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US3730534A Expired / Lapsed US ⏱️ 0.0 years remaining

Endless magnetic tape cartridge removing apparatus

Assignee: Individual
•
Filing: 1970-06-16
•
Granted: 1973-05-01
•
Expires: 1990-06-16
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Abstract

Abstract An endless magnetic tape cartridge removing apparatus for a tape cartridge player which comprises a retention member engageable with a notch of the cartridge and bring the latter into a predetermined operative position, a displaceable member holding the retention member, a device for moving the displaceable member to the position where the retention member is escaped from the notch of the cartridge, and a pushing device for moving the cartridge away from the operative position whereby the cartridge is removed from the operative position by the pushing device when the retention member is escaped from the notch.

Inventors

  • 👤 I Ban

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 04:47
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/24; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 373 words
In a tape cartridge player for playing an endless magnetic tape cartridge, the cartridge having a notch in the side wall thereof, an apparatus for automatically removing the cartridge from a predetermined operative position in said player, comprising a deck; a rotary capstan on said deck rotatable at constant speed for driving an endless magnetic tape in a cartridge in said operative position; a retention member engageable with said notch in the cartridge for exerting a force on the cartridge to bring the latter in said operative position; a displaceable member on said deck and coupled to said retention member for positioning it with respect to said notch in the cartridge; a pivotably movable lever mounted on said deck for reciprocal movement between first and second positions; an actuator fixed to said lever and arranged to be engageable with the displaceable member; bias means for biasing the lever toward said first position; a stopper means for releasably retaining the lever in said second position against the bias of the bias means; a circular frictional wheel eccentrically mounted for rotation on said lever, said lever being operable when released from the second position by the stopper means to move under the bias of the bias means to the first position, said frictional wheel being arranged on said lever to abut against the capstan when the lever is in said first position and said frictional wheel being operable when rotated by said capstan to swing said lever and thereby move the lever from said first position to said second position at the completion of one revolution of said frictional wheel, said capstan and said frictional wheel being disengaged when said stopper member re-engages said lever, said lever being operable, during the period when it is being moved by the frictional wheel against the bias of said bias member, to move said displaceable member by engagement of said displaceable member with said actuator between the position where said retention member is engaged with said notch and the position where said retention member is escaped from said notch; and pushing means engageable with the cartridge in said operative position for pressing the cartridge away from the operative position when said retention member is escaped from said notch.
Claim 2
Dependent Claim 373 words
In a tape cartridge player for playing an endless magnetic tape cartridge, the cartridge having a notch in the side wall thereof, an apparatus for automatically removing the cartridge from a predetermined operative position in said player, comprising a deck; a rotary capstan on said deck rotatable at constant speed for driving an endless magnetic tape in a cartridge in said operative position; a retention member engageable with said notch in the cartridge for exerting a force on the cartridge to bring the latter in said operative position; a displaceable member on said deck and coupled to said retention member for positioning it with respect to said notch in the cartridge; a pivotably movable lever mounted on said deck for reciprocal movement between first and second positions; an actuator fixed to said lever and arranged to be engageable with the displaceable member; bias means for biasing the lever toward said first position; a stopper means for releasably retaining the lever in said second position against the bias of the bias means; a circular frictional wheel eccentrically mounted for rotation on said lever, said lever being operable when released from the second position by the stopper means to move under the bias of the bias means to the first position, said frictional wheel being arranged on said lever to abut against the capstan when the lever is in said first position and said frictional wheel being operable when rotated by said capstan to swing said lever and thereby move the lever from said first position to said second position at the completion of one revolution of said frictional wheel, said capstan and said frictional wheel being disengaged when said stopper member re-engages said lever, said lever being operable, during the period when it is being moved by the frictional wheel against the bias of said bias member, to move said displaceable member by engagement of said displaceable member with said actuator between the position where said retention member is engaged with said notch and the position where said retention member is escaped from said notch; and pushing means engageable with the cartridge in said operative position for pressing the cartridge away from the operative position when said retention member is escaped from said notch.
Claim 3
Dependent Claim 87 words
Said apparatus in accordance with claim 1, wherein said pushing means includes a push rod which is slidably provided on said deck having one end arranged to engage the leading edge of a cartridge in said operative position, and a spring for urging the push rod in the direction that the push rod presses the cartridge away from the operative position, and wherein energy is stored in the spring by depression of the push rod by the cartridge when the cartridge is brought into the operative position.
Claim 4
Dependent Claim 47 words
Said apparatus in accordance with claim 2, wherein said stopper means comprises a stopper lever arranged to be engageable with said lever, and a solenoid coupled to the stopper for moving the stopper lever into the position to disengage from the lever when the solenoid is energized.
Claim 5
Dependent Claim 48 words
Said apparatus in accordance with claim 1, wherein said frictional wheel has a stepped portion at the minimum eccentric portion thereof, the frictional wheel being spaced away from said capstan with the stepped portion being adjacent the capstan when said stopper lever is retained by said movable lever.

References Cited (Backward Citations)

US3575421A Cited
US3489417A Cited

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

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