 in which each lever comprises a partly circular hub portion, an arm extending from the hub, and means on the arm for contacting the record, the hub portions of the levers of a pair being superimposed when the lever pairs are mounted on their associated pivots.
Claim 5
Dependent Claim
68 words
The combination as set out in claim 3 in which the trigger means comprise apertures in the superimposed partly circular hubs of at least one pair of levers, said apertures being disposed for relative alignment when a record is properly positioned on the record support, and means for sensing said relative alignment for initiating the helical rotation of the record support from the load to the play position.
Claim 6
Dependent Claim
63 words
The combination as set out in claim 1 in which the trigger means comprise apertures in the levers of at least one pair, said apertures being disposed for relative alignment when a record is properly positioned on the record support, and means for sensing said relative alignment for initiating the helical rotation of the record support from the load to the play position.
Claim 7
Dependent Claim
52 words
The combination as set out in claim 1 further including a stud on each of said levers, and slot means in the base for engaging the studs as the record support is rotated to the play position thereby to release the record engaging means for rotation of the record by the spindle.
Claim 8
Dependent Claim
45 words
The combination as set out in claim 1 further including release means associated with the levers for engaging the base as the record support is rotated to the play position, thereby to release the record engaging means for rotation of the record by the spindle.
Claim 9
Dependent Claim
32 words
The combination as set out in claim 1 in which the record support includes helical ramps and the base includes cooperating slots whereby rotation of the record support causes helical movement thereof.
Claim 10
Dependent Claim
41 words
The combination as set out in claim 8 in which the levers include release means for engaging the base to cause additional rotation of the levers thereby to release the record engaging means for rotation of the record by the spindle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |