US4332025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc clamping device
Assignee: Individual
•
Filing: 1980-12-19
•
Granted: 1982-05-25
•
Expires: 2000-12-19
Abstract
Abstract A device to secure a record to the turntable of a record player. The device comprises a releasable attachment at its center to align with the central hole in a record and to attach to the turntable. Arms to apply pressure to the record extend outwardly from said attachment to hold the record securely in contact with the turntable during playing.
Inventors
- 👤 Brian D. Thurston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:12
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B19/2009
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
193 words
A device to secure a record having a central hole, a central area surrounding the hole and a grooved play area, to a turntable of a record player, the turntable having attached to it a smooth spindle, free of identations, and extending upwardly from said turntable to be able to engage the hole in the record and to extend through said hole, the device comprising: a central boss; arms extending outwardly from the boss; a leg at the end of each arm extending downwardly when the device is in its useful position to apply pressure to the central area of the record, remoted from the spindle, adjacent the perimeter of the central area to hold the record securely in contact with the turntable during play; a split tube extending downwardly from the boss when the device is in its useful position to fit over an upstanding spindle on the turntable; and a collar on the exterior of the split tube to compress the split tube onto the spindle when the collar is moved down the tube, away from the boss, at any height on the spindle, depending on the thickness of the record.
Claim 2
Independent Claim
193 words
A device to secure a record having a central hole, a central area surrounding the hole and a grooved play area, to a turntable of a record player, the turntable having attached to it a smooth spindle, free of identations, and extending upwardly from said turntable to be able to engage the hole in the record and to extend through said hole, the device comprising: a central boss; arms extending outwardly from the boss; a leg at the end of each arm extending downwardly when the device is in its useful position to apply pressure to the central area of the record, remoted from the spindle, adjacent the perimeter of the central area to hold the record securely in contact with the turntable during play; a split tube extending downwardly from the boss when the device is in its useful position to fit over an upstanding spindle on the turntable; and a collar on the exterior of the split tube to compress the split tube onto the spindle when the collar is moved down the tube, away from the boss, at any height on the spindle, depending on the thickness of the record.
Claim 3
Dependent Claim
22 words
A device as claimed in claim 1 in which the split tube tends, when unrestricted by the collar, to open outwardly downwardly.
Claim 4
Dependent Claim
33 words
A device as claimed in claim 1 in which there are three equidistant arms and legs and flexible feet at the end of each leg to contact the central area of the record.
References Cited (Backward Citations)
GB130292A
Cited
GB167735A
Cited
GB320471A
Cited
GB419324A
Cited
US2113401A
Cited
US2293219A
Cited
US4040634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |