Patent US4417757A successfully refreshed from Google Patents.
US4417757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording disc handling device
Assignee: Individual
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Filing: 1981-11-09
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Granted: 1983-11-29
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Expires: 2001-11-09
Abstract
Abstract A record handling tool employs a retractable spindle for engaging and gripping the spindle hole of a recording disc. The retractable spindle is positioned coincident with the spindle hold by contact of two spaced-apart grooves on guide arms on a record handling tool with the circular rim of the recording disc. The retractable spindle is left in its retracted position while a support arm of the tool is inserted into a dust jacket between the dust jacket and the recording disc. When contact is made between the guide arms and the edge of the recording disc, thus positioning the retractable spindle coincident with the spindle hole of the recording disc, the retractable spindle is extended from the support arm thus passing through and gripping the recording disc by its spindle hole. The recording disc remains clamped in a three point grip including two spaced-apart points of contact on the circular edge of the recording disc as well as the single point of contact at the spindle hole.
Inventors
- 👤 Thomas R. Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:00
CPC Classifications
B; B25; B25B; B25B9/00; B25B9/04; G; G11; G11B; G11B23/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A recording disc handling device for handling a recording disc having a circular edge and a spindle hole at a center thereof, comprising: first and second spaced-apart grooved members operative to engage said circular edge of said recording disc in grooves thereof at first and second spaced-apart locations; a support arm operatively connected to said first and second grooved members; said first and second grooved members being operative, when contacting said circular edge, to position said support arm adjacent said spindle hole; a retractable spindle in said support arm fully retractable in said support arm; means for extending said retractable spindle from said support arm into said spindle hole; and means for grippingly engaging said retractable spindle in said spindle hole whereby said recording disc is stably gripped at three points for handling thereof.
Claim 2
Dependent Claim
134 words
A recording disc handling device for handling a recording disc having a circular edge and a spindle hole at a center thereof, comprising: first and second spaced-apart grooved members operative to engage said circular edge of said recording disc in grooves thereof at first and second spaced-apart locations; a support arm operatively connected to said first and second grooved members; said first and second grooved members being operative, when contacting said circular edge, to position said support arm adjacent said spindle hole; a retractable spindle in said support arm fully retractable in said support arm; means for extending said retractable spindle from said support arm into said spindle hole; and means for grippingly engaging said retractable spindle in said spindle hole whereby said recording disc is stably gripped at three points for handling thereof.
Claim 3
Dependent Claim
80 words
A recording disc handling device according to claim 1, wherein said retractable spindle includes at least a first guide member on said spindle operative to guide said retractable spindle in a diagonal path between a retracted position and an extended position and said means for extending includes at least a second guide member on said support arm interengaging said first guide member and means for urging said retractable spindle along a path defined by said first and second guide members.
Claim 4
Dependent Claim
45 words
A recording disc handling device according to claim 1, wherein said retractable spindle includes a rotatable member in said support arm, a finger on said rotatable member, said finger being fully retractable into said support arm and extendable into gripping engagement with said spindle hole.
Claim 5
Dependent Claim
21 words
A recording disc handling device according to claim 3, wherein said means for extending includes means for rotating said rotatable member.
Claim 6
Dependent Claim
26 words
A recording disc handling device according to ckaim 4, wherein said means for rotating includes a tension member and a spring opposed to said tension member.
Claim 7
Dependent Claim
26 words
A recording disc handling device according to ckaim 4, wherein said means for rotating includes a tension member and a spring opposed to said tension member.
Claim 8
Dependent Claim
43 words
A recording disc handling device according to claim 1, wherein said support arm includes a raised contact pad surrounding said retractable spindle and a soft layer on said contact pad, said soft layer being effective to prevent contact damage to said recording disc.
Claim 9
Dependent Claim
185 words
A recording disc handling device for handling a recording disc, of the type having a circular edge and a spindle hole at the center thereof, comprising: a handle; first and second spaced-apart guide arms on said handle; a support arm extending from said handle; a contact area on said support arm; a first groove in said first guide arm, said first groove being effective to engage said circular edge at a first point thereon; a second groove in said second guide arm, said second guide arm, said second groove being effective to engage said circular edge at a second point thereon spaced apart from said first point; a retractable spindle in said contact area having a retracted position and an extended position; said retracted position lying at an intersection of radii a said recording disc from said first and second points whereby said retractable spindle is positioned adjacent said spindle hole; means on said handle for extending said retractable spindle into gripping engagement with said spindle hole whereby said recording disc is stably gripped in said first and second grooves and at said retractable spindle.
Claim 10
Dependent Claim
185 words
A recording disc handling device for handling a recording disc, of the type having a circular edge and a spindle hole at the center thereof, comprising: a handle; first and second spaced-apart guide arms on said handle; a support arm extending from said handle; a contact area on said support arm; a first groove in said first guide arm, said first groove being effective to engage said circular edge at a first point thereon; a second groove in said second guide arm, said second guide arm, said second groove being effective to engage said circular edge at a second point thereon spaced apart from said first point; a retractable spindle in said contact area having a retracted position and an extended position; said retracted position lying at an intersection of radii a said recording disc from said first and second points whereby said retractable spindle is positioned adjacent said spindle hole; means on said handle for extending said retractable spindle into gripping engagement with said spindle hole whereby said recording disc is stably gripped in said first and second grooves and at said retractable spindle.
References Cited (Backward Citations)
US2723877A
Cited
US3282589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |