US3823948A Expired / Lapsed US ⏱️ 0.0 years remaining

Disc unloading apparatus

Assignee: International Business Machines Corp

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Filing: 1972-11-13

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Granted: 1974-07-16

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Expires: 1992-11-13

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Abstract

Abstract An apparatus for unloading discs from a disc cartridge when the cartridge is inserted into an intake hopper, or loading station, of a recorder, or the like. The apparatus is incorporated into the hopper and is generally defined by a cantilevered unloader and a cantilevered gate. When the cartridge is inserted into the hopper a first extent, the cantilevered gate is pivoted, enabling the remainder of the apparatus such that the discs in the cartridge can be engaged by the unloader. Complete insertion of the cartridge into the hopper will result in downward rotation of the unloader for engaging center openings in the discs. The unloader will then hold the discs in place in the hopper until the cartridge has been completely removed. Complete removal of the cartridge will allow the cantilevered gate to return to its normal position, causing the unloader to rotate in an upward direction and out of engagement with the discs.

Inventors

👤 W Jenkins

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-24 21:34

CPC Classifications

G; G11; G11B; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/03

Claims Analysis

Total Claims: 11

Claim 1

Independent Claim 71 words

An apparatus for unloading a cartridge containing a number of discs, said apparatus comprising: a. a gate operable by said cartridge when said cartridge is inserted a first extent into said apparatus; b. an actuator operable by said cartridge upon contact and further insertion of said cartridge into said apparatus; and c. an unloader enabled upon operation of said gate for engaging said number of discs upon operation of said actuator.

Claim 2

Independent Claim 71 words

Claim 3

Dependent Claim 34 words

An apparatus according to claim 1 wherein said gate includes means for causing said unloader to be brought out of engagement with said number of discs when said cartridge is withdrawn from said apparatus.

Claim 4

Dependent Claim 34 words

An apparatus according to claim 1 wherein said unloader includes means for engaging center openings in said number of discs and maintaining said discs in said apparatus during withdrawal of cartridge from said apparatus.

Claim 5

Dependent Claim 16 words

An apparatus according to claim 3 wherein said unloader includes a follower controlled by said actuator.

Claim 6

Dependent Claim 35 words

An apparatus according to claim 4 wherein said unloader includes a latch supportable by said actuator upon operation of said gate by said cartridge when said cartridge is inserted a first extent into said apparatus.

Claim 7

Dependent Claim 37 words

An apparatus according to claim 5 wherein said actuator includes means for supporting said latch such that said unloader is maintained out of engagement with said number of discs when said cartridge is inserted said first extent.

Claim 8

Dependent Claim 41 words

An apparatus according to claim 6 wherein said actuator includes abuttment means defined by the termination of said supporting means for maintaining said unloader in engagement with said number of discs until after said cartridge has been withdrawn from said apparatus.

Claim 9

Dependent Claim 21 words

An apparatus according to claim 7 wherein said gate includes means for guiding said cartridge into, and out of, said apparatus.

Claim 10

Dependent Claim 26 words

An apparatus according to claim 8 wherein said gate includes a wing for cooperating with said cartridge upon initial insertion of said cartridge into said apparatus.

Claim 11

Dependent Claim 34 words

An apparatus according to claim 9 including a cartridge guide opposite said gate having an opening through which said number of discs can be ejected after said cartridge has been withdrawn from said apparatus.

References Cited (Backward Citations)

US2555594A Cited

GB869376A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-07-15	1978-01-14	1978-07-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-07-15	1982-01-14	1982-07-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-07-15	1986-01-14	1986-07-16	$7700.00	Window Closed / Lapsed

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